Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104177 - 104177
Published: March 1, 2025
Language: Английский
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
Citations
24
Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 100, P. 113497 - 113497
Published: Aug. 31, 2024
Language: Английский
Citations
20
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(19)
Published: Feb. 23, 2024
Abstract In solid‐state lithium metal batteries (SSLMBs), the inhomogeneous electrolyte‐electrode interphase layer aggravates interfacial stability, leading to discontinuous ion/charge transport and continuous degradation of electrolyte. Herein, we constructed an anion‐modulated ionic conductor (AMIC) that enables in situ construction electrolyte/electrode interphases for high‐voltage SSLMBs by exploiting conformational transitions under multiple interactions between polymer salt anions. Anions modulate decomposition behavior supramolecular poly (vinylene carbonate) (PVC) at electrode interface changing spatial conformation chains, which further enhances ion stabilizes morphology. addition, AMIC weakens “Li + ‐solvation” increases Li vehicle sites, thereby enhancing lithium‐ion number ( t =~0.67). Consequently, || LiNi 0.8 Co 0.1 Mn O 2 cell maintains about 85 % capacity retention Coulombic efficiency >99.8 200 cycles a charge cut‐off voltage 4.5 V. This study provides new understanding anions regulating chain segment electrolyte (SPE) highlights importance environment phases conduction.
Language: Английский
Citations
18
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown
Published: July 15, 2024
Abstract Lithium iron phosphate (LFP)/graphite batteries have long dominated the energy storage battery market and are anticipated to become dominant technology in global power market. However, poor fast‐charging capability low‐temperature performance of LFP/graphite seriously hinder their further spread. These limitations strongly associated with interfacial lithium (Li)‐ion transport. Here we report a wide‐temperature‐range ester‐based electrolyte that exhibits high ionic conductivity, fast kinetics excellent film‐forming ability by regulating anion chemistry Li salt. The barrier is quantitatively unraveled employing three‐electrode system distribution relaxation time technique. superior role proposed preventing 0 plating sustaining homogeneous stable interphases also systematically investigated. cells exhibit rechargeability an ultrawide temperature range −80 °C 80 outstanding without compromising lifespan. Specially, practical pouch achieve 80.2 % capacity retention after 1200 cycles (2 C) 10‐min charge 89 (5 at 25 provide reliable even °C.
Language: Английский
Citations
14
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(31)
Published: May 21, 2024
Crosstalk, the exchange of chemical species between battery electrodes, significantly accelerates thermal runaway (TR) lithium-ion batteries. To date, understanding their main mechanisms has centered on single-directional crosstalk oxygen (O
Language: Английский
Citations
11
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 486, P. 150354 - 150354
Published: March 11, 2024
Language: Английский
Citations
10
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: June 10, 2024
Abstract The development of lithium–metal batteries (LMBs) has emerged as a mainstream approach for achieving high‐energy‐density energy storage devices. stability electrochemical interfaces plays an essential role in realizing stable and long‐life LMBs. Despite extensive comprehensive research on the lithium anode interface, there is limited focus cathode particularly regarding high‐voltage transition metal oxide materials. In this review, challenges associated with developing materials are first discussed. Characterization techniques understanding composition structure cathode–electrolyte interphase (CEI) then introduced. Subsequently, recent developments electrolyte design interface modification constructing CEI summarized. Finally, perspectives future trends This review can offer valuable guidance designing CEI, pushing forward
Language: Английский
Citations
10
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Oct. 14, 2024
Rechargeable batteries with high durability over wide temperature is needed in aerospace and submarine fields. Unfortunately, Current battery technologies suffer from limited operating temperatures due to the rapid performance decay at extreme temperatures. A major challenge for wide-temperature electrolyte design lies restricting parasitic reactions elevated while improving reaction kinetics low Here, we demonstrate a temperature-adaptive by regulating dipole-dipole interactions various simultaneously address issues both subzero This approach prevents degradation endowing it ability undergo adaptive changes as varies. Such favors form solvation structure thermal stability rising transits one that salt precipitation lower ensures stably within range of ‒60 −55 °C. opens an avenue design, highlighting significance structures. High instability sluggishness electrolytes pose significant barriers towards sodium-ion batteries. authors report
Language: Английский
Citations
9
Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(19)
Published: Feb. 23, 2024
Abstract In solid‐state lithium metal batteries (SSLMBs), the inhomogeneous electrolyte‐electrode interphase layer aggravates interfacial stability, leading to discontinuous ion/charge transport and continuous degradation of electrolyte. Herein, we constructed an anion‐modulated ionic conductor (AMIC) that enables in situ construction electrolyte/electrode interphases for high‐voltage SSLMBs by exploiting conformational transitions under multiple interactions between polymer salt anions. Anions modulate decomposition behavior supramolecular poly (vinylene carbonate) (PVC) at electrode interface changing spatial conformation chains, which further enhances ion stabilizes morphology. addition, AMIC weakens “Li + ‐solvation” increases Li vehicle sites, thereby enhancing lithium‐ion number ( t =~0.67). Consequently, || LiNi 0.8 Co 0.1 Mn O 2 cell maintains about 85 % capacity retention Coulombic efficiency >99.8 200 cycles a charge cut‐off voltage 4.5 V. This study provides new understanding anions regulating chain segment electrolyte (SPE) highlights importance environment phases conduction.
Language: Английский
Citations
7
Advanced Science, Journal Year: 2024, Volume and Issue: 11(22)
Published: April 6, 2024
Abstract With the electrochemical performance of batteries approaching bottleneck gradually, it is increasingly urgent to solve safety issue. Herein, all‐in‐one strategy ingeniously developed design smart, safe, and simple (3S) practical pouch‐type LiNi 0.8 Co 0.1 Mn O 2 ||Graphite@SiO (NCM811||Gr@SiO) cell, taking full advantage liquid solid‐state electrolytes. Even under harsh thermal abuse high voltage condition (100 °C, 3–4.5 V), 3S NCM811||Gr@SiO cell can present superior capacity retention 84.6% after 250 cycles (based pouch cell: 47.8% cycles). More surprisingly, designed efficiently improve self‐generated heat T 1 by 45 increase TR triggering temperature 40 decrease highest 3 118 °C. These performances cells are attributed robust stable anion‐induced electrode‐electrolyte interphases local electrolyte protection layer. All fundamental findings break conventional battery guidelines open up a new direction develop high‐performance batteries.
Language: Английский
Citations
7