Interfacial modulation of nano Li7La3Zr2O12 composite electrolytes prepared by solvent-free method

IF 10.7 1区工程技术 Q1 CHEMISTRY, PHYSICAL

Green Energy & Environment Pub Date : 2024-04-27 DOI:10.1016/j.gee.2024.04.009

Qigao Han, Yaqing Guo, Fuhe Wang, Xuechun Lou, Fengqian Wang, Jun Zhong, Jinqiao Du, Jie Tian, Weixin Zhang, Shun Tang, Shijie Cheng, Yuancheng Cao

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Abstract

Solid-state batteries (SSBs) with high safety are promising for the energy fields, but the development has long been limited by machinability and interfacial problems. Hence, supporting, Nano LLZO CSEs are prepared with a at . The contents of Nano LLZO particles enable the Nano LLZO CSEs to maintain good while exhibiting a wide electrochemical window of and a . The mean modulus reaches 4376 MPa. Benefiting from the , the Li|Li symmetric batteries based on the Nano LLZO CSEs show benign at the current densities of , , and . In addition, the Li|LiFePO (LFP) SSBs achieve favorable he specific capacity reaches at rate, with a capacity retention of about . In the further tests of the LiNiCoMnO (NCM811) cathodes with higher energy density, the Nano LLZO CSEs also demonstrate good compatibility: the specific capacities of NCM811-based SSBs reach at rate, while the capacity retention is over . Furthermore, the verify the and the potential for application, which have a desirable prospect.

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无溶剂法制备的纳米 Li7La3Zr2O12 复合电解质的界面调制

具有高安全性的固态电池（SSBs）在能源领域大有可为，但其发展长期以来一直受到可加工性和界面问题的限制。因此，在纳米 LLZO CSEs 的制备过程中，需要在......的条件下进行支持。纳米 LLZO 颗粒的含量使纳米 LLZO CSEs 保持良好的电化学性能，同时显示出宽广的电化学窗口，其平均模量达到 4376 兆帕。此外，基于纳米 LLZO CSE 的锂-锂对称电池在电流密度为、、和时显示出良好的性能。此外，锂-锂铁PO（LFP）SSB 的比容量达到了良好的速率，容量保持率约为。在对能量密度更高的镍钴锰酸锂（NCM811）阴极的进一步测试中，纳米 LLZO CSE 也表现出良好的兼容性：基于 NCM811 的 SSB 的比容量达到率，而容量保持率超过。此外，研究还验证了纳米 LLZO CSE 的性能和应用潜力，这些都具有令人向往的前景。

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

Green Energy & Environment Energy-Renewable Energy, Sustainability and the Environment

CiteScore

16.80

自引率

3.80%

发文量

332

审稿时长

12 days

期刊介绍： Green Energy & Environment (GEE) is an internationally recognized journal that undergoes a rigorous peer-review process. It focuses on interdisciplinary research related to green energy and the environment, covering a wide range of topics including biofuel and bioenergy, energy storage and networks, catalysis for sustainable processes, and materials for energy and the environment. GEE has a broad scope and encourages the submission of original and innovative research in both fundamental and engineering fields. Additionally, GEE serves as a platform for discussions, summaries, reviews, and previews of the impact of green energy on the eco-environment.