Improved electrochemical performance of sulphur cathodes with acylated gelatine as a binder
Improved electrochemical performance of sulphur cathodes with acylated gelatine as a binder
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以酰化明胶为粘合剂改善硫正极的电化学性能
DOI：
10.1039/c5ra07325a
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发表时间：
2015-05
期刊：
影响因子：
3.9
通讯作者：
Yaqin Huang
中科院分区：
文献类型：
--
作者：
Hongyuan Shao;Chengming Li;Naiqiang Liu;Weikun Wang;Hao Zhang;Xuhui Zhao;Yaqin Huang
酰化明胶已成功地用于Li/S电池的硫阴极。结果表明，由于羰基对多硫化物有很强的亲合力，酰化明胶可以有效地抑制多硫化物在电解液中的溶解。同时它也是正极材料的强分散剂和粘合剂。循环伏安和电化学阻抗测试表明，与明胶-硫阴极相比，所制备的阴极具有更小的极化和更低的转移电阻。在0.1和0.5C倍率下循环100次后，所制备的阴极的初始容量和可逆容量均比相同条件下的明胶粘合剂-硫阴极高得多。研究结果表明，酰化明胶是一种很有前途的粘结剂，可以改善Li-S的性能，有助于其未来的发展。
Acylated gelatine has been successfully used in the sulphur cathode for a Li/S battery. The results indicated that acylated gelatine could effectively constrain the resolution of polysulphide into the electrolyte because of carbonyl groups' strong affinity for polysulphide. Meanwhile it also served as a strong dispersion and adhesion agent for the cathode materials. Cyclic voltammograms and electrochemical impedance spectroscopy experiments showed that the prepared cathodes have less polarization and lower transfer resistance compared to gelatine binder-sulphur cathode. The prepared cathode exhibited a much higher initial and reversible capacity after 100 cycles at rates of 0.1 and 0.5 C than that of gelatine binder-sulphur cathode under the same condition. Our findings have shown that acylated gelatine is a promising binder to improve Li–S performance and helpful for its future development.
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影响因子：
17.6
作者：
Huang, Jia-Qi;Liu, Xiao-Fei;Wei, Fei
通讯作者：
Wei, Fei
影响因子：
6.6
作者：
You Wang;Yaqin Huang;Wei-kun Wang;Chongjun Huang;Zhongbao Yu;Hao Zhang;Jing-Wei Sun;An-bang Wang-An-bang
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影响因子：
19
作者：
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通讯作者：
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影响因子：
17.1
作者：
Zhou, Guangmin;Yin, Li-Chang;Cheng, Hui-Ming
通讯作者：
Cheng, Hui-Ming
影响因子：
3.9
作者：
Qinqin Wang;Wei-kun Wang;Yaqin Huang;Feng Wang;Hao Zhang;Zhongbao Yu;An-bang Wang;Keguo Yuan
通讯作者：
Qinqin Wang;Wei-kun Wang;Yaqin Huang;Feng Wang;Hao Zhang;Zhongbao Yu;An-bang Wang;Keguo Yuan