Fundamentals of Electrolyte Design for Wide‐Temperature Lithium Metal Batteries

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(37)

Published: Aug. 3, 2023

Abstract Lithium metal‐based batteries (LMBs) have garnered significant attention due to their exceptional energy density and lightweight characteristics. However, the electrochemical performance of LMBs often falls short, particularly in extreme temperature conditions. To address these challenges, development electrolytes capable withstanding wide ranges has emerged as a highly promising strategy for enhancing operational capabilities LMB across diverse weather This comprehensive review aims explore degradation mechanisms wide‐temperature electrolytes, establishing fundamental understanding failure that impede at harsh temperatures. Essential properties required are elucidated, latest advancements electrolyte technologies tailored specifically all‐climate operations comprehensively discussed. Particular emphasis is placed on unique role solvation structure interfacial offers valuable insights proposes directions practical implementation LMBs, contributing significantly existing knowledge base while concurrently paving way developing robust rigors environments.

Language: Английский

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From Liquid to Solid-State Lithium Metal Batteries: Fundamental Issues and Recent Developments

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 16(1)

Published: Nov. 20, 2023

The widespread adoption of lithium-ion batteries has been driven by the proliferation portable electronic devices and electric vehicles, which have increasingly stringent energy density requirements. Lithium metal (LMBs), with their ultralow reduction potential high theoretical capacity, are widely regarded as most promising technical pathway for achieving batteries. In this review, we provide a comprehensive overview fundamental issues related to reactivity migrated interfaces in LMBs. Furthermore, propose improved strategies involving interface engineering, 3D current collector design, electrolyte optimization, separator modification, application alloyed anodes, external field regulation address these challenges. utilization solid-state electrolytes can significantly enhance safety LMBs represents only viable approach advancing them. This review also encompasses variation design transition from liquid solid electrolytes. Particularly noteworthy is that introduction SSEs will exacerbate differences electrochemical mechanical properties at interface, leading increased inhomogeneity-a critical factor contributing failure all-solid-state lithium Based on recent research works, perspective highlights status developing high-performance

Language: Английский

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Numerical study of thermal management of pouch lithium-ion battery based on composite liquid-cooled phase change materials with honeycomb structure

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 70, P. 108001 - 108001

Published: June 21, 2023

Language: Английский

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Dielectric Filler‐Induced Hybrid Interphase Enabling Robust Solid‐State Li Metal Batteries at High Areal Capacity

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(13)

Published: Dec. 17, 2023

The fillers in composite solid-state electrolyte are mainly responsible for the enhancement of conduction Li ions but barely regulate formation solid interphase (SEI). Herein, a unique filler dielectric NaNbO

Language: Английский

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Production of high-energy 6-Ah-level Li | |LiNi0.83Co0.11Mn0.06O2 multi-layer pouch cells via negative electrode protective layer coating strategy

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: June 19, 2023

Stable lithium metal negative electrodes are desirable to produce high-energy batteries. However, when practical testing conditions applied, is unstable during battery cycling. Here, we propose poly(2-hydroxyethyl acrylate-co-sodium benzenesulfonate) (PHS) as electrode protective layer. The PHS contains soft poly (2-hydroxyethyl acrylate) and poly(sodium p-styrene sulfonate), which improve flexibility, connection with the Cu current collector transport of Li ions. Transmission electron cryomicroscopy measurements reveal that induces formation a solid electrolyte interphase fluorinated rigid crystalline internal structure. Furthermore, theoretical calculations suggest -SO3- group sulfonate) promotes Li-ion motion towards interchain migration through cation-dipole interaction, thus, enabling uniform diffusion. Electrochemical | |PHS-coated-Cu coin cells demonstrate an average Coulombic efficiency 99.46% at 1 mA/cm2, 6 mAh/cm2 25 °C. Moreover, PHS-coated paired high-areal-capacity LiNi0.83Co0.11Mn0.06O2-based positive in multi-layer pouch cell configuration, delivers initial capacity 6.86 Ah (corresponding specific energy 489.7 Wh/kg) and, 91.1% discharge retention after 150 cycles 2.5 °C 172 kPa.

Language: Английский

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