发明公开
EP2600457A1 LITHIUM ION SECONDARY BATTERY AND PROCESS FOR PRODUCTION THEREOF 有权
维多利亚ZU IHRER HERSTELLUNG的LITHIUMONENSEKUNDÄRBATTERIE

LITHIUM ION SECONDARY BATTERY AND PROCESS FOR PRODUCTION THEREOF
摘要:
In a lithium ion secondary battery including a positive electrode, a separator, a negative electrode, and a package body, the negative electrode includes simple substance silicon as a negative electrode active material, and a negative electrode binder, and is doped with lithium, and the following formulas (1) and (2) are satisfied: 1.2 ≤ M a / M c ≤ 1.9 1.0 M a / M c + M Li 1.6
wherein an amount of lithium inserted into the negative electrode until the negative electrode reaches a potential of 0.02 V with respect to metal lithium is M a (a number of atoms), an amount of lithium released from the positive electrode until the positive electrode reaches a potential of 4.3 V with respect to metal lithium is M c (a number of atoms), and an amount of lithium with which the negative electrode is doped is M Li (a number of atoms).
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