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The gradual development of new energy power lithium batteries towards high energy density has driven the trends development of high performance, such as ultrathin, low profile and high mechanical properties of anode copper foil collectors. As one of the key auxiliary materials for lithium batteries, the quality and properties of electrolytic copper foil for lithium batteries play a key role in battery performance. Therefore, the precise regulation of performance and directional modification of structure of the copper foil are of great significance to improving the performance of lithium batteries. This paper introduces the principle and process of copper electrodeposition and the current copper foil market from the perspective of lithium battery copper foil electrodeposition technology, summaries the mechanism of the influence of physical, chemical and surface properties of lithium copper foil on the electrochemical performance of lithium batteries, and provides a reference for the subsequent precise regulation of copper foil performance. It also further illustrates two comprehensive methods to improve the performance of lithium copper foil and lithium battery performance, namely raw foil process parameter optimization and modification treatment, and analyses the current status and development of copper foil structural modification. Finally, this paper illustrates the problems of electrolytic copper foil as lithium battery anode collectors, and looks forward to its future development trends, which guides the development and application of high-performance copper foil for lithium batteries. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.
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材料导报
ISSN: 1005-023X
Year: 2024
Issue: 10
Volume: 38
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0