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Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater SCIE
期刊论文 | 2025 , 389 | FUEL
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Abstract :

Among many ways that can improve the electrolysis catalysts of seawater, designing the catalyst with hierarchical nanostructure has received extensive attention because it allows a larger surface area and more active sites. In this work, the NC-enveloped CoS/NiS@Cu2S catalyst with multi-level structure was successfully synthesized by using the complex of trithiocyanuric acid and copper as the metal dopant to coat the spherical Co-Ni precursor, and then by a straightforward one-step high-temperature self-vulcanization reaction. Trithiocyanuric acid not only facilitated the sulfurization of metal elements but also served as N and C source coated on the catalyst. This method constructed structure-controllable, multi-level, and yolk-shelled nanostructure in a facile manner, greatly increasing specific surface area, expanded mass transport channels, and enhancing the exposure of active sites. Besides, the coating of N and C elements significantly increased the electrical conductivity and electrochemical activity of the catalyst. As a result, CoS/NiS@Cu2S@NC exhibited excellent hydrogen evolution performance with the small overpotential of 105, 161, and 176 mV at 10 mA cm-2 in alkaline water, simulated alkaline seawater, and alkaline seawater, respectively. The present approach is proposed as an inspirational idea of the design of cobalt-nickel-copper-based multi-level structural nanomaterials as non-platinum electrocatalysts for hydrogen evolution in seawater.

Keyword :

Alkaline seawater Alkaline seawater CoS/NiS@Cu 2 S@NC CoS/NiS@Cu 2 S@NC Hydrogen evolution reaction Hydrogen evolution reaction Non-platinum electrocatalyst Non-platinum electrocatalyst Transition metal chalcogenide Transition metal chalcogenide Yolk-shelled structure Yolk-shelled structure

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GB/T 7714 Guo, Ming , Luo, Ao , Guan, Guoxiang et al. Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater [J]. | FUEL , 2025 , 389 .
MLA Guo, Ming et al. "Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater" . | FUEL 389 (2025) .
APA Guo, Ming , Luo, Ao , Guan, Guoxiang , Qian, Xing , Yi, Ting , Chen, Ming et al. Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater . | FUEL , 2025 , 389 .
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Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater EI
期刊论文 | 2025 , 389 | Fuel
Multi-level structure-controllable NC-enveloped CoS/NiS@Cu2S yolk-shelled nanospheres as Pt-free catalysts for efficient hydrogen evolution in alkaline water/seawater Scopus
期刊论文 | 2025 , 389 | Fuel
Life prediction model and performance degradation of lithium-ion battery under different cut-off voltages SCIE
期刊论文 | 2025 , 420 | SOLID STATE IONICS
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Abstract :

Battery lifetime prediction is critical to successfully introducing new products to the market, and a long testing time will affect the promotion of the product. In this paper, The prediction model of battery cycle life composed of cut-off voltages and state of health (SOH) is established based on an inverse power law equation to evaluate the NCM(811)battery. It is found that the capacity is more sensitive to the charge cut-off voltages (CCOV) than to the discharge cut-off voltages (DCOV). The capacity degrades to 67.3 % at 180th cycle in the range of 3-4.4 V, while it is 65.8 % at 380th cycle in the range of 2.5-4.2 V (the normal work voltage of battery is 3-4.2 V). The internal resistance and capacity degradation of the battery is analyzed by the incremental capacity curve and the hybrid pulse power characterization (HPPC) test. The error between prediction and measurement is less than 3 % within 400 cycles, and the model can predict the battery lifetime under different conditions (SOH, voltage). It helps to shorten the test time of new products and optimize the operating conditions of battery.

Keyword :

Accelerated life test Accelerated life test Capacity degradation Capacity degradation Life prediction model Life prediction model Lithium-ion battery Lithium-ion battery

