B. Trofimov, L. Parshina, N. Gusarova, N. Ivanova, G. Myachina, I. Kovalev, T. Skotheim
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引用次数: 9
摘要
硫与5-乙烯基双环[2.2.1]庚-2-烯或三环[5.2.1.0 2.6]癸-3,8-二烯(硫:二烯比=20:1)在170 v°C下催化共聚，或在1,4-重氮双环[2.2.2]辛烷或N,N,N,N-四甲基乙二胺与CoCl 2- 6h2o或Cu(acac) 2结合的情况下，在两个二烯双键上形成部分交联共聚物，稳定至200 v°C (DSC/TGA)。用上述共聚物制成的阴极在模型锂扣式电池中，在第一次和第50次循环时的比放电容量分别为670-970和300-330 v mA - h - g - m1。
Sulfur-rich copolymers of sulfur with 5-vinylbicyclo[2.2.1]hept-2-ene and tricyclo[5.2.1.0 2.6]deca-3,8-diene as prospective cathode materials for lithium cells
Catalytic copolymerization of sulfur with 5-vinylbicyclo[2.2.1]hept-2-ene or tricyclo[5.2.1.0 2.6 ]deca-3,8-diene (sulfur:diene ratio=20:1) at 170 v °C in bulk or decalin in the presence of 1,4-diazabicyclo[2.2.2]octane or N,N,N,N-tetramethylethylenediamine in combination with CoCl 2 - 6H 2 O or Cu(acac) 2 occurs at two dienic double bonds to form partially cross-linked copolymers stable up to 200 v °C (DSC/TGA). Preliminary evaluation of the specific discharge capacity of cathodes made using the above copolymers in model lithium button cells gives 670-970 and 300-330 v mA - h - g m 1 in the 1st and 50th cycles, respectively.
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