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SILICON OXIDE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE MATERIAL, MAKING METHOD, NEGATIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR
SILICON OXIDE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY NEGATIVE ELECTRODE MATERIAL, MAKING METHOD, NEGATIVE ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND ELECTROCHEMICAL CAPACITOR
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机译:非水电解质二次电池负极材料的氧化硅材料,制造方法,负极,锂离子二次电池和电化学电容器
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摘要
A silicon oxide material is obtained by cooling and precipitating a gaseous mixture of SiO gas and silicon-containing gas and has an oxygen content of 20-35 wt %. Using the silicon oxide material as a negative electrode active material, a nonaqueous electrolyte secondary battery is constructed that exhibits a high 1st cycle charge/discharge efficiency and improved cycle performance while maintaining the high battery capacity and low volume expansion of silicon oxide.
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