A Cation and Anion Dual-Doping Strategy in Novel Li-Rich Mn-Based Cathode Materials for High-Performance Li Metal Batteries DOI
Xia Sun, Chunling Qin,

Boyang Zhao

et al.

Published: Jan. 1, 2024

Lithium (Li)-rich Manganese (Mn)-based cathode materials are considered to be the most hopeful for next-generation high-energy-density Li metal batteries. However, rapid capacity fading and voltage decaying derived from phase transformation still hinder their practical application. Herein, we developed a cation/anion dual-doping strategy by synchronically incorporating Zr4+ cation F- anion boost structural stability of Li-rich Mn-based cathode. The strengthened transition metal-oxygen bonds raised doping effect can inhibit release oxygen enhanced electrochemical reversibility mitigate anisotropic lattice distortion stabilize layered structure. Meanwhile, dual expands distance increases vacancy formation energy, thereby improving ion diffusion kinetics stability. As result, obtained presents an excellent initial discharge 268.5 mAh g-1 prolonged cycle lifespan beyond 300 cycles. A stable cycling performance under high areal 5.17 cm-2 with low negative/positive electrode ratio 1.93. Our provides valuable new idea properties materials, further promoting development

Language: Английский

Tailoring heterogeneous interfacial chemistry enables long-term cycling of all-solid-state lithium-metal batteries DOI

Weiqian Guo,

Qi Liu, Kai Wu

et al.

Energy storage materials, Journal Year: 2023, Volume and Issue: 63, