Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2005-05-10
2005-05-10
Kalafut, Stephen (Department: 1745)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C429S231800, C429S231950, C429S128000
Reexamination Certificate
active
06890685
ABSTRACT:
This invention relates to an anode for a secondary battery capable of occluding and releasing lithium ions, the anode having a multi-layer structure comprising: a first layer containing carbon as a main component; and a second layer as a main component containing a lithium-occluding material film, the film capable of occluding lithium more than a theoretical lithium-occlusion capacity for carbon, as well as a secondary battery using the anode. This invention can provide a secondary battery with a substantially improved battery capacity in a range where the battery is actually used, while having a higher charge-discharge efficiency and good cycle properties.
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Iriyama Jiro
Miura Tamaki
Mori Mitsuhiro
Utsugi Koji
Yamamoto Hironori
Alejandro Raymond
Kalafut Stephen
NEC Corporation
Young & Thompson
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