High areal capacity, long cycle life 4 V ceramic all-solid-state Li-ion batteries enabled by chloride solid electrolytes

IF 49.7 1区材料科学 Q1 ENERGY & FUELS

Nature Energy Pub Date : 2022-01-03 DOI:10.1038/s41560-021-00952-0

Laidong Zhou, Tong-Tong Zuo, Chun Yuen Kwok, Se Young Kim, Abdeljalil Assoud, Qiang Zhang, Jürgen Janek, Linda F. Nazar

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引用次数: 3

Abstract

All-solid-state Li batteries (ASSBs) employing inorganic solid electrolytes offer improved safety and are exciting candidates for next-generation energy storage. Herein, we report a family of lithium mixed-metal chlorospinels, Li2InxSc0.666−xCl4 (0 ≤ x ≤ 0.666), with high ionic conductivity (up to 2.0 mS cm−1) owing to a highly disordered Li-ion distribution, and low electronic conductivity (4.7 × 10−10 S cm−1), which are implemented for high-performance ASSBs. Owing to the excellent interfacial stability of the SE against uncoated high-voltage cathode materials, ASSBs utilizing LiCoO2 or LiNi0.85Co0.1Mn0.05O2 exhibit superior rate capability and long-term cycling (up to 4.8 V versus Li+/Li) compared to state-of-the-art ASSBs. In particular, the ASSB with LiNi0.85Co0.1Mn0.05O2 exhibits a long life of >3,000 cycles with 80% capacity retention at room temperature. High cathode loadings are also demonstrated in ASSBs with stable capacity retention of >4 mAh cm−2 (~190 mAh g−1). Intensive research is underway to develop solid-state electrolytes for rechargeable batteries. Here the authors report a family of mixed-metal halospinel electrolytes that exhibits promising properties for high-performance solid-state batteries.

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采用氯化物固体电解质的高单位容量、长循环寿命 4 V 陶瓷全固态锂离子电池

采用无机固体电解质的全固态锂电池（ASSBs）具有更高的安全性，是下一代储能技术的理想候选材料。在此，我们报告了一系列锂混合金属氯磷酸盐--Li2InxSc0.666-xCl4（0 ≤ x ≤ 0.666），由于锂离子分布高度无序而具有高离子电导率（高达 2.0 mS cm-1）和低电子电导率（4.7 × 10-10 S cm-1），可用于高性能 ASSB。与未涂层的高压阴极材料相比，SE 具有出色的界面稳定性，因此，与最先进的 ASSB 相比，使用 LiCoO2 或 LiNi0.85Co0.1Mn0.05O2 的 ASSB 具有更出色的速率能力和长期循环能力（与 Li+/Li 相比可高达 4.8 V）。特别是，使用 LiNi0.85Co0.1Mn0.05O2 的 ASSB 在室温下的寿命长达 3,000 次循环，容量保持率达 80%。高阴极负载在 ASSB 中也得到了证实，其稳定的容量保持率为 4 mAh cm-2（约 190 mAh g-1）。目前，开发可充电电池固态电解质的研究工作正在紧锣密鼓地进行。作者在此报告了一系列混合金属卤素电解质，这些电解质具有高性能固态电池的良好特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Energy Energy-Energy Engineering and Power Technology

CiteScore

75.10

自引率

1.10%

发文量

193

期刊介绍： Nature Energy is a monthly, online-only journal committed to showcasing the most impactful research on energy, covering everything from its generation and distribution to the societal implications of energy technologies and policies. With a focus on exploring all facets of the ongoing energy discourse, Nature Energy delves into topics such as energy generation, storage, distribution, management, and the societal impacts of energy technologies and policies. Emphasizing studies that push the boundaries of knowledge and contribute to the development of next-generation solutions, the journal serves as a platform for the exchange of ideas among stakeholders at the forefront of the energy sector. Maintaining the hallmark standards of the Nature brand, Nature Energy boasts a dedicated team of professional editors, a rigorous peer-review process, meticulous copy-editing and production, rapid publication times, and editorial independence. In addition to original research articles, Nature Energy also publishes a range of content types, including Comments, Perspectives, Reviews, News & Views, Features, and Correspondence, covering a diverse array of disciplines relevant to the field of energy.