A Universal Design of Lithium Anode via Dynamic Stability Strategy for Practical All-solid-state Batteries

IF 16.1 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Tao Deng, Changhong Wang, Hongli Wan, Aimin Li, Xinzi He, Zeyi Wang, Longsheng Cao, Xiulin Fan, Chunsheng Wang
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引用次数: 0

Abstract

All-solid-state Li-metal battery (ASSLB) chemistry with thin solid-state electrolyte (SSE) membranes features high energy density and intrinsic safety but suffers from severe dendrite formation and poor interface contact during cycling, which hampers the practical application of rechargeable ASSLB. Here, we propose a universal design of thin Li-metal anode (LMA) via a dynamic stability strategy to address these issues. The ultra-thin LMA (20 μm) is in-situ constructed with uniform highly Li-ion conductive solid-electrolyte interphase and composite-polymer interphase (CPI) via electroplating process. As a result, the passivation layer with poor Li-ion conduction on Li anode can be dissolved and small surface resistance can be achieved due to the good compatibility of CPI to SSEs. The cycling of Li symmetric cell with Li6PS5Cl thin film electrolyte (< 100 μm) shows a high critical current density of > 2.0 mA cm-2 with excellent cycling stability at 1.0 mA cm-2. The ASSLBs paring with Ni-rich LiNi0.6Mn0.2Co0.2O2 cathode demonstrated the feasibility of engineered LMA design by presenting good rate capability from 0.1C to 1.0 C at room temperature, as well as long-term cycling stability (81% retention after 100 cycles). This work represents a general pathway to make thin dendrite-free LMA available for high-energy-density ASSLBs.
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来源期刊
CiteScore
26.60
自引率
6.60%
发文量
3549
审稿时长
1.5 months
期刊介绍: Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.
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