WO2016008455A3 - 一种多元复合负极材料、其制备方法及包含其的锂离子电池 - Google Patents

一种多元复合负极材料、其制备方法及包含其的锂离子电池 Download PDF

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WO2016008455A3
WO2016008455A3 PCT/CN2015/087266 CN2015087266W WO2016008455A3 WO 2016008455 A3 WO2016008455 A3 WO 2016008455A3 CN 2015087266 W CN2015087266 W CN 2015087266W WO 2016008455 A3 WO2016008455 A3 WO 2016008455A3
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negative electrodes
composite material
element composite
shell
lithium
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PCT/CN2015/087266
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French (fr)
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WO2016008455A2 (zh
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岳敏
何鹏
李胜
任建国
黄友元
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深圳市贝特瑞新能源材料股份有限公司
惠州市贝特瑞新材料科技有限公司
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Priority to US15/326,829 priority Critical patent/US10522834B2/en
Priority to JP2017502234A priority patent/JP6563477B2/ja
Publication of WO2016008455A2 publication Critical patent/WO2016008455A2/zh
Publication of WO2016008455A3 publication Critical patent/WO2016008455A3/zh

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Abstract

一种多元复合负极材料及其制备方法，以及使用该负极材料的锂离子电池。所述锂离子电池用多元复合负极材料为多壳层核-壳结构，内核为石墨与涂覆在石墨表面的纳米活性物质构成，所述内核的外层依次为：第一壳层为导电碳材料，第二壳层为纳米活性物质，第三壳层为导电碳材料包覆层。本发明多元复合负极材料采用涂覆处理技术、表面复合改性与包覆改性技术相结合的方式成功制备了具有多壳层结构的核-壳多元复合负极材料，实现了纳米活性物质的高负载与高分散，从而大大提升材料比容量、循环性能与首次效率。此外本发明多元复合负极材料压实密度高、加工性能良好；该负极材料制备工艺简单，原料成本低廉，环境友好无污染。
PCT/CN2015/087266 2014-07-17 2015-08-17 一种多元复合负极材料、其制备方法及包含其的锂离子电池 WO2016008455A2 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/326,829 US10522834B2 (en) 2014-07-17 2015-08-17 Multiple-element composite material for anodes, preparation method therefor, and lithium-ion battery having same
JP2017502234A JP6563477B2 (ja) 2014-07-17 2015-08-17 多元系複合負極材料、その製造方法及びそれを含むリチウムイオン電池

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CN201410340471.7A CN104091934B (zh) 2014-07-17 2014-07-17 一种多元复合负极材料、其制备方法及包含其的锂离子电池
CN201410340471.7 2014-07-17

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