发明名称 |
Use of expanded graphite in lithium/sulphur batteries |
摘要 |
The present invention relates to a solid composite for use in the cathode of a lithium-sulphur electric current producing cell wherein the solid composite comprises 1 to 75 wt.-% of expanded graphite, 25 to 99 wt.-% of sulphur, 0 to 50 wt.-% of one or more further conductive agents other than expanded graphite, and 0 to 50 wt.-% one or more binder, based on the total amount of the solid composite, a lithium-sulphur electric current producing cell comprising (i) a cathode comprising the solid composite, (ii) an anode and (iii) an electrolyte interposed between said cathode and said anode, and a process for preparing the solid composite comprising the steps (I) preparing a slurry comprising sulphur, expanded graphite, and optionally further components in a liquid medium by dispersing the sulphur, the expanded graphite, and optionally the further components in the liquid medium; (II) casting the slurry provided in step (I) on a substrate or placing the slurry provided in step (I) into a mold; and (III) removing some or all of the liquid medium from the slurry cast in step (II) to form a solid composite. |
申请公布号 |
EP2577779(B1) |
申请公布日期 |
2014.06.04 |
申请号 |
EP20110723423 |
申请日期 |
2011.05.26 |
申请人 |
BASF SE;SION POWER CORPORATION |
发明人 |
SCHMIDT, RÜDIGER;PANCHENKO, ALEXANDER;EWALD, BASTIAN;HANEFELD, PHILIP;IVANOVICI, SORIN;MÖHWALD, HELMUT;KOVALEV, IGOR |
分类号 |
H01M4/1397;H01M4/04;H01M4/136;H01M4/38;H01M4/62;H01M10/052 |
主分类号 |
H01M4/1397 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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