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US 5,672,445 AGranted
Organic elecrolyte secondary cell
AssigneeJapan Storage Battery Co., Ltd.
InventorsKazuhiro Nakamitsu, Hisashi Tukamoto, Shigeo Komatsu, Toshimichi Nakamura
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Abstract
The present invention provides a lithium secondary cell containing a positive electrode including a material which occludes and exudes lithium; a negative electrode containing a negative material including graphite; and a separator disposed between the positive and negative electrodes; wherein the quantity of lithium occluded in the negative material in a fully-charged state is less than 55% of the theoretical lithium occlusion capacity of the negative electrode.
Claims2
A lithium secondary cell comprising:
- a positive electrode including a material which occludes and exudes lithium;
- a negative electrode containing a negative material including graphite;
- and a separator disposed between said positive and negative electrodes;
- wherein the quantity of lithium occluded in said negative material in a fully-charged state is less than 55% of the theoretical lithium occlusion capacity of said negative electrode.
1 more element
Dependencies are inferred from the claim text.