CN108123120A - 一种锂电池用纳米硅酸铁锂/石墨烯正极材料及其制备方法 - Google Patents
一种锂电池用纳米硅酸铁锂/石墨烯正极材料及其制备方法 Download PDFInfo
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- CN108123120A CN108123120A CN201711280939.8A CN201711280939A CN108123120A CN 108123120 A CN108123120 A CN 108123120A CN 201711280939 A CN201711280939 A CN 201711280939A CN 108123120 A CN108123120 A CN 108123120A
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- H—ELECTRICITY
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- H—ELECTRICITY
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- H—ELECTRICITY
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
正极材料 | 锂离子扩散系数cm2s-1 | 首次放电比容量mAhg-1 | 循环后放电容量mAhg-1 | 循环50 次容量保持率% |
本发明 | 7.87×10-12 | 176.2 | 168.5 | 95.4 |
石墨烯/硅酸铁锂 | 5.39×10-12 | 116.2 | 104.1 | 89.7 |
样品 | 0.1C首次放电比容量mAhg-1 | 0.1C循环后放电容量mAhg-1 | 循环50 次容量保持率% | 0.5C首次放电比容量mAhg-1 | 1C首次放电比容量mAhg-1 |
实施例1 | 176.2 | 168.5 | 95.4 | 127.3 | 98.3 |
实施例2 | 178.6 | 169.2 | 94.9 | 129.4 | 99.1 |
实施例3 | 175.3 | 167.7 | 95.7 | 128.1 | 98.5 |
实施例4 | 176.9 | 168.8 | 95.4 | 127.6 | 98.2 |
实施例5 | 177.4 | 170.0 | 95.8 | 126.3 | 98.5 |
对比例1 | 146.2 | 128.1 | 87.6 | 104.6 | 82.4 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110993923A (zh) * | 2019-12-26 | 2020-04-10 | 惠州亿纬锂能股份有限公司 | 一种碳包覆辅助的钠钛双掺杂硅酸铁锂正极材料及其制备方法和用途 |
CN111710848A (zh) * | 2020-06-30 | 2020-09-25 | 贝特瑞新材料集团股份有限公司 | 硅氧复合负极材料及其制备方法和锂离子电池 |
CN113785419A (zh) * | 2019-03-06 | 2021-12-10 | 印第安纳大学理事会 | 用于锂离子电池的硅酸锂阴极 |
CN114361423A (zh) * | 2022-01-12 | 2022-04-15 | 天能帅福得能源股份有限公司 | 一种纳米晶铁硅合金基正极材料及其制备方法 |
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CN113785419A (zh) * | 2019-03-06 | 2021-12-10 | 印第安纳大学理事会 | 用于锂离子电池的硅酸锂阴极 |
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CN111710848A (zh) * | 2020-06-30 | 2020-09-25 | 贝特瑞新材料集团股份有限公司 | 硅氧复合负极材料及其制备方法和锂离子电池 |
CN114361423A (zh) * | 2022-01-12 | 2022-04-15 | 天能帅福得能源股份有限公司 | 一种纳米晶铁硅合金基正极材料及其制备方法 |
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