A Highly Cross-Linked Polymeric Binder for High-Performance Silicon Negative Electrodes in Lithium Ion Batteries
A Highly Cross-Linked Polymeric Binder for High-Performance Silicon Negative Electrodes in Lithium Ion Batteries
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DOI：
10.1002/anie.201201568
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发表时间：
2012-01-01
影响因子：
16.6
通讯作者：
Cho, Jaephil
中科院分区：
文献类型：
--
作者：
Koo, Bonjae;Kim, Hyunjung;Cho, Jaephil
电极的支撑绷带：交联聚合物粘合剂（见图，红色）在循环过程中抑制硅负极的机械断裂。以聚丙烯酸和羧甲基纤维素钠为粘合剂的三维互联网络的纳米硅粉末在30℃下循环100次后具有超过2000 mAh g-1的高可逆容量，同时保持高容量和高电流密度。
A support bandage for electrodes: A cross-linked polymeric binder (see picture, red) inhibits mechanical fracture of silicon negative electrodes during cycling. Nanosized silicon powder with a 3D interconnected network of poly (acrylic acid) and sodium carboxymethylcellulose as binder exhibits high reversible capacity of over 2000 mAh g-1 after 100 cycles at 30 C while maintaining a high capacity and high current density.