-
公开(公告)号:US5244757A
公开(公告)日:1993-09-14
申请号:US819224
申请日:1992-01-13
申请人: Norio Takami , Takahisa Ohasaki
发明人: Norio Takami , Takahisa Ohasaki
IPC分类号: H01M4/131 , H01M4/133 , H01M4/58 , H01M4/587 , H01M6/10 , H01M10/0525 , H01M10/0569 , H01M10/0587 , H01M10/36
CPC分类号: H01M4/587 , H01M10/05 , H01M10/0525 , H01M10/0569 , H01M10/0587 , H01M2300/0025 , H01M4/131 , H01M4/133 , H01M6/10 , Y02P70/54
摘要: A lithium secondary battery which comprises a vessel, a positive electrode, a negative electrode and an electrolyte. Both of the electrodes are placed in the vessel and the vessel is filled with the electrolyte. The negative electrode includes carbonaceous material spherical particles or carbonaceous fibers which absorb and discharge lithium ions. The carbonaceous material has a graphite-like layered structure part and a turbulence-layered structure part. Fine structures of the carbonaceous material spherical particles are arranged in point-orientation.
摘要翻译: 一种锂二次电池,包括:容器; 容纳在容器内的含有活性物质的正极; 容器内的锂离子传导性电解质,负极,配置在含有作为吸收和排出锂离子的活性物质的碳质球状粒子的容器中,含有石墨状层状结构部的碳质球状粒子和湍流分层 结构部分,碳质材料球形颗粒的精细结构以点取向布置。 还提供了一种用于制造锂二次电池的负极的碳质材料的方法,包括对球形颗粒或纤维进行碳化的热处理步骤,所述热处理步骤包括将中间相碳化碳化的步骤之一 球形颗粒或中间相沥青纤维在惰性气体或真空中在1200℃以上至2500℃的温度下进行。