通过LiOH催化水解聚丙烯腈(PAN),改变反应温度得到一系列不同结构组成的聚丙烯腈水解产物(HPAN),作为水性粘接剂用于SiOx负极材料。进行力学性能与电化学性能测试。结果表明:当反应温度为220℃时,HPAN-220粘接性能优异(剥离力达1.90N);HPAN-200在前100圈循环中表现最佳(90圈733mAh/g);在0.5C下200次循环后仍保持563mAh/g。
In this paper,polyacrylonitrile (PAN) was hydrolyzed by LiOH to prepare a series of polyacrylonitrile hydrolysates (HPAN) with different structural compositions by changing the reaction temperature,and they were used as aqueous binders for SiOx anode materials.Through the mechanical properties and electrochemical performance tests,it was found that when the reaction temperature was 220℃,the bonding performance of HPAN-220 was excellent (the peeling force reached 1.90N).HPAN-200 showed the best performance in the first 100 cycles (733mAh/g at 90 cycles).After 200 cycles at 0.5C,it still maintained 563mAh/g.
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