Full‐Dimensional Analysis of Gaseous Products Within Li‐Ion Batteries by On‐Line GC‐BID/MS DOI
Haitang Zhang, Xiaohong Wu, Zhengang Li

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(24)

Published: April 3, 2024

Abstract The gas release within Li‐ion batteries, particularly during cycling and storage, can result in rapid performance degradation potential safety hazards. However, this area has not garnered sufficient attention until now, primarily because the gassing information collected by typical OEMS/DEMS is quite limited even inaccurate. Herein, for first time, a state‐of‐the‐art on‐line GC‐BID/MS to full‐dimensionally analyze behavior both lab‐scale coin‐type cell (in situ mode) industry‐scale pouch‐type (operando originally designed/constructed. Not common permanent gases (e.g. H 2 , CO, etc.) detected online GC‐BID, but also complicated/various (semi‐)volatile products are identified/quantified GC‐MS. Based on real‐time evolution of water, alcohols, aldehydes, ethers, esters, hydrocarbons, decomposition mechanisms electrolyte graphite anode and/or LCO cathode sides further supplemented/perfected. Moreover, at level device, series derivative/crosstalk reactions induced trapped/accumulated gaseous species unveiled practical pouch‐cell.

Language: Английский

Microstructures of layered Ni-rich cathodes for lithium-ion batteries DOI
Jingyu Lu, Chao Xu, Wesley M. Dose

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(9), P. 4707 - 4740

Published: Jan. 1, 2024

The microstructural degradation, stabilization, and characterization of layered Ni-rich cathodes for Li-ion batteries are comprehensively reviewed in this paper.

Language: Английский

Citations

66
Advances in sodium-ion batteries at low-temperature: Challenges and strategies DOI

Haoran Bai,

Xiaohui Zhu, Huaisheng Ao

et al.

Journal of Energy Chemistry, Journal Year: 2023, Volume and Issue: 90, P. 518 - 539

Published: Nov. 16, 2023

Language: Английский

Citations

54
Challenges and Breakthroughs in Enhancing Temperature Tolerance of Sodium‐Ion Batteries DOI
Chang Che, Feng Wu, Yu Li

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(28)

Published: April 18, 2024

Abstract Lithium‐based batteries (LBBs) have been highly researched and recognized as a mature electrochemical energy storage (EES) system in recent years. However, their stability effectiveness are primarily confined to room temperature conditions. At temperatures significantly below 0 °C or above 60 °C, LBBs experience substantial performance degradation. Under such challenging extreme contexts, sodium‐ion (SIBs) emerge promising complementary technology, distinguished by fast dynamics at low‐temperature regions superior safety under elevated temperatures. Notably, developing SIBs suitable for wide‐temperature usage still presents significant challenges, particularly specific applications electric vehicles, renewable storage, deep‐space/polar explorations, which requires thorough understanding of how perform different By reviewing the development SIBs, influence on parameters related battery performance, reaction constant, charge transfer resistance, etc., is systematically comprehensively analyzed. The review emphasizes challenges encountered both low high while exploring advancements SIB materials, specifically focusing strategies enhance across diverse ranges. Overall, insights gained from these studies will drive that can handle posed harsh climates.

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

33
Unexpected stable cycling performance at low temperatures of Li-ion batteries with Si/C anodes DOI
Kai Sun, Xueyan Li, Zhuojun Zhang

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 66, P. 103216 - 103216

Published: Jan. 22, 2024

Language: Английский

Citations

24
Directing Fluorinated Solid Electrolyte Interphase by Solubilizing Crystal Lithium Fluoride in Aprotic Electrolyte for Lithium Metal Batteries DOI

Xiaozhong Fan,

Jinhao Zhang, Nan Yao

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(16)

Published: Feb. 21, 2024

Abstract Lithium fluoride (LiF) facilitates robust and fast‐ion‐transport solid electrolyte interphase (SEI) in lithium metal batteries. Fluorinated solvents/salts are ubiquitously employed to introduce LiF into SEI through electrochemical decomposition, but this approach is usually at the expense of their continuous consumption. A direct fluorinate that employs crystal limited by its poor solubility current battery formulation. Dissolving high‐dielectric‐constant solvents, like ethylene carbonate (EC) nearly neglected. Herein, feasibility directly fluorinating addition aprotic with assistance EC verified, mechanisms fluorination anti‐acidification explored. The dissolved encapsulated solvent‐/salt‐derived organic skins promote fluorinated SEI. Meanwhile, presence alters hazardous thermodynamic equilibrium, suppressing production acid species mitigate acidification degradation. Such collective benefits yield a capacity retention ratio ≈88% after 150 cycles high areal (4.5 mAh cm −2 ) Li||NCM622 cells. This facile effective contributes an in‐depth understanding formation rational design well‐performing

Language: Английский

Citations

20
Anchored Weakly‐Solvated Electrolytes for High‐Voltage and Low‐Temperature Lithium‐ion Batteries DOI
Xu Liu, Jingwei Zhang,

Xuanyu Yun

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(36)

Published: June 14, 2024

Electrolytes endowed with high oxidation/reduction interfacial stability, fast Li-ion desolvation process and decent ionic conductivity over wide temperature region are known critical for low fast-charging performance of energy-dense batteries, yet these characteristics rarely satisfied simultaneously. Here, we report anchored weakly-solvated electrolytes (AWSEs), that designed by extending the chain length polyoxymethylene ether electrolyte solvent, can achieve above merits at moderate salt concentrations. The -O-CH

Language: Английский

Citations

19
Doping in Solvation Structure: Enabling Fluorinated Carbonate Electrolyte for High-Voltage and High-Safety Lithium-Ion Batteries DOI
Mingsheng Qin, Ziqi Zeng,

Fenfen Ma

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(6), P. 2536 - 2544

Published: May 7, 2024

Operating a Ni-rich cathode beyond 4.3 V safely holds promise for boosting the energy density in lithium-ion batteries (LIBs). Methyl 2,2,2-trifluoroethyl carbonate (FEMC) shows oxidative stability and high safety but suffers from degraded LUMO levels once coordinated with Li+ within electrolytes. Here, we utilize propylene (PC) as functional dopant, which deliberately tunes FEMC-dominated solvation chemistry improves by dipole–dipole interaction microsolvating competition. As result, optimized electrolyte demonstrates an expanded electrochemical window (4.7 NCM811), fire resistance, wide liquid range (−60–120 °C), affording 75.6% capacity retention 1.2 Ah NCM811/graphite pouch cells over 1200 cycles. This "doping strategy" is generalized to other electrolytes (e.g., carbonates, fluorinated esters, carboxylic esters) qualifies ameliorated interfacial compatibility, providing insights designing high-safety high-energy LIBs.

Language: Английский

Citations

18
Electrolyte Design Enables Rechargeable LiFePO4/Graphite Batteries from −80°C to 80°C DOI
Zeheng Li, Yuxing Yao, Mengting Zheng

et al.

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

18
Research on performance constraints and electrolyte optimization strategies for lithium-ion batteries at low temperatures DOI Creative Commons

Changlin Liu,

Lizhi Sheng, Lili Jiang

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(10), P. 7995 - 8018

Published: Jan. 1, 2025

This review examines the limitations of LIBs at low temperatures, discusses advancements in electrolyte components and novel formulations, proposes future strategies to improve performance under extreme conditions.

Language: Английский

Citations

5