Fluorinated electrolyte formulations design enabling high-voltage and long-life lithium metal batteries DOI Creative Commons

Yuxin Rao,

Xue Li, Shangquan Zhao

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: 123, P. 109362 - 109362

Published: Feb. 6, 2024

The poor compatibility of carbonate-based electrolytes with lithium metal anodes results in unstable solid electrolyte interphase, leading to dendrite formation, low Coulombic efficiency, and short cycle life. To address this issue, we propose a novel fluorinated that leverages bis(fluorosulfonyl)imide (LiFSI), along solvents. An extremely concentration nitrate exerts substantial impact on the Li ion solvation structure, inducing an anions-rich inorganic-rich interphase layer mainly composed Li3N LiF, which effectively inhibits enhances interfacial stability between electrode electrolyte, yields excellent cycling performance batteries. When coupled high nickel content cathode (LiNi0.8Co0.1Mn0.1O2), cells exhibit impressive 1000 cycles at 4C, retaining 68.6% capacity (with charge times under 15 minutes). Despite relatively oxidation Dimethoxyethane cell demonstrates exceptional high-voltage electrochemical performance, even up 4.5V, do not show extensive decomposition structural changes, preserving 79.2% retention after 300 cycles. Using 50 μm foil cells, remarkable 89.5% is achieved 400 1C. This anode represents significant breakthrough enhancing reliability

Language: Английский

Electrolyte Chemistry toward Ultrawide-Temperature (−25 to 75 °C) Sodium-Ion Batteries Achieved by Phosphorus/Silicon-Synergistic Interphase Manipulation DOI
Haojie Liang,

Han‐Hao Liu,

Xinxin Zhao

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(11), P. 7295 - 7304

Published: Feb. 16, 2024

All-weather operation is considered an ultimate pursuit of the practical development sodium-ion batteries (SIBs), however, blocked by a lack suitable electrolytes at present. Herein, introducing synergistic manipulation mechanisms driven phosphorus/silicon involvement, compact electrode/electrolyte interphases are endowed with improved interfacial Na-ion transport kinetics and desirable structural/thermal stability. Therefore, modified carbonate-based electrolyte successfully enables all-weather adaptability for long-term over wide temperature range. As verification, half-cells using designed operate stably range −25 to 75 °C, accompanied capacity retention rate exceeding 70% even after 1700 cycles 60 °C. More importantly, full cells assembled Na3V2(PO4)2O2F cathode hard carbon anode also have excellent cycling stability, 500 1000 50 °C superb during dynamic testing continuous change. In short, this work proposes advanced regulation strategy targeted all-climate SIB operation, which good practicability reference significance.

Language: Английский

Citations

41
Recent advances in zinc-ion dehydration strategies for optimized Zn–metal batteries DOI
Haoyu Li, Sijie Li,

Ruilin Hou

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(15), P. 7742 - 7783

Published: Jan. 1, 2024

Aqueous Zn-metal batteries have attracted increasing interest for large-scale energy storage owing to their outstanding merits in terms of safety, cost and production. However, they constantly suffer from inadequate density poor cycling stability due the presence zinc ions fully hydrated solvation state. Thus, designing dehydrated structure can effectively address current drawbacks aqueous batteries. In this case, considering lack studies focused on strategies dehydration ions, herein, we present a systematic comprehensive review deepen understanding zinc-ion regulation. Two fundamental design principles component regulation pre-desolvation are summarized environment formation interfacial desolvation behavior. Subsequently, specific strategy based distinct carefully discussed, including preparation methods, working mechanisms, analysis approaches performance improvements. Finally, general summary issues addressed using strategies, four critical aspects promote presented as an outlook, involving updating (de)solvation theories, revealing evolution, enhancing techniques developing functional materials. We believe that will not only stimulate more creativity optimizing electrolytes but also provide valuable insights into other battery systems.

Language: Английский

Citations

39
Rational Design of F-Modified Polyester Electrolytes for Sustainable All-Solid-State Lithium Metal Batteries DOI
Xiaoxin Xie, Peng Zhang, Xihui Li

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(9), P. 5940 - 5951

Published: Feb. 22, 2024

Solid polymer electrolytes (SPEs) are one of the most practical candidates for solid-state batteries owing to their high flexibility and low production cost, but application is limited by Li+ conductivity a narrow electrochemical window. To improve performance, it necessary reveal structure–property relationship SPEs. Here, 23 fluorinated linear polyesters were prepared editing coordination units, flexible linkage segments, interface passivating groups. Besides traditionally demonstrated coordinating capability chains, molecular asymmetry resulting interchain aggregation observed critical conductivity. By tailoring ability polyesters, can be raised 10 times. Among these solvent-free poly(pentanediol adipate) delivers highest room-temperature 0.59 × 10–4 S cm–1. The chelating oxalate leads an electron delocalization alkoxy oxygen, enhancing antioxidation lower high-value LiTFSI in SPEs recycled at 90%, regenerated 86%. This work elucidates polyester-based SPEs, displays design principles provides way development sustainable batteries.

Language: Английский

Citations

31
Harnessing the potential of MOF-derived metal oxide composites to optimize energy efficiency in batteries and supercapacitors DOI
Amir Shahzad, Farooq Ahmad, Shahid Atiq

et al.

