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在NMC811中强大的SEI形成的整合性添加剂设计

Xianyang Wu¹, Xinlin Li¹, Zhenzhen Yang¹

¹Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States.

ACS applied materials & interfaces

|January 7, 2026

概括

二氧化 (LiDFBOP) 添加剂显著提高了离子电池中的阳极性能. 它形成了一个稳定的固体电解质介相,改善了下一代储能容量的容量保留.

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
储能储能储能储能储能储能

背景情况:

阳极为离子电池 (LIB) 提供高容量,但电化学性能差.
功能添加剂是改善LIB阳极特性的一种具有成本效益的策略.

研究的目的:

系统地研究各种功能添加剂对LIB中的阳极性能的影响.
确定最有效的添加剂,以增强NMC811的电化学特性.

主要方法:

系统的电化学测试LiNi0.8Mn0.1Co0.1O2 (NMC811) 白色白色Si全电池与不同的添加剂.
使用里埃变换红外光谱 (FTIR),扫描电子显微镜 (SEM) 和X射线光电子光谱 (XPS) 进行了表征.

主要成果:

与其他添加剂相比,二氧化 (LiDFBOP) 显示出更高的性能.
DBOP使NMC811手持Si全细胞在300个周期内保持最佳容量.
描述显示LiDFBOP在阳极上形成一个更稳定的固体电解质介相 (SEI).

结论:

LiDFBOP是一种高效的添加剂,可提高LIBs中的阳极稳定性和性能.
LiDFBOP的有利分子结构整合了其他添加剂的有益特性,从而提高了SEI的形成.
DBOP在推进基于的离子电池技术方面显示出显著的前景.

关键词:

循环氧化酸盐添加剂循环氧化酸盐添加剂功能添加剂是一种功能添加剂.离子电池是一种离子电池.阳极是一种阳极.固体电解质相间阶段

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