Electrochemically and Thermally Stable Inorganics–Rich Solid Electrolyte Interphase for Robust Lithium Metal Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(1)

Published: Sept. 9, 2023

Abstract Severe dendrite growth and high‐level activity of the lithium metal anode lead to a short life span poor safety, seriously hindering practical applications batteries. With trisalt electrolyte design, an F‐/N‐containing inorganics–rich solid interphase on is constructed, which electrochemically thermally stable over long‐term cycles safety abuse conditions. As result, its Coulombic efficiency can be maintained 98.98% for 400 cycles. An 85.0% capacity retained coin‐type full cells with 3.14 mAh cm −2 LiNi 0.5 Co 0.2 Mn 0.3 O 2 cathode after 200 1.0 Ah pouch‐type 4.0 72 During thermal runaway tests cycled pouch cell, onset triggering temperatures were increased from 70.8 °C 117.4 100.6 153.1 °C, respectively, indicating greatly enhanced performance. This work gives novel insights into interface potentially paving way high‐energy‐density, long‐life‐span, safe

Language: Английский

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A review of solid-state lithium metal batteries through in-situ solidification

Science China Chemistry, Journal Year: 2023, Volume and Issue: 67(1), P. 67 - 86

Published: Nov. 2, 2023

Language: Английский

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Gel polymer electrolytes for rechargeable batteries toward wide-temperature applications

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(10), P. 5291 - 5337

Published: Jan. 1, 2024

Design principles, engineering strategies, challenges, and opportunities of gel polymer electrolytes for rechargeable batteries toward wide-temperature applications are thoroughly reviewed.

Language: Английский

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Safer solid‐state lithium metal batteries: Mechanisms and strategies

InfoMat, Journal Year: 2023, Volume and Issue: 6(2)

Published: Dec. 12, 2023

Abstract Solid‐state batteries that employ solid‐state electrolytes (SSEs) to replace routine liquid are considered be one of the most promising solutions for achieving high‐safety lithium metal batteries. SSEs with high mechanical modulus, thermal stability, and non‐flammability can not only inhibit growth dendrites but also enhance safety However, several internal materials/electrodes‐related hazards demonstrated by recent works show (SSLMBs) impenetrable. Therefore, understanding potential SSLMBs is critical their more secure widespread applications. In this contribution, we provide a comprehensive overview failure mechanism from materials devices. Also, strategies improve performance included view material enhancement, battery design, external management. Consequently, future directions further provided. We hope work shed bright insights into path constructing energy storage devices density safety. image

Language: Английский

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Great Challenges and New Paradigm of The In Situ Polymerization Technology Inside Lithium Batteries

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(17)

Published: Dec. 21, 2023

Abstract In situ polymerization technology is expected to empower the next generation high specific energy lithium batteries with safety and excellent cycling performance. Nevertheless, large‐scale commercial applications of most reported in polymer electrolytes are still full challenges. Owing severe parasitic reactions caused by residual monomers, additional initiators oligomers, using often demonstrate limited capacity, poor performance, insufficient rate capability. However, this issue has not received adequate attention previous reports. Furthermore, design evaluation lack effective guidance unified standards. Herein, development history systematically reviewed critically disclose great Then, from aspects initiators, separators, manufacturing technologies, cycle life evaluation, unprecedentedly a new paradigm provided for upgrading inside batteries. It hoped novel will prompt much more insightful studies, expediting commercialization

Language: Английский

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Synergetic regulation of SEI mechanics and crystallographic orientation for stable lithium metal pouch cells

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: May 25, 2024

The advancement of Li-metal batteries is significantly impeded by the presence unstable solid electrolyte interphase and Li dendrites upon cycling. Herein, we present an innovative approach to address these issues through synergetic regulation mechanics crystallography using yttrium fluoride/polymethyl methacrylate composite layer. Specifically, demonstrate in-situ generation Y-doped lithium metal reaction layer with metal, which reduces surface energy (200) plane, tunes preferential crystallographic orientation plane from conventional (110) during plating. These changes effectively passivate thereby reducing undesired side reactions between electrolytes 4 times. Meanwhile, suitable modulus (~1.02 GPa) can enhance mechanical stability maintain structural SEI. Consequently, a 4.2 Ah pouch cell high density 468 Wh kg

Language: Английский

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Molecule Crowding Strategy in Polymer Electrolytes Inducing Stable Interfaces for All‐Solid‐State Lithium Batteries

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(31)

Published: June 5, 2024

All-solid-state lithium batteries with polymer electrolytes suffer from electrolyte decomposition and dendrites because of the unstable electrode/electrolyte interfaces. Herein, a molecule crowding strategy is proposed to modulate Li

Language: Английский

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Tailoring a multi-system adaptable gel polymer electrolyte for the realization of carbonate ester and ether-based Li-SPAN batteries

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(7), P. 2576 - 2587

Published: Jan. 1, 2024

The development of PFGPE is conducive to achieving excellent performance for carbonate ester and ether based Li-SPAN batteries.

Language: Английский

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Interface‐Compatible Gel‐Polymer Electrolyte Enabled by NaF‐Solubility‐Regulation toward All‐Climate Solid‐State Sodium Batteries

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(18)

Published: March 11, 2024

Abstract Gel‐polymer electrolyte (GPE) is a pragmatic choice for high‐safety sodium batteries but still plagued by interfacial compatibility with both cathode and anode simultaneously. Here, salt‐in‐polymer fibers NaF salt inlaid in polylactide (PLA) fiber network was fabricated via electrospinning subsequent situ forming gel‐polymer liquid electrolytes. The obtained PLA‐NaF GPE achieves high ion conductivity (2.50×10 −3 S cm −1 ) large Na + transference number (0.75) at ambient temperature. Notably, the dissolution of occupies solvents leading to concentrated‐electrolyte environment, which facilitates aggregates increased anionic coordination (anion/Na >1). Aggregates higher HOMO realize preferential oxidation on so that inorganic‐rich stable CEI covers cathode’ surface, preventing particles’ breakage showing good different cathodes (Na 3 V 2 (PO 4 , 2+2x Fe 2‐x (SO 0.72 Ni 0.32 Mn 0.68 O NaTi ). While, passivated induced lower LUMO aggregates, surface tension between interface, dendrites‐free anode. As result, assembled || cells display excellent electrochemical performance all‐climate conditions.

Language: Английский

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High-voltage polymer electrolytes: Challenges and progress

Energy storage materials, Journal Year: 2023, Volume and Issue: 63, P. 102970 - 102970

Published: Sept. 14, 2023

Language: Английский

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