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深度化碳材料用于全固态电池中大金属保护

Libo Song¹, Ruhong Li², Haotian Zhu²

¹Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|April 15, 2024

概括

研究人员开发了一种新的基外用于碳材料,以保护全固态金属电池中的金属电极. 这一策略增强了涂层和剥离,提高了电池的性能和可靠性.

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
储能储能储能储能储能储能

背景情况:

保护金属阳极对于全固态金属电池 (ASSLMB) 来说至关重要.
碳材料虽然在液体电解质中有效,但由于高电子导电性,在ASSLMB中可以降解固态电解质 (SE).
这种降解限制了ASSLMB中碳保护金属阳极的实际应用.

研究的目的:

开发一种新的策略,用于保护ASSLMB中的金属电极,使用定制的碳材料.
通过减轻SE分解和改善界面动力学来解决ASSLMB中碳材料的局限性.
创建一个新的路线图,以提高ASSLMB的可靠性和能量密度.

主要方法:

在不同碳材料 (如石墨碳纸,碳纳米管) 上形成基于的,富含的无序岩盐 (DRS) .
量身定制的碳材料的表征,以评估其性能,包括Li+扩散,性和电子导电性.
使用改性碳材料制造和测试ASSLMB,以评估界面动力学,涂/脱落行为以及SE稳定性.

主要成果:

基于的DRS外成功地改善了接口动力学和性,同时在深度化状态下降低了电子导电性.
量身定制的碳材料展示了均化的涂/剥离工艺,并抑制了SE分解.
采用这些改性碳材料的ASSLMB在各种条件下显著提高了性能.

结论:

建议在碳材料上在现场形成基于的DRS外的策略,为ASSLMBs的金属保护提供了一种有效的方法.
这种方法增强了接口特性,促进了稳定的涂/剥离,并防止了SE分解,为可靠的高能量密度ASSLMB铺平了道路.
该战略为开发下一代固态电池中金属阳极的先进保护策略提供了一个新的路线图.

关键词:

所有固态电池都是固态电池.碳酸性材料是一种碳酸性材料.树状的树状物无序的岩石盐外岩石盐外这是一个金属阳极.

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