A nitrile solvent structure induced stable solid electrolyte interphase for wide-temperature lithium-ion batteries DOI Creative Commons
Zhong-Ming Wang, Zhiyuan He, Zhong‐Sheng Wang

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(34), P. 13768 - 13778

Published: Jan. 1, 2024

Lithium-ion batteries (LIBs) are extensively employed in various fields. Nonetheless, LIBs utilizing ethylene carbonate (EC)-based electrolytes incur capacity degradation a wide-temperature range, which is attributable to the slow Li+ transfer kinetics at low temperatures and solvent decomposition during high-rate cycling high temperatures. Here, we designed novel electrolyte by substituting nitrile solvents for EC, characterized de-solvation energy ionic conductivity. The correlation between carbon chain length of with reduction stability Li+-solvated coordination was investigated. results revealed that valeronitrile (VN) displayed an enhanced lowest unoccupied molecular orbital level energy, helped construct robust SEI interfacial layers improved ion LIBs. VN-based graphite‖NCM523 pouch cells achieved discharge 89.84% 20C rate room temperature. Meanwhile, cell exhibited 3C even temperature 55 °C. Notably, conductivity 1.585 mS cm-1 -50 retained 75.52% 65.12% their -40 °C °C, respectively. Wide-temperature-range have potential be applied extreme environments.

Language: Английский

An Ultralight Composite Current Collector Enabling High‐Energy‐Density and High‐Rate Anode‐Free Lithium Metal Battery DOI
Zhaofeng Ouyang, Shuo Wang, Yan Wang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 20, 2024

Anode-free lithium (Li) metal batteries are promising alternatives to current Li-ion due their advantages such as high energy density, low cost, and convenient production. However, the copper (Cu) collector accounts for more than 25 wt% of total weight anode-free battery without capacity contribution, which severely reduces power densities. Here, a new family ultralight composite collectors with areal density 0.78 mg cm

Language: Английский

Citations

29
A comprehensive review on liquid electrolyte design for low-temperature lithium/sodium metal batteries DOI

Zhenxin Huang,

Zichun Xiao,

Ruoshan Jin

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(15), P. 5365 - 5386

Published: Jan. 1, 2024

Various liquid electrolyte designs for low-temperature LMBs/SMBs.

Citations

26
Nanofibrous Covalent Organic Frameworks Based Hierarchical Porous Separators for Fast‐Charging and Thermally Stable Lithium Metal Batteries DOI
Kexiang Wang, Ju Duan, Xin Chen

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(25)

Published: April 13, 2024

Abstract Engineering multifunctional smart separators are important for the ongoing pursuit of fast‐charging and safe batteries. Herein, a novel nanofibrous covalent organic framework (COF) based separator with well‐designed hierarchical porous channels is fabricated to effectively regulate mass transport thermally stable lithium metal batteries (LMBs). Such consists electrospun polyacrylonitrile nanofibers macroporous (average diameter 323 nm) mesoporous (≈7 created between amide‐group‐bonded COF nanoparticles intrinsic 1.6 nm lithiophilic microporous (PAN/AM‐COF). Computational fluid dynamics density functional theory calculations demonstrate that PAN/AM‐COF can simultaneously facilitate high‐speed selective Li + , as well homogeneous deposition Li, achieving high conductivity (3.33 mS cm −1 ) transference number (0.79). As result, || LFP full cell displays superior cycling stability at 10 C an acceptable capacity attenuation (0.037% per cycle) over 1000 cycles. Moreover, when operating under extreme temperature 100 °C, still operate stably 300 cycles 30 C, highlighting its potential processing scalability ultrafast‐charging energy storage systems. This study gives insights into designing LMBs.

Language: Английский

Citations

25
Advanced Ether‐Based Electrolytes for Lithium‐ion Batteries DOI
Shizhu Wang, Jian‐Yu Shi, Zhenhui Liu

et al.

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

Published: July 14, 2024

Abstract Lithium‐ion batteries (LIBs) have emerged as vital elements of energy storage systems permeating every facet modern living, particularly in portable electronic devices and electric vehicles. However, with the sustained economic social development, new‐generation LIBs high density, wide operating temperature range, fast charge, safety are eagerly expected, while conventional ethylene carbonate (EC)‐based electrolytes fail to satisfy corresponding requirements. Comparatively, ether‐based electrolyte fascinating properties recently been revived fields, many advanced exciting performances under developed. This review provides an extensive overview latest breakthroughs concerning applied intercalation cathodes. To systematically outline progression electrolytes, this is categorized from perspective anodes follows: i) graphite anode‐based LIBs; ii) silicon iii) lithium metal LIBs.

