【摘要】 以异佛尔酮二异氰酸酯（IPDI）、2,2-二羟甲基丙酸（DMPA）、盐酸多巴胺（DOP）为单体，通过两步聚氨酯反应制备了三元聚合物（IDD）。以商用聚偏氟乙烯（PVDF）粘接剂为对照组，表征并分析了IDD和PVDF以1:1质量比共混制备的IP粘接剂用于锂离子电池硅碳复合阳极的性能。结果表明：IP阳极在0.3 C下进行20次充放电，其放电比容量较PVDF阳极容量高50 m Ah·g^-1，且其在高电流密度下表现出较好的可逆容量。更多还原

【Abstract】 The ternary polymer（IDD）was prepared by a two-step polyurethane reaction using isophorone diisocyanate（IPDI）, 2,2-dihydroxymethylpropionic acid（DMPA）and dopamine hydrochloride（DOP）as monomers. The IP binder was prepared by blending IDD and PVDF in a 1:1 mass ratio, and its performance in silicon-carbon composite anodes for lithium-ion batteries was characterized and analyzed with a commercial polyvinylidene fluoride（PVDF）binder as a control group. The results showed that the specific discharge capacity of the IP anode was 50 mAh·g^-1higher than that of the PVDF anode after 20charge-discharge cycles at 0.3 C. And the IP anode exhibited a better reversible capacity at high current densities.更多还原