不同粘结剂对锂离子电池金属氧化物负极电化学性能的影响

Effect of Different Binders on the Electrochemical Performance of Metal Oxide Anode for Lithium-Ion Batteries.

作者信息

Wang Rui, Feng Lili, Yang Wenrong, Zhang Yinyin, Zhang Yanli, Bai Wei, Liu Bo, Zhang Wei, Chuan Yongming, Zheng Ziguang, Guan Hongjin

机构信息

School of Chemistry and Environment, Yunnan Minzu University, Kunming, 650500, China.

School of Life and Environmental Sciences, Deakin University, Geelong, VIC, 3217, Australia.

出版信息

Nanoscale Res Lett. 2017 Oct 30;12(1):575. doi: 10.1186/s11671-017-2348-6.

When testing the electrochemical performance of metal oxide anode for lithium-ion batteries (LIBs), binder played important role on the electrochemical performance. Which binder was more suitable for preparing transition metal oxides anodes of LIBs has not been systematically researched. Herein, five different binders such as polyvinylidene fluoride (PVDF) HSV900, PVDF 301F, PVDF Solvay5130, the mixture of styrene butadiene rubber and sodium carboxymethyl cellulose (SBR+CMC), and polyacrylonitrile (LA133) were studied to make anode electrodes (compared to the full battery). The electrochemical tests show that using SBR+CMC and LA133 binder which use water as solution were significantly better than PVDF. The SBR+CMC binder remarkably improve the bonding capacity, cycle stability, and rate performance of battery anode, and the capacity retention was about 87% after 50th cycle relative to the second cycle. SBR+CMC binder was more suitable for making transition metal oxides anodes of LIBs.

在测试锂离子电池（LIBs）金属氧化物负极的电化学性能时，粘结剂对电化学性能起着重要作用。哪种粘结剂更适合制备LIBs的过渡金属氧化物负极尚未得到系统研究。在此，研究了五种不同的粘结剂，如聚偏氟乙烯（PVDF）HSV900、PVDF 301F、PVDF索尔维5130、丁苯橡胶与羧甲基纤维素钠的混合物（SBR+CMC）以及聚丙烯腈（LA133），以制备负极电极（与全电池相比）。电化学测试表明，使用以水为溶剂的SBR+CMC和LA133粘结剂明显优于PVDF。SBR+CMC粘结剂显著提高了电池负极的粘结能力、循环稳定性和倍率性能，相对于第二个循环，第50个循环后的容量保持率约为87%。SBR+CMC粘结剂更适合制备LIBs的过渡金属氧化物负极。