发明名称 |
Lithium-Selenium secondary batteries having non-flammable electrolyte |
摘要 |
A rechargeable lithium-selenium cell comprising a cathode having a cathode active material selected from Se or SexSy (x/y ratio=0.01 to 100), 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 lithium salt concentration sufficiently high (at least 2.0 M, more preferably >3.0 M) 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 |
US2015064575(A1) |
申请公布日期 |
2015.03.05 |
申请号 |
US201313987785 |
申请日期 |
2013.09.03 |
申请人 |
He Hui;Jang Bor Z.;Wang Yanbo;Zhamu Aruna |
发明人 |
He Hui;Jang Bor Z.;Wang Yanbo;Zhamu Aruna |
分类号 |
H01M10/0568;H01M10/052 |
主分类号 |
H01M10/0568 |
代理机构 |
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代理人 |
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主权项 |
1. A rechargeable lithium-selenium cell comprising a cathode having a cathode active material selected from Se or SexSy (x/y ratio=0.01 to 100), 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 lithium salt concentration sufficiently high 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. |
地址 |
Beavercreek OH US |