发明申请
US20150311526A1 NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY CELL AND METHOD FOR MANUFACTURING SAME 有权
用于锂离子二次电池的负电极及其制造方法

NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY CELL AND METHOD FOR MANUFACTURING SAME
摘要:
A negative electrode for a lithium-ion secondary cell is configured in a novel manner, having a charge-discharge capacity, as determined per unit weight of the carbon used in the electrode, that is markedly higher than the theoretical capacity of graphite, and having a surface that is stabilized against repeated charging and discharging. A negative electrode for a lithium-ion secondary cell in which a carbon layer obtained by building up and growing a graphene sheet is formed on the surface of a substrate comprising an iron-based metal, the carbon layer being formed in a diagonal direction in relation to the substrate, and the carbon layer being used as the surface of the negative electrode. As measured using an argon laser having a wavelength of 532 nm, the Raman spectrum of the graphite that constitutes the carbon nanochip layer has a g/d ratio of 0.30-0.80.
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