To　effectively　address　the　issues　of　low　utilization　and　challenging　cost　recovery　in　distributed　energy　storage,　it　is　crucial　to　study　trading　mechanisms　tailored　to　distributed　energy　storage.　The　business　model　of　the　sharing　economy　applied　to　the　energy　storage　field　has　potential,　and　many　existing　methods　have　implemented　diverse　energy　sharing　transactions　using　blockchain　technology.　However,　these　studies　have　not　adequately　considered　the　convenience　of　energy　storage　operations.　To　tackle　this　problem,　this　paper　views　energy　storage　as　a　physical　device　and　designs　a　more　user-friendly　coupled　charging　and　discharging　sharing　mechanism.　This　approach　reduces　transaction　risks　while　enhancing　the　control　rights　of　energy　storage　participants.　First,　a　business　model　for　energy　storage　sharing　was　explored,　and　a　sharing　mechanism　that　separates　ownership　and　usage　rights　was　studied.　The　trading　process,　application　scenarios,　pricing　mechanisms,　credit　management,　settlement　mechanisms,　and　rolling　trading　models　supported　by　blockchain　technology　were　investigated.　An　optimization　model　for　energy　storage　sharing　that　couples　charging　and　discharging　rights　was　established.　Then,　a　decentralized　and　privacy-focused　blockchain　platform　was　built.　Smart　contracts　were　used　to　facilitate　the　transfer　of　energy　usage　rights　and　control　of　charging　and　discharging.　This　platform　ensures　the　sustainability　of　energy　storage　systems　while　highlighting　their　role　as　leaseable　physical　assets.　By　simulating　scenarios　where　distributed　energy　sources　and　electricity　consumers　participate　in　energy　storage　sharing　for　deviation　handling,　we　assess　the　feasibility　of　the　energy　storage　sharing　market.　From　the　perspective　of　energy　storage,　profitability　depends　on　initial　investment　and　maintenance　costs,　as　well　as　equipment　parameters.　Under　current　cost　levels,　energy　storage　systems　with　power-to-capacity　ratios　exceeding　1/4　can　profit　in　this　market.　From　the　perspective　of　energy　storage　participants,　if　market　prices　for　distributed　electricity　transactions　are　higher　than　0.74　¥/(kW∙h),　and　the　price　difference　between　peak　and　off-peak　electricity　sales　is　greater　than　0.4　¥/(kW∙h),　market　participants　can　gain　2.4%　to　14.3%　more　profit　through　energy　storage　sharing　than　through　grid　backup　mode.　Conversely,　when　market　prices　are　lower　and　price　differences　are　smaller,　participants　may　earn　0.71%　to　10.69%　less　through　energy　storage　sharing.　Thus,　under　specific　market　conditions,　distributed　energy　storage　sharing　can　create　mutually　beneficial　transactions.　Additionally,　blockchain　technology　supports　an　automated　end-to-end　trading　process,　including　transaction　submission,　matching,　energy　usage　rights　transfer,　on-chain　data　storage,　and　real-time　settlement.　The　following　conclusions　can　be　drawn　from　the　simulation　analysis:　(1)　The　profitability　of　energy　storage　participation　in　the　sharing　market　is　subject　to　the　constraints　of　initial　construction,　operational　costs,　and　the　parameters　of　energy　storage　devices.　Technological　improvements,　coupled　with　cost　reductions,　are　expected　to　promote　the　development　of　the　energy　storage　sharing　market.　(2)Market　conditions　characterized　by　significant　fluctuations　in　grid　electricity　prices　and　high　levels　of　trading　prices　for　distributed　electricity　are　more　likely　to　attract　market　participants　to　engage　in　energy　storage　sharing　transactions.　(3)Blockchain　technology　ensures　transparency　and　traceability　in　energy　storage　sharing　transactions　while　enhancing　the　trust　of　energy　storage　sharing　participants　in　the　platform.　This　provides　robust　technical　support　for　the　further　implementation　and　promotion　of　distributed　energy　storage　sharing　transactions.　©　2024　China　Machine　Press.　All　rights　reserved.