CN201410076113
CN103825049A
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摘要：一种锂离子电池耐高温电解液，包括电解质锂盐、有机溶剂、耐高温添加剂、成膜添加剂、循环稳定添加剂，电解质锂盐在有机溶剂中的浓度为0.5‐2mol/L，有机溶剂的组成及其体积份比为：高介电常数的有机基础溶剂5‐30、高沸点有机溶剂40‐65、低粘度有机溶剂5‐55，耐高温添加剂为四氟硼酸锂，二氟草酸硼酸锂、双丙二酸硼酸锂、双草酸硼酸锂、丙二酸草酸硼酸锂中的至少一种，其质量占电解液总质量的0.1%‐8%，成膜添加剂的质量占电解液总质量的0.2%‐4%，循环稳定添加剂的质量占电解液总质量的0.5%‐5%。本发明有效提高了锂离子电池的耐高温性能以及循环稳定性。 |
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| Abstract： The invention provides a high temperature-resistant electrolyte solution of a lithium ion battery. The high temperature-resistant electrolyte solution of the lithium ion battery comprises the raw materials of lithium electrolyte salt, an organic solvent, a high temperature-resistant additive, a film forming additive and a circulatory stability additive, wherein the concentration of the lithium electrolyte salt in the organic solvent is 0.5-2 mol/L; the organic solvent comprises the following components in parts by volume: 5-30 parts of a high-dielectric-constant organic base solvent, 40-65 parts of a high-boiling-point organic solvent, and 5-55 parts of a low-viscosity organic solvent; the high temperature-resistant additive is at least one of lithium tetrafluoroborate, lithium difluoroborate, lithium bis(malonato)borate, lithium bis(oxalate)borate and lithium malonato oxalate borate, the mass of the high temperature-resistant additive accounts for 0.1-8% of the total mass of the electrolyte solution, the mass of the film forming additive accounts for 0.2-4% of the total mass of the electrolyte solution, and the mass of the circulatory stability additive accounts for 0.5-5% of the total mass of the electrolyte solution. According to the invention, the high temperature resistance and circulatory stability of the lithium ion battery are effectively improved. | |
| 申请人： 东风商用车有限公司 | |
| Applicant： DONGFENG COMMERCIAL VEHICLE CO LTD | |
| 地址： 430056 湖北省武汉市汉阳区********(隐藏) | |
| 发明(设计)人： 陈果 刘立炳 | |
| Inventor： CHEN GUO; LIU LIBING | |
| 主分类号： H01M10/0567 | |
| 分类号： H01M10/0567 H01M10/0569 | |
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| 2017-10-27 | 授权 |
| 2014-06-25 | 实质审查的生效IPC(主分类):H01M 10/0567申请日:20140304 |
| 2014-05-28 | 公开 |
| 主权项 | 一种锂离子电池耐高温电解液，其原料组成包括电解质锂盐、有机溶剂以及耐高温添加剂，其特征在于：所述电解质锂盐在有机溶剂中的浓度为0.5‐2mol/L，所述耐高温添加剂的质量占电解液总质量的0.1%‐8%，且耐高温添加剂为四氟硼酸锂、二氟草酸硼酸锂、双丙二酸硼酸锂、双草酸硼酸锂、丙二酸草酸硼酸锂中的至少一种。 | ||||||||||||||||||
| 公开号 | 103825049A | ||||||||||||||||||
| 公开日 | 2014-05-28 | ||||||||||||||||||
| 专利代理机构 | 武汉荆楚联合知识产权代理有限公司 42215 | ||||||||||||||||||
| 代理人 | 王健 | ||||||||||||||||||
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| 国际申请 | |||||||||||||||||||
| 国际公布 | |||||||||||||||||||
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| 类型 | 阶段 | 文献号 | 公开日期 | 涉及权利要求项 | 相关页数 |
| Y | SEA | CN101504992A | 20090812 | 2-10 | 权利要求1，说明书第5页第13-16行，第7页第16行至说明书第8页第2行 |
| X | SEA | CN101504992A | 20090812 | 1，6-10 | |
| A | SEA | CN103268956A | 20130828 | 1-10 | 全文 |
| A | SEA | CN101447589A | 20090603 | 1-10 | 全文 |
| Y | SEA | CN101867064A | 20101020 | 2-10 | 说明书第36段 |
| Y | SEA | CN101504992A | 20090812 | ||
| A | SEA | CN103531843A | 20140122 | 1-10 | 全文 |
| Y | SEA | CN104067433A | 20140924 | 2-10 | 权利要求1-8，说明书第114-122，170-183段 |
| X | SEA | CN104067433A | 20140924 | 1,4-7,10 | |
| 类型 | 阶段 | 期刊文摘名称 | 作者 | 标题 | 涉及权利要求项 | 相关页数 |
| 类型 | 阶段 | 书名 | 作者 | 标题 | 涉及权利要求项 | 相关页数 |
