Negative electrode for non-aqueous electrolyte secondary...

Details Negative electrode for non-aqueous electrolyte secondary... Negative electrode for non-aqueous electrolyte secondary...

2005-09-14

2010-10-05

Michener, Jennifer K (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S122000, C429S233000

Reexamination Certificate

active

07807294

ABSTRACT:
A negative electrode for a non-aqueous electrolyte secondary battery, including: an active material layer capable of electrochemically absorbing and desorbing at least Li; and a current collector sheet that supports the active material layer thereon and that does not react with Li, wherein the active material layer includes a plurality of deposited films or sintered films supported on a surface of the current collector sheet, and each of the deposited films or sintered films is provided with at least one groove formed in a side surface thereof, the groove extending from a top surface side towards the current collector sheet side thereof. It is preferable that the plurality of deposited films or sintered films are arranged in a grid configuration, a staggered grid configuration or a honeycomb configuration on a surface of the current collector sheet. It is preferable that, in a discharged state, the plurality of deposited films or sintered films have an average height of not less than 1 μm and not more than 30 μm.

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Chinese Office Action issued in Chinese Patent Application No. CN 2005800267331, dated Aug. 1, 2008.

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