发明名称 |
Lithium secondary batteries containing non-flammable quasi-solid electrolyte |
摘要 |
A rechargeable lithium cell comprising a cathode having a cathode active material, an anode having an anode active material, a porous separator electronically separating the anode and the cathode, a non-flammable quasi-solid electrolyte in contact with the cathode and the anode, wherein the electrolyte contains a lithium salt dissolved in a first organic liquid solvent with a concentration sufficiently high so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a flash point at least 20 degrees Celsius higher than the flash point of the first organic liquid solvent alone, a flash point higher than 150° C., or no flash point. This battery cell is non-flammable and safe, has a long cycle life, high capacity, and high energy density. |
申请公布号 |
US9368831(B2) |
申请公布日期 |
2016.06.14 |
申请号 |
US201313986814 |
申请日期 |
2013.06.10 |
申请人 |
Nanotek Instruments, Inc. |
发明人 |
He Hui;Jang Bor Z;Wang Yanbo;Zhamu Aruna |
分类号 |
H01M10/056;H01M10/052;H01M10/0569;H01M4/136;H01M4/58;H01M10/0525;H01M10/0568;H01M12/08;H01M4/02 |
主分类号 |
H01M10/056 |
代理机构 |
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代理人 |
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主权项 |
1. A rechargeable lithium cell comprising a cathode having a cathode active material, an anode having an anode active material, a porous separator electronically separating said anode and said cathode, a non-flammable quasi-solid electrolyte in contact with said cathode and said anode, wherein said electrolyte contains a lithium salt dissolved in a first organic liquid solvent with a concentration greater than 3.5 M so that said electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of the vapor pressure of said first organic solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of said first organic liquid solvent alone, a flash point higher than 150° C., or no flash point, wherein said rechargeable lithium cell does not include a lithium-sulfur cell and said electrolyte does not include an ionic liquid. |
地址 |
Dayton OH US |