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US07485395B2 Negative active material for rechargeable lithium battery and method of preparing same 有权
可充电锂电池负极活性物质及其制备方法

Negative active material for rechargeable lithium battery and method of preparing same
Abstract:
A negative active material of a rechargeable lithium battery includes a crystalline carbon core having an intensity ratio Ra I(1360)/I(1580) of a Raman Spectroscopy peak intensity I(1360) at a (1360) plane to an Raman Spectroscopy peak intensity I(1580) at a (1580) plane of 0.01 to 0.45 and a shell with a turbostratic or half-onion ring structure coated on the core, the shell including crystalline micro-particles and a semi-crystalline carbon, the shell having an intensity ratio Ra I(1360)/I(1580) of a Raman Spectroscopy peak intensity I(1360) at a (1360) plane to a Raman Spectroscopy peak intensity I(1580) at a (1580) plane of 0.46 to 1.5.
Abstract(Chinese):

可再充电锂电池的负极活性物质包括在（1360）面上的拉曼光谱峰强度I（1360）与拉曼光谱峰强度的强度比Ra I（1360）/ I（1580）的结晶碳芯 I（1580）在0.01至0.45的（1580）平面上，并且具有涂覆在芯上的涡旋或半洋葱环结构的壳，壳包含结晶微粒和半结晶碳，壳具有强度 （1360）处的拉曼光谱峰强度I（1360）与（1580）平面处的拉曼光谱峰强度I（1580）的比值Ra I（1360）/ I（1580）为0.46〜1.5。

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