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 87, P. 111447 - 111447

Published: March 26, 2024

Language: Английский

Citations

31
Electrolytes Design for Extending the Temperature Adaptability of Lithium‐Ion Batteries: from Fundamentals to Strategies DOI

Shuang Wan,

Weiting Ma, Yutong Wang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 13, 2024

Abstract With the continuously growing demand for wide‐range applications, lithium‐ion batteries (LIBs) are increasingly required to work under conditions that deviate from room temperature (RT). However, commercial electrolytes exhibit low thermal stability at high temperatures (HT) and poor dynamic properties (LT), hindering operation of LIBs extreme conditions. The bottleneck restricting practical applications has promoted researchers pay more attention developing a series innovative electrolytes. This review primarily covers design adaptability perspective. First, fundamentals concerning temperature, including donor number (DN), dielectric constant, viscosity, conductivity, ionic transport, theoretical calculations elaborated. Second, prototypical examples, such as lithium salts, solvent structures, additives, interfacial layers in both liquid solid electrolytes, presented explain how these factors can affect electrochemical behavior or temperatures. Meanwhile, principles limitations electrolyte discussed corresponding Finally, summary outlook regarding extend proposed.

Language: Английский

Citations

28
Visualizing and Regulating Dynamic Evolution of Interfacial Electrolyte Configuration during De‐solvation Process on Lithium‐Metal Anode DOI
Junhao Wang,

Jing Luo,

Haichuan Wu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(17)

Published: March 5, 2024

Abstract Acting as a passive protective layer, solid‐electrolyte interphase (SEI) plays crucial role in maintaining the stability of Li‐metal anode. Derived from reductive decomposition electrolytes (e.g., anion and solvent), SEI construction presents an interfacial process accompanied by dynamic de‐solvation during plating. However, typical electrolyte engineering related modification strategies always ignore evolution configuration at Li/electrolyte interface, which essentially determines architecture. Herein, employing advanced electrochemical situ FT‐IR MRI technologies, we directly visualize variations solvation environments involving Li + ‐solvent/anion. Remarkably, weakened ‐solvent interaction anion‐lean have been synchronously revealed, is difficult for fabrication anion‐derived layer. Moreover, simple regulation strategy, pulse protocol was introduced to effectively restore concentration, resulting enhanced LiF‐rich layer improved plating/stripping reversibility.

Language: Английский

Citations

28
Molecular-docking electrolytes enable high-voltage lithium battery chemistries DOI

Baochen Ma,

Haikuo Zhang, Ruhong Li

et al.

Nature Chemistry, Journal Year: 2024, Volume and Issue: 16(9), P. 1427 - 1435

Published: July 15, 2024

Language: Английский

Citations

28
Gradient Interphase Engineering Enabled by Anionic Redox for High-Voltage and Long-Life Li-Ion Batteries DOI
Baodan Zhang, Xiaohong Wu, Haiyan Luo

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(7), P. 4557 - 4569

Published: Feb. 12, 2024

Intelligent utilization of the anionic redox reaction (ARR) in Li-rich cathodes is an advanced strategy for practical implementation next-generation high-energy-density rechargeable batteries. However, due to intrinsic complexity ARR (e.g., nucleophilic attacks), instability cathode-electrolyte interphase (CEI) on a cathode presents more challenges than typical high-voltage cathodes. Here, we manipulate CEI interfacial engineering by introducing all-fluorinated electrolyte and exploiting its interaction with attack construct gradient containing pair fluorinated layers cathode, delivering enhanced stability. Negative/detrimental decomposition has been efficiently evolved further reinforce fabrication, resulting construction LiF-based indurated outer shield polymer-based flexible inner sheaths. Gradient dramatically improved capacity retention from 43 71% after 800 cycles achieved superior cycling stability anode-free pouch-type full cells (98.8% retention, 220 cycles), respectively.

Language: Английский

Citations

25
Insights into Cation Migration and Intermixing in Advanced Cathode Materials for Lithium‐Ion Batteries DOI
Shu Zhang, Zhuo Yang, Yong Lü

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 29, 2024

Abstract Cathode materials are the core components of lithium‐ion batteries owing to determination practical voltage and effective energy battery system. However, advanced cathodes have faced challenges related cation migration intermixing. In this review, study summarizes structural failure mechanisms due mixing cathodes, including Ni‐rich Li‐rich layered spinel, olivine, disordered rock‐salt materials. This review starts by discussing degradation caused intermixing in different focusing on electronic structure, crystal electrode structure. Furthermore, optimization strategies for inhibition rational utilization systematically encapsulated. Last but not least, remaining proposed perspectives highlighted future development cathodes. The accurate analysis using characterization, precise control material synthesis, multi‐dimensional synergistic modification will be key research areas provides a comprehensive understanding emerge as pivotal controllable factors further

Language: Английский

Citations

23
Development of Electrolytes under Lean Condition in Lithium–Sulfur Batteries DOI
Jianjun Chen, Yuqing Fu, Juchen Guo

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(29)

Published: April 28, 2024

Abstract Lithium–sulfur (Li–S) batteries stand out as one of the promising candidates for next‐generation electrochemical energy storage technologies. A key requirement to realize high‐specific‐energy Li–S is implement low amount electrolyte, often characterized by electrolyte/sulfur (E/S) ratio. Low E/S ratio aggravates known challenges and introduces new ones originated from high concentration polysulfides in limited electrolyte reservoir. In this review, connections between fundamental properties electrolytes electrochemical/chemical reactions under lean condition are elucidated. The emphasis on how solvating affect fate polysulfides. Built upon mechanistic analysis, different strategies design improve overall process Li anode protection discussed.

Language: Английский

Citations

20