发明名称 MANUFACTURE OF LITHIUM SECONDARY CELL
摘要 PURPOSE:To remove cell expansion and improve cell characteristics, by making diameters of a lithium plate and an aluminum one, which are inserted into a negative electrode can when a cell being assembled, smaller than an inner diameter of the negative electrode can so that the cell expansion and internal short-circuit are prevented from occurring caused by expansion of the negative electrode during alloying time inside the cell. CONSTITUTION:Diameters of a lithium plate and aluminum one inserted into a negative electrode can, when a cell being assembled, are made to be 2-7% smaller than an internal diameter of the negative electrode can. A desirable degree, by which those diameters of the lithium plate and aluminum one are made to become smaller than the inner diameter of the negative electrode can, is 2-7%, or in particular 3-5%. Expansion of the negative electrode in its diameter direction during alloying time has a close relation with the amount of lithium in an alloy of lithium-aluminum at the negative electrode, that is, the less the amount of lithium becomes, the less the expansion in the diameter direction during the alloying time becomes, and vice versa.
申请公布号 JPS62123664(A) 申请公布日期 1987.06.04
申请号 JP19850264494 申请日期 1985.11.25
申请人 HITACHI MAXELL LTD 发明人 TANIGUCHI YASUYOSHI;IKENARI SHIGERU;SATO ATSUSHI;YOKOYAMA KENICHI;YOSHIMITSU KAZUMI
分类号 H01M4/1395;H01M10/05;H01M10/052;H01M10/0566 主分类号 H01M4/1395
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