空气稳定层状氧化物电池阴极的设计原理

IF 17.3 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter Pub Date : 2024-11-06 DOI:10.1016/j.matt.2024.09.015

Peng Yu , Chun Fang , Jian Peng , Shixue Dou

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引用次数: 0

摘要

层状氧化物电池阴极商业应用的瓶颈在于空气敏感性造成的有害影响。然而，目前还不清楚空气中的哪些成分会决定层状氧化物阴极的容量衰减和结构退化。最近，Hu 及其同事在《科学》杂志上解决了这一困扰钠离子电池充分利用 40 多年的长期难题。他们证明了钠层状氧化物阴极在暴露于空气中时的酸性和氧化降解，并揭示了水与二氧化碳或氧气的共同作用会损害其稳定性。这一突破极大地推动了下一代钠离子电池的实际开发。

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Design principles for air stabilized layered oxide battery cathodes

The bottleneck in the commercial application of layered oxide battery cathodes is the harmful effects due to air sensitivity. However, it is not clear which components of the air are determinants of capacity decay and structural degradation of layered oxide cathodes. Recently in Science, Hu and colleagues addressed this long-standing challenge that has plagued the full utilization of sodium-ion batteries for over 40 years. They demonstrated the acid and oxidative degradations of sodium layered oxide cathodes upon exposure to air and revealed the stability is compromised by the combined effect of water with carbon dioxide or oxygen. This breakthrough significantly advances the practical development of next-generation sodium-ion batteries.

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来源期刊

Matter MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

26.30

自引率

2.60%

发文量

367

期刊介绍： Matter, a monthly journal affiliated with Cell, spans the broad field of materials science from nano to macro levels,covering fundamentals to applications. Embracing groundbreaking technologies,it includes full-length research articles,reviews, perspectives,previews, opinions, personnel stories, and general editorial content. Matter aims to be the primary resource for researchers in academia and industry, inspiring the next generation of materials scientists.