高能量密度锂离子电芯设计开发策略

提高单体电芯能量密度是锂离子电池重要的发展方向.提高锂离子电芯能量密度的主要途径包括开发高比容量和高放电电压平台正极材料、高比容量负极材料、高适用性电解液、选择合适的电芯类型、开发具有高黏结性的黏结剂及优良的导电剂等.另外也可通过适当地改善正负极配方来提高活性材料的有效占比以达到提高电芯能量密度的目的.本文概括总结了高...

Design and Development Strategy of High Energy Density Lithium-Ion Cell

Increasing the energy density of single cell is an important development direction of lithium-ion battery. In summary, the main ways to improve the energy density of lithium-ion cell are development of high specific capacity and high discharge voltage platform cathode materials, high specific capacity anode materials, high applicability electrolyte, selection of appropriate cell types, development of binders with high adhesive properties and excellent conductive agents. In addition, the effective proportion of active materials can be increased by appropriately improving the formula of positive and negative electrodes to achieve the purpose of increasing the energy density of the cell. In this paper, the research directions of cathode materials and anode materials for high energy density lithium-ion cell, the research ideas of electrolyte, the reasonable selection of conductive agent and binder agent, the selection of cell structure and process route, were briefly summarized.