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GB/T 7714 Lei, Pengju , Xiong, Yonglian , Zhang, Chao et al. Life prediction model and performance degradation of lithium-ion battery under different cut-off voltages [J]. | SOLID STATE IONICS , 2025 , 420 .
MLA Lei, Pengju et al. "Life prediction model and performance degradation of lithium-ion battery under different cut-off voltages" . | SOLID STATE IONICS 420 (2025) .
APA Lei, Pengju , Xiong, Yonglian , Zhang, Chao , Yi, Ting , Qian, Xing . Life prediction model and performance degradation of lithium-ion battery under different cut-off voltages . | SOLID STATE IONICS , 2025 , 420 .
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Life prediction model and performance degradation of lithium-ion battery under different cut-off voltages Scopus
期刊论文 | 2025 , 420 | Solid State Ionics
Life prediction model and performance degradation of lithium-ion battery under different cut-off voltages EI
期刊论文 | 2025 , 420 | Solid State Ionics
Structural Reconstruction via Carbon Nanotube Spatially Confined Metal Catalysis: A Morphology-Controlled Approach to Convert Polycyclic Aromatic Hydrocarbon into Carbon Nanofibers for Highly Active Anodes in Li-Ion Batteries SCIE
期刊论文 | 2025 , 64 (7) , 3594-3607 | INORGANIC CHEMISTRY
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By a carbon nanotube (CNT) spatially confined metal-catalyzed structural reconstruction, carbon nanofibers (CNFs) with a hollow, hollow-solid, solid graphite core, and CNT shell are prepared using nitrogen heterocycle (NHC) and polycyclic aromatic hydrocarbon (PAH) as carbon sources. The formation mechanism of CNFs with oriented graphene layers and enlarged intergraphene spacing is studied by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and selected area electron diffraction analysis. It revealed that this one-dimensional nanoconfined metal-catalyzed carbon rearrangement is totally different from the reported spatially localized metal-catalyzed graphitization of electrospun polymer and nanocasted carbohydrate nanofibers, as the graphene orientation, cavity volume, and interlayer distance of CNFs can be controlled by the carbon concentration-related competitive metal-catalyzed tip growth of latitudinal and longitudinal graphene layers from NHC and PAH. The unique CNF structure renders good electronic/ionic conductivity, abundant Li+ storage interlayer gaps, and robust mechanical durability, resulting in outstanding electrochemical properties as anodes in lithium-ion batteries. The optimum CNF anode delivers a stable discharge capacity of 475 mA h g-1 at 0.1 C, an extraordinary rate capability of 303 mA h g-1 at 5 C, and a remarkable long-term cycling stability of 378 mA h g-1 after 600 cycles at 1 C. This 1D nanoconfined metal catalysis synthesis could be useful for the development of efficient CNF anodes in many electrochemical reactions with a potential for industrial applications.

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GB/T 7714 Chen, Ming , Zhao, Ming-Yang , Liu, Ke et al. Structural Reconstruction via Carbon Nanotube Spatially Confined Metal Catalysis: A Morphology-Controlled Approach to Convert Polycyclic Aromatic Hydrocarbon into Carbon Nanofibers for Highly Active Anodes in Li-Ion Batteries [J]. | INORGANIC CHEMISTRY , 2025 , 64 (7) : 3594-3607 .
MLA Chen, Ming et al. "Structural Reconstruction via Carbon Nanotube Spatially Confined Metal Catalysis: A Morphology-Controlled Approach to Convert Polycyclic Aromatic Hydrocarbon into Carbon Nanofibers for Highly Active Anodes in Li-Ion Batteries" . | INORGANIC CHEMISTRY 64 . 7 (2025) : 3594-3607 .
APA Chen, Ming , Zhao, Ming-Yang , Liu, Ke , Liu, Feng-Ming , Yuan, Zhong-Yong , Qian, Xing et al. Structural Reconstruction via Carbon Nanotube Spatially Confined Metal Catalysis: A Morphology-Controlled Approach to Convert Polycyclic Aromatic Hydrocarbon into Carbon Nanofibers for Highly Active Anodes in Li-Ion Batteries . | INORGANIC CHEMISTRY , 2025 , 64 (7) , 3594-3607 .
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Structural Reconstruction via Carbon Nanotube Spatially Confined Metal Catalysis: A Morphology-Controlled Approach to Convert Polycyclic Aromatic Hydrocarbon into Carbon Nanofibers for Highly Active Anodes in Li-Ion Batteries Scopus
期刊论文 | 2025 , 64 (7) , 3594-3607 | Inorganic Chemistry
Structural Reconstruction via Carbon Nanotube Spatially Confined Metal Catalysis: A Morphology-Controlled Approach to Convert Polycyclic Aromatic Hydrocarbon into Carbon Nanofibers for Highly Active Anodes in Li-Ion Batteries EI
期刊论文 | 2025 , 64 (7) , 3594-3607 | Inorganic Chemistry
Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage SCIE
期刊论文 | 2024 , 40 (9) , 4852-4859 | LANGMUIR
WoS CC Cited Count: 7
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Abstract :