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
Dissolution, solvation and diffusion in low-temperature zinc electrolyte design DOI
Yang Dong, Honglu Hu,

Ping Liang

et al.

Nature Reviews Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Language: Английский

Citations

7
Principles and trends in extreme fast charging lithium-ion batteries DOI Creative Commons
Yuxing Yao, Lei Xu, Chong Yan

et al.

EES batteries., Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This perspective summarizes principles and trends in extreme fast charging lithium-ion batteries, a key enabler of the mass adoption electric vehicles.

Language: Английский

Citations

5
Designing Current Collectors to Stabilize Li Metal Anodes DOI Creative Commons

Zhimeng Hao,

Yong Lü, Gaojing Yang

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Rechargeable batteries employing Li metal anodes have gained increasing attention due to their high energy density. Nevertheless, low stability and reversibility of severely impeded practical applications. Designing current collectors (CCs) with reasonable structure composition is an efficient approach stabilizing the anodes. However, in-depth comprehensive understanding about design principles modification strategies CCs for realizing stable still lacking. Herein, a critical review focusing on rational summarized. First, requirements in are elucidated clarify objectives CCs. Then, including lithiophilic site modification, 3D architecture construction, protective layer crystalline plane engineering, as well corresponding highlighted. On this basis, recent progress development discussed. Finally, future directions suggested focus developing operando monitoring technology, designing cells under conditions close commercial This will spur more insightful researches toward advanced CCs, promote commercialization.

Language: Английский

Citations

4
Electrolyte Solvent‐Ion Configuration Deciphering Lithium Plating/Stripping Chemistry for High‐Performance Lithium Metal Battery DOI Open Access
Qian Li, Gang Liu, Yinghua Chen

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Abstract Electrolyte engineering plays a critical role in tuning lithium plating/stripping behaviors, thereby enabling safer operation of metal anodes batteries (LMBs). However, understanding how electrolyte microstructures influence the process at molecular level remains significant challenge. Herein, using commonly employed ether‐based as model, each component is elucidated and relationship between behavior established by investigating effects compositions, including solvents, salts, additives. The variations Li + deposition kinetics are not only analyzed characterizing overpotential exchange current density but it also identified that intermolecular interactions previously unexplored cause these 2D nuclear overhauser effect spectroscopy (NOESY). An interfacial model developed to explain solvent interactions, distinct roles anions, additives desolvation thermodynamic stability clusters during process. This clarifies configurations solvents ions related macroscopic properties chemistry. These findings contribute more uniform controllable deposition, providing valuable insights for designing advanced systems LMBs.

Language: Английский

Citations

4
Dynamic doping and interphase stabilization for cobalt-free and high-voltage Lithium metal batteries DOI Creative Commons

Ziqing Yao,

Tianji Fu,

Tao Pan

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 21, 2025

Cobalt-free spinel LiNi0.5Mn1.5O4 (LNMO) positive electrodes, promise high energy density when coupled with lithium negative due to the discharge voltage platform. However, intrinsic dissolution of Mn in electrode, electrolyte decomposition at voltage, and dendrite growth on severely compromise cycling stability, limiting practical application. Herein, we propose ferrocene hexafluorophosphate as an additive achieve dynamic doping Fe3+ electrodes during electrochemical cycling. Furthermore, molecule preferentially decomposes both electrode interfaces, forming thin, dense inorganic interphase F, P-rich solid respectively, effectively stabilizing interfaces. Consequently, Li | |LNMO batteries based modified electrolytes enhance stability rate performance a charge cutoff 4.9 V LNMO pouch cell performs consistently over 160 cycles. Additionally, efficacy extends beyond LNMO, demonstrating its universal applicability operating challenging voltages, including LiNi0.8Co0.1Mn0.1O2, LiNi0.6Co0.2Mn0.2O2, LiCoO2 470 Wh kg−1 level metal was successfully realized. Mn-based suffer from serious problems. Here, authors stabilization electrodes.

Language: Английский

Citations

4