Ferroelectric Dipoles Tailoring Solid‐Electrolyte‐Interphase Chemistry to Enable Reversible Lithium Metal Batteries DOI Open Access

Baolei Xu,

Chunxiao Zhang, Wenran Wang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

Abstract Solid‐electrolyte interphase (SEI) plays a decisive role in building reliable Li metal batteries. However, the scarcity of anions Helmholtz layer (HL) caused by electrostatic repulsion usually leads to inferior SEI derived from solvents, resulting dendrites and ‘dead’ Li. Therefore, regulating distribution electric double (EDL) continuously introducing more into HL tailor anions‐derived is crucial for achieving stable plating/stripping. Herein, jointly utilizing controlled defects reduced graphene oxide (rGO) oriented dipoles ferroelectric BaTiO 3 (BTO), rGO‐BTO composite sustainedly brings TFSI − NO anion‐defecient HL, promoting favorable decomposition guiding generation robust fast‐Li + ‐transport containing inorganics LiF N species. Thus, deposit shows smooth dense morphologies without dendrites, leading high average Coulombic efficiency. The Li//Cu@rGO‐BTO (10 mAh cm −2 plated Li) cell exhibits an enhanced plating/stripping stability (2700 h) higher rate capability. LiFePO 4 full (N/P≈6.3) using displays capacity retention (82.0 % @ 430 cycles). This work provides new insight on construction within EDL.

Language: Английский

In‐situ photo‐polymerized elastomeric composite electrolytes containing Li6.4La3Zr1.4Ta0.6O12 particles for stable operation in lithium metal batteries DOI Creative Commons
Seung Ho Kwon,

Seong-Min Kim,

Jinseok Park

et al.

EcoMat, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

Abstract Composite polymer electrolytes (CPEs), produced by incorporating inorganic nanoparticles (NPs) into matrices, have gained significant attention as promising candidates for solid‐state lithium metal batteries (LMBs). However, the aggregation of dense fillers results in nonuniform CPEs, thereby impeding LMB performance. Here, we fabricated in‐situ photo‐polymerized CPEs different weight ratios (0–20 wt%) Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) a electrolyte system composed poly(butyl acrylate)‐based elastomer and succinonitrile‐based plastic crystal phases. The rapid photo‐polymerization process (~5 min) enabled homogeneous dispersion LLZTO within CPE matrix at 10 wt% (L10), resulting high ionic conductivity (1.02 mS cm −1 25°C) mechanical elasticity (elongation break ≈ 1250%) compared to those without (L0). As result, L10‐based with LiNi 0.8 Co 0.1 Mn 2 cathode exhibited capacity 166.7 mAh g after 200 cycles 0.5C, significantly higher than L0 (74.0 ) L20 (104.8 ). In comparison, thermal polymerized NPs showed due slow polymerization kinetics (~2 h), inferior cycling performance L10. This work highlights importance homogenous achieve robustness suitable stable operation LMBs. image

Language: Английский

Citations

1
Covalent organic frameworks (COFs) as fast lithium-ion transport fillers for solid polymer electrolytes DOI
Chaoyan Zhang, Zhen Jiang, Peng Guo

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158146 - 158146

Published: Nov. 1, 2024

Language: Английский

Citations

1
Dissociating high concentration lithium salts in LLZTO-based high dielectric polymer electrolytes for low temperature Li metal batteries DOI

Jiajun Gong,

Zhi‐Cheng Yao,

Qimin Peng

et al.

Materials Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 8(21), P. 3569 - 3576

Published: Jan. 1, 2024

A new composite electrolyte, combined with rigid fillers and high dielectric polymers, promotes the dissociation of lithium salts construction multiple Li + paths, improving metal batteries performances at room low temperatures.

Language: Английский

Citations

0
Ferroelectric Dipoles Tailoring Solid‐Electrolyte‐Interphase Chemistry to Enable Reversible Lithium Metal Batteries DOI Open Access

Baolei Xu,

Chunxiao Zhang, Wenran Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

Abstract Solid‐electrolyte interphase (SEI) plays a decisive role in building reliable Li metal batteries. However, the scarcity of anions Helmholtz layer (HL) caused by electrostatic repulsion usually leads to inferior SEI derived from solvents, resulting dendrites and ‘dead’ Li. Therefore, regulating distribution electric double (EDL) continuously introducing more into HL tailor anions‐derived is crucial for achieving stable plating/stripping. Herein, jointly utilizing controlled defects reduced graphene oxide (rGO) oriented dipoles ferroelectric BaTiO 3 (BTO), rGO‐BTO composite sustainedly brings TFSI − NO anion‐defecient HL, promoting favorable decomposition guiding generation robust fast‐Li + ‐transport containing inorganics LiF N species. Thus, deposit shows smooth dense morphologies without dendrites, leading high average Coulombic efficiency. The Li//Cu@rGO‐BTO (10 mAh cm −2 plated Li) cell exhibits an enhanced plating/stripping stability (2700 h) higher rate capability. LiFePO 4 full (N/P≈6.3) using displays capacity retention (82.0 % @ 430 cycles). This work provides new insight on construction within EDL.

Language: Английский

Citations

0
Ferroelectric Dipoles Tailoring Solid‐Electrolyte‐Interphase Chemistry to Enable Reversible Lithium Metal Batteries DOI Open Access

Baolei Xu,

Chunxiao Zhang, Wenran Wang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

Abstract Solid‐electrolyte interphase (SEI) plays a decisive role in building reliable Li metal batteries. However, the scarcity of anions Helmholtz layer (HL) caused by electrostatic repulsion usually leads to inferior SEI derived from solvents, resulting dendrites and ‘dead’ Li. Therefore, regulating distribution electric double (EDL) continuously introducing more into HL tailor anions‐derived is crucial for achieving stable plating/stripping. Herein, jointly utilizing controlled defects reduced graphene oxide (rGO) oriented dipoles ferroelectric BaTiO 3 (BTO), rGO‐BTO composite sustainedly brings TFSI − NO anion‐defecient HL, promoting favorable decomposition guiding generation robust fast‐Li + ‐transport containing inorganics LiF N species. Thus, deposit shows smooth dense morphologies without dendrites, leading high average Coulombic efficiency. The Li//Cu@rGO‐BTO (10 mAh cm −2 plated Li) cell exhibits an enhanced plating/stripping stability (2700 h) higher rate capability. LiFePO 4 full (N/P≈6.3) using displays capacity retention (82.0 % @ 430 cycles). This work provides new insight on construction within EDL.

Language: Английский

Citations

0