Transition metal oxides with the merits of high theoretical capacities, natural abundance, low cost, and environmental benignity have been regarded as a promising anodic material for lithium ion batteries (LIBs). However, the severe volume expansion upon cycling and poor conductivity limit their cycling stability and rate capability. To address this issue, NiO embedded and N-doped porous carbon nanorods (NiO@NCNR) and nanotubes (NiO@NCNT) are synthesized by the metal-catalyzed graphitization and nitridization of monocrystalline Ni(II)-triazole coordinated framework and Ni(II)/melamine mixture, respectively, and the following oxidation in air. When applied as an anodic material for LIBs, the NiO@NCNR and NiO@NCNT hybrids exhibit a decent capacity of 895/832 mA h g(-1) at 100 mA g(-1), high rate capability of 484/467 mA h g(-1) at 5.0 A g(-1), and good long-term cycling stability of 663/634 mA h g(-1) at 600th cycle at 1 A g-1, which are much better than those of NiO@carbon black (CB) control sample (701, 214, and 223 mA h g(-1)). The remarkable electrochemical properties benefit from the advanced nanoarchitecture of NiO@NCNR and NiO@NCNT, which offers a length-controlled one-dimensional porous carbon nanoarchitecture for effective e-/Li+ transport, affords a flexible carbon skeleton for spatial confinement, and forms abundant nanocavities for stress buffering and structure reinforcement during discharge/charging processes. The rational structural design and synthesis may pave a way for exploring advanced metal oxide based anodic materials for next-generation LIBs.

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GB/T 7714 Chen, Ming , Zhao, Ming-Yang , Liu, Feng-Ming et al. Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage [J]. | LANGMUIR , 2024 , 40 (9) : 4852-4859 .
MLA Chen, Ming et al. "Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage" . | LANGMUIR 40 . 9 (2024) : 4852-4859 .
APA Chen, Ming , Zhao, Ming-Yang , Liu, Feng-Ming , Li, Meng-Ting , Zhang, Meng-Lei , Qian, Xing et al. Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage . | LANGMUIR , 2024 , 40 (9) , 4852-4859 .
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Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage Scopus
期刊论文 | 2024 , 40 (9) , 4852-4859 | Langmuir
Self-Catalyzed Synthesis of Length-Controlled One-Dimensional Nickel Oxide@N-Doped Porous Carbon Nanostructures from Metal Ion Modified Nitrogen Heterocycles for Efficient Lithium Storage EI
期刊论文 | 2024 , 40 (9) , 4852-4859 | Langmuir
One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices SCIE
期刊论文 | 2024 , 221 | EUROPEAN POLYMER JOURNAL
WoS CC Cited Count: 1
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Abstract :

Conductive hydrogels have shown a great potential in the field of flexible electronics. However, it is difficult to combine high strength and high toughness in conductive hydrogels prepared by conventional methods, which limits their applications in various fields. In this work, we pioneered a facile and cost-effective strategy to prepare soy protein isolate/poly(vinyl alcohol) (SPI/PVA) conductive hydrogels with high strength, toughness, low- temperature resistance, and recyclability by introducing all the salts into the prescuor solution directly. To solve the problem of unable to directly introducing high concentration Na3Cit into the soy protein isolate/PVA solution, MgCl2 was used to alleviate the strong salting-out effect of Na3Cit. Thus the stable SPI/PVA/EG/MgCl2/ Na3Cit complex solution was obtained and the SPI/PVA/EG/MgCl2/Na3Cit (SPEMS) organohydrogel was prepared by the freezing/thawing process. The optimum tensile strength of the SPEMS organohydrogel was 1.1 +0.07 MPa, and the elongation at break was 701.3+23.67 %, respectively. Meanwhile, the ionic conductivity of the organohydrogel was as high as 1.7+0.01 S/m. Finally, the EG/H2O binary solvent system endowed the organohydrogel with excellent low-temperature resistance (freezing point of-19.4 degrees C). The strain sensors assembled with SPEMS organohydrogels were characterized by high sensitivity (GF = 3.2, strain range from 20 %-500 %) and long-term stability. The flexible all-solid-state supercapacitor assembled with SPEMS organohydrogel as the electrolyte and activated carbon as the electrodes has a high area specific capacitance (113.76 mF/cm2) and good cycling stability (capacitance retention of 81.62 % after 1,000 charging and discharging cycles) at room temperature.

