Negative electrode for lithium ion secondary battery, method...

Details Negative electrode for lithium ion secondary battery, method... Negative electrode for lithium ion secondary battery, method...

2011-06-21

2011-06-21

Crepeau, Jonathan (Department: 1725)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S245000

Reexamination Certificate

active

07964307

ABSTRACT:
A negative electrode for a lithium ion secondary battery includes a current collector, an intermediate layer formed on a surface of the current collector, and an active material layer formed on the intermediate layer. The current collector includes a metal capable of being alloyed with silicon. The active material layer includes an active material including silicon. The intermediate layer includes silicon and oxygen. The intermediate layer prevents the metal capable of being alloyed with silicon from diffusing into the active material layer. The diffusion of the constituent element of the current collector into the active material layer is suppressed.

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