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在现场建造SiO阳极,通过从结合器中通过渐进式水解释放的碳素基来增强结合,以提供强大的存储

Weihua Wang^1,2, Siyi Jing¹, Wenyi Li¹

¹State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi, Xinjiang, 830017, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|December 13, 2025

概括

一种新的聚乙烯-高烯无水化物结合剂通过形成强键来提高一氧化物 (SiO) 阳极性能. 这种粘合剂为下一代电池提供了卓越的循环稳定性和容量保留.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
聚合物化学聚合物化学

背景情况:

对于一氧化 (SiO) 阳极的常规水性结合剂,由于弱键的存在,其粘合力有限.
自联和离子干扰阻碍了在传统的结合剂中有效利用极性功能组.
开发强大的结合剂对于提高SiO阳极的长期稳定性和性能至关重要.

研究的目的:

为了在SiO阳极中引入一种新型的粘合剂,聚乙烯-高烯无水化物 (P(EAMA)),以提高粘合力和稳定性.
调查持续的碳基释放和与SiO表面形成高密度键的机制.
与传统结合剂相比,评估基于P(EAMA) 的SiO阳极的电化学性能和循环稳定性.

主要方法:

聚乙烯-高烯无水化物 (P(EAMA)) 结合剂的合成和表征.
制造聚乙烯-高酸) /SiO (P(EAM) /SiO) 电极.
电化学测试,包括循环稳定性和容量保留测量.
与使用酸盐结合剂和完全化P的电极进行比较 (EAMA).

主要成果:

该P(EAMA) 结合剂经历逐步的水解,与SiO表面形成高密度的键,并抑制结合剂的自我结合.
由于丰富的键和弹性聚合物网络,P(EAM) /SiO电极表现出增强的机械强度和灵活性.
实现了卓越的循环稳定性 (856.2mA hg-1在2A g-1的350个循环后) 和全细胞兼容性 (100个循环后91.2%的容量保留).
这种新型结合剂的性能优于传统的酸盐和完全化P (EAMA) 结合剂.

结论:

提出的P(EAMA) 粘合剂策略有效地克服了SiO阳极常规粘合剂的局限性.
持续的功能组释放和强大的键导致极极性能和寿命显著提高.
这种方法有望推动基于的阳极在储能设备中的实际应用.

关键词:

这是一个SiO阳极.在现场形成键.聚乙烯 (乙烯) 化) 粘合剂渐进式的水解过程.强大的存储.

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