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相关实验视频

Updated: Jan 7, 2026

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

有效的离子潜力引导的双梯度结构工程用于消耗的LiCoO₂升级循环.

Qiaoyi Yan¹, Zhengzheng Liu², Feng Wu^1,2,3,4

¹Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China.

Advanced materials (Deerfield Beach, Fla.)

|December 24, 2025

概括

此摘要是机器生成的。

本研究介绍了降解的氧化 (LiCoO₂) 阴极的上循环方法,将其转化为高压材料. 这种新的方法创建了一个双梯度结构,大大提高了电池的性能和可持续性.

关键词:

美国的移民障碍.双梯度结构的结构是双梯度的.有效的离子潜力.高价值的上循环利用.使用过的氧化和氧化物.

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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
可持续化学可持续化学

背景情况:

回收降解的氧化 (LiCoO) 对于可持续的离子电池生产至关重要.
现有的方法往往无法恢复使用过的LiCoO2阴极的高电化学性能.

研究的目的:

为降解的LiCoO₂阴极制定一个升级回收策略.
为了提高性能,设计一个组成和结构的双梯度结构.
为了利用有效的离子潜力 (EIP, Φ*) 作为 LiCoO₂格子中剂行为的描述符.

主要方法:

使用以有效离子潜力 (EIP, Φ*) 为指导的剂进行降解LiCoO₂的上循环.
在正极材料中构建双梯度组成和结构特征.
调查空缺职位在结构工程的花费LiCoO₂中的作用.
使用多尺度表征和理论计算.

主要成果:

实现了一个组成梯度,在这种梯度下,低Φ*的剂扩散到散体中,而高Φ*的剂保持在表面附近.
设计了一个结构性过渡,从一个无序的表面到一个有序的分层散装结构.
与商业同行相比,在高切断电位 (4.6 和 4.65 V) 时表现出优越的电化学性能.
揭示了消耗的LiCoO₂中的散装和表面空缺对于梯度形成和结构稳定性至关重要.

结论:

提议的上循环方法有效地将降解的LiCoO₂转化为高性能阴极.
由EIP指导并受到空缺职位的影响的双梯度结构增强了电化学稳定性和性能.
这种方法为回收离子电池阴极材料提供了一个可持续的途径.