Keyword :

Hofmeister effect Hofmeister effect One-pot preparation One-pot preparation Poly(vinyl alcohol) Poly(vinyl alcohol) Soy protein isolate Soy protein isolate Strain sensor Strain sensor

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GB/T 7714 Hu, Mingqiang , Deng, Yingxue , Qian, Xing et al. One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices [J]. | EUROPEAN POLYMER JOURNAL , 2024 , 221 .
MLA Hu, Mingqiang et al. "One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices" . | EUROPEAN POLYMER JOURNAL 221 (2024) .
APA Hu, Mingqiang , Deng, Yingxue , Qian, Xing , Ye, Dezhan , Jiang, Xiancai , Xiao, Gao . One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices . | EUROPEAN POLYMER JOURNAL , 2024 , 221 .
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One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices Scopus
期刊论文 | 2024 , 221 | European Polymer Journal
One-pot preparation of strong, tough, frost-resistant and recyclable organohydrogels via Hofmeister effect and its application for electronic devices EI
期刊论文 | 2024 , 221 | European Polymer Journal
Fe2 P-coated Ni2 P/Co2 P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution SCIE
期刊论文 | 2024 , 78 , 851-860 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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Abstract :

At present, the exploration of renewable energy is a huge challenge, and water electrolysis is regarded as a promising method for producing hydrogen. However, the hydrogen evolution reaction (HER) has been hampered due to expensive Pt-based catalysts. Herein, the Fe 2 P-coated Ni 2 P/Co 2 P nanospheres with yolk-shelled structure were successfully synthesized according to a facile approach of doping transition metal elements and phosphating on the template Ni -Co nanospheres, successively. All samples were tested as HER catalysts at various pH environments. The results showed that the Fe 2 P-Ni 2 P/Co 2 P possesses superior electrocatalytic ability and good stability. The Fe 2 P-Ni 2 P/Co 2 P achieved the lower eta onset (overpotential at 1.0 mA cm -2 ) of 36.6, 64.2, and 65.9 mV, eta 10 (overpotential at 10 mA cm -2 ) of 89.7, 125, and 212 mV, and Tafel slopes of 48.0, 60.3, and 135 mV dec - 1 in acidic, alkaline, and neutral solutions, respectively, exhibiting an excellent electrocatalytic activity of the multicomponent phosphides for HER.

Keyword :

Fe2P-Ni2P/Co2P Fe2P-Ni2P/Co2P Hydrogen evolution reaction Hydrogen evolution reaction Multicomponent material Multicomponent material Transition metal phosphide Transition metal phosphide Water electrolysis Water electrolysis Yolk-shelled structure Yolk-shelled structure

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GB/T 7714 Chen, Wenbin , Chen, Siyan , Guo, Ming et al. Fe2 P-coated Ni2 P/Co2 P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2024 , 78 : 851-860 .
MLA Chen, Wenbin et al. "Fe2 P-coated Ni2 P/Co2 P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 78 (2024) : 851-860 .
APA Chen, Wenbin , Chen, Siyan , Guo, Ming , Jiang, Xiancai , Xia, Juan , Chen, Ming et al. Fe2 P-coated Ni2 P/Co2 P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2024 , 78 , 851-860 .
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Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution EI
期刊论文 | 2024 , 78 , 851-860 | International Journal of Hydrogen Energy
Fe2P-coated Ni2P/Co2P yolk-shelled porous nanospheres as advanced Pt-free electrocatalysts for efficient pH-universal hydrogen evolution Scopus
期刊论文 | 2024 , 78 , 851-860 | International Journal of Hydrogen Energy
Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution SCIE
期刊论文 | 2024 , 655 | APPLIED SURFACE SCIENCE
WoS CC Cited Count: 6
Abstract&Keyword Cite Version(2)

Abstract :

Green energy such as hydrogen energy has broad development prospects in promoting the adjustment of energy structure due to its advantages in cleanliness and efficiency. Hydrogen evolution reaction (HER) for water splitting can be used as a simple and effective avenue for hydrogen production. Platinum (Pt), a noble metal, has shown excellent catalytic performance as a conventional cathode catalyst for HER, but its high price has severely hindered its commercial application. Herein, a hollow nanorod array based Pt-free self-supporting electrode with a unique structure was developed for efficient hydrogen evolution reactions. This electrode was composed of a hollow ordered Ni-CoS2@MoS2 array as the main catalyst and a highly conductive Ti foil as a conducting substrate. In the synthesis process, ammonium tetrathiomolybdate was used as a multifunctional vulcanizing agent. Thanks to the unique structure of the hollow nanorods, the active ingredient was adequately revealed, making it possible to improve catalytic activity. This unique catalyst exhibited excellent HER performance at different pH values. Ni-CoS2@MoS2/Ti electrode exhibited high HER performance in alkaline, acidic, and neutral media, with overpotentials of 153, 192, and 196 mV at 10 mA cm -2 and Tafel slopes of 65.8, 67.8, and 93.3 mV dec-1, respectively.

Keyword :

Active cite Active cite Hollow nanorod array Hollow nanorod array Hydrogen evolution Hydrogen evolution Water splitting Water splitting Wide pH range Wide pH range

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GB/T 7714 Qian, Xing , Wu, Jiashuo , Yang, Yajie et al. Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution [J]. | APPLIED SURFACE SCIENCE , 2024 , 655 .
MLA Qian, Xing et al. "Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution" . | APPLIED SURFACE SCIENCE 655 (2024) .
APA Qian, Xing , Wu, Jiashuo , Yang, Yajie , Zhang, Wanting , Zheng, Han , Xia, Juan et al. Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution . | APPLIED SURFACE SCIENCE , 2024 , 655 .
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Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution Scopus
期刊论文 | 2024 , 655 | Applied Surface Science
Ni-CoS2@MoS2 hollow nanorod array in-situ synthesized on Ti foil as Pt-free self-supporting electrode for efficient wide-pH hydrogen evolution EI
期刊论文 | 2024 , 655 | Applied Surface Science
Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model SCIE
期刊论文 | 2024 , 171 (9) | JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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Abstract :

The thermal safety of lithium-ion batteries has garnered significant attention due to its pivotal role in the field of new energy. In this work, a three-dimensional electrochemical-thermal coupling model based on the P2D model was established for predicting the thermal performance. The charge-discharge and temperature rise experiments via 18650 cylindrical Li[Ni0.6Co0.2Mn0.2]O-2 / graphite batteries are designed to confirm the rationality of the model. The simulation results show that the highest temperature of the battery surface during discharging at 1 C and 4 C are 42.85 degrees C and 61.25 degrees C, and the experimental results are 42.50 degrees C and 62.85 degrees C, respectively. The electrode heat generation mainly comes from the reaction heat of cathode and anode during 1 C charge process, the maximum power is 1.2 W and 0.6 W, respectively. In the discharge process, the cathode dominates the reaction contribution of 1.02 W and the reaction heat power from the anode is only 0.016 W. The capacity of heat dissipation can be increased by enhancing the convective heat transfer coefficient and air velocity within a reasonable range. The proposed electrochemical-thermal coupling model is valuable to evaluate the heat behavior and promote the battery development.

Keyword :

electrochemical-thermal coupling model electrochemical-thermal coupling model electrode heat generation electrode heat generation heat dissipation heat dissipation lithium-ion batteries lithium-ion batteries thermal performance thermal performance

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GB/T 7714 Zhang, Chao , Shang, Jin , Xiong, Yonglian et al. Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model [J]. | JOURNAL OF THE ELECTROCHEMICAL SOCIETY , 2024 , 171 (9) .
MLA Zhang, Chao et al. "Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model" . | JOURNAL OF THE ELECTROCHEMICAL SOCIETY 171 . 9 (2024) .
APA Zhang, Chao , Shang, Jin , Xiong, Yonglian , Yi, Ting , Hou, Quanhui , Qian, Xing . Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model . | JOURNAL OF THE ELECTROCHEMICAL SOCIETY , 2024 , 171 (9) .
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Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model EI
期刊论文 | 2024 , 171 (9) | Journal of the Electrochemical Society
Thermal Performance of a Cylindrical Li[Ni0.6Co0.2Mn0.2]O2/Graphite Battery based on the Electrochemical-Thermal Coupling Model Scopus
期刊论文 | 2024 , 171 (9) | Journal of the Electrochemical Society
N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions SCIE
期刊论文 | 2024 , 1001 | JOURNAL OF ALLOYS AND COMPOUNDS
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Abstract :

An available approach to ameliorate the property of electrocatalysts for transition metal selenides (TMSs) is to transform their structure, morphology, and elemental composition, especially for hydrogen evolution reactions (HER), which can be a long-term task. In this work, Ni-Co nanospheres were synthesized by a hydrothermal method, and then in the synchronous processes of selenization and carbonization, it reacted with the peripherally coated melamine-copper complex, which was the reactant between melamine and copper ions. Ultimately, CoSe 2 /NiSe 2 @Cu 2 Se-NC nanospheres with a core-shell structure were synthesized after annealing process. This special structure provided more active attachment sites, enabling CoSe 2 /NiSe 2 @Cu 2 Se-NC to exhibit excellent HER properties under wide-pH range. Especially, in acidic conditions, it had a low initial potential of 41.0 mV, a small Tafel slope value of 48.7 mV dec - 1 , and a long service life. The proposed scheme indicates that a new approach will be added to the synthesis of electrocatalysts based on TMSs.

Keyword :

Core-shell structure Core-shell structure CoSe2/NiSe2@Cu2Se-NC CoSe2/NiSe2@Cu2Se-NC Hydrogen evolution reaction Hydrogen evolution reaction Non-platinum electrocatalysts Non-platinum electrocatalysts Transition metal selenides Transition metal selenides Wide-pH range Wide-pH range

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GB/T 7714 Guo, Ming , Chen, Siyan , Xiong, Yonglian et al. N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 1001 .
MLA Guo, Ming et al. "N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions" . | JOURNAL OF ALLOYS AND COMPOUNDS 1001 (2024) .
APA Guo, Ming , Chen, Siyan , Xiong, Yonglian , Chen, Ming , Xia, Juan , Chen, Wenbin et al. N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions . | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 1001 .
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N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions EI
期刊论文 | 2024 , 1001 | Journal of Alloys and Compounds
N-doped carbon-enveloped CoSe2/NiSe2@Cu2Se core-shell nanospheres as non-Pt electrocatalysts for enhanced wide-pH hydrogen evolution reactions Scopus
期刊论文 | 2024 , 1001 | Journal of Alloys and Compounds
Capacity degradation prediction model of LiMn0.6Fe0.4PO4/LiNi0.5Co0.2Mn0.3O2 composite cathode materials for lithium-ion batteries SCIE
期刊论文 | 2024 , 31 (1) , 217-228 | IONICS
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Abstract :

Battery lifetime prediction is critical to successfully introducing new products to the market, and a long testing time will affect the promotion of the product. In this paper, the ambient temperature (25-45 degrees C), charge cut-off voltage (CCOV) (4.2-4.4 V), and discharge rate (0.5-2C) to performance degradation of LiMn0.6Fe0.4PO4 and LiNi0.5Co0.2Mn0.3O2 (LMFP/NCM) composite cathode batteries are revealed by the accelerated life test. The results indicated that the CCOV in the range of 4.3 -\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$-$$\end{document} 4.4 V was significant. The discharge rate effect was less affected (no more than 2C). Furthermore, single stress factor and multi-stress factor models consisting of temperature, discharge rate, CCOV, and state of health (SOH) for cycle life prediction are developed based on the revised Arrhenius equation and the inverse power law equation. It is shown that the proposed life model can accurately predict battery capacity degradation, and the estimation error is less than 2%. The developed model helps to predict the lifetime of the battery under different SOH and optimize the operation conditions of the battery.

Keyword :

Accelerated life test Accelerated life test Capacity degradation Capacity degradation Life prediction model Life prediction model Lithium-ion composite battery Lithium-ion composite battery

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GB/T 7714 Lei, Pengju , Wei, Ying , Xiong, Yonglian et al. Capacity degradation prediction model of LiMn0.6Fe0.4PO4/LiNi0.5Co0.2Mn0.3O2 composite cathode materials for lithium-ion batteries [J]. | IONICS , 2024 , 31 (1) : 217-228 .
MLA Lei, Pengju et al. "Capacity degradation prediction model of LiMn0.6Fe0.4PO4/LiNi0.5Co0.2Mn0.3O2 composite cathode materials for lithium-ion batteries" . | IONICS 31 . 1 (2024) : 217-228 .
APA Lei, Pengju , Wei, Ying , Xiong, Yonglian , Zhang, Chao , Gong, Feng , Qian, Xing et al. Capacity degradation prediction model of LiMn0.6Fe0.4PO4/LiNi0.5Co0.2Mn0.3O2 composite cathode materials for lithium-ion batteries . | IONICS , 2024 , 31 (1) , 217-228 .
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Capacity degradation prediction model of LiMn0.6Fe0.4PO4/LiNi0.5Co0.2Mn0.3O2 composite cathode materials for lithium-ion batteries EI
期刊论文 | 2025 , 31 (1) , 217-228 | Ionics
Capacity degradation prediction model of LiMn0.6Fe0.4PO4/LiNi0.5Co0.2Mn0.3O2 composite cathode materials for lithium-ion batteries Scopus
期刊论文 | 2024 , 31 (1) , 217-228 | Ionics
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