Polymer binders with high ion and electron conductivities are prepared by assembling ionic polymers (polyethylene oxide and polyethylenimine) onto the electrically conducting polymer poly(3,4‐ethylenedioxythiophene): poly(styrenesulfonate) chains. Crosslinking, chemical reductions, and electrostatics increase the modulus of the binders and maintain the integrity of the anode. The polymer binder shows lithium‐ion diffusivity and electron conductivity that are 14 and 90 times higher than those of the widely used carboxymethyl cellulose (with acetylene black) binder, respectively. The silicon anode with the polymer binder has a high reversible capacity of over 2000 mA h g⁻¹ after 500 cycles at a current density of 1.0 A g⁻¹ and maintains a superior capacity of 1500 mA h g⁻¹ at a high current density of 8.0 A g⁻¹.

中文翻译：

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先进锂离子电池中高性能硅阳极的导电聚合物粘合剂中增强的离子电导率

通过将离子型聚合物（聚环氧乙烷和聚乙烯亚胺）组装到导电聚合物聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）链上，可以制备具有高离子和电子电导率的聚合物粘合剂。交联，化学还原和静电会增加粘合剂的模量，并保持阳极的完整性。聚合物粘合剂的锂离子扩散率和电子电导率分别比广泛使用的羧甲基纤维素（含乙炔黑）粘合剂高14倍和90倍。带有聚合物粘合剂的硅阳极在500次循环后在1.0 A g ^-1的电流密度下具有2000 mA hg ^-1以上的高可逆容量，并保持1500 mA hg ^-1的优异容量在8.0 A g ^-1的高电流密度下。