Electrochemically modified carbon material for lithium-ion battery
AssigneeNEC Corporation
InventorsQian CHENG, Noriyuki TAMURA, Kentaro NAKAHARA
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Abstract
The present invention provides an anode material for a lithium-ion battery comprising a carbon particle having a particle size of 5 μm to 30 μm, and including defective portions on a surface of the carbon particle, the defective portions being holes or pores formed by anodic oxidation of the carbon particle.
Claims21
An anode material for a lithium-ion battery comprising a carbon particle having a particle size of 5 μm to 30 μm, and including defective portions on a surface of the carbon particle, the defective portions being holes or pores formed by anodic oxidation of the carbon particle.
A method for preparing an anode material comprising:
- soaking carbon particles having a particle size of 5 μm to 30 μm into an electrolytic solution;
- anodically oxidizing the carbon particles to form defective portions on surfaces of the carbon particles;
- and
- collecting the carbon particles after the anodically oxidizing.
Dependencies are inferred from the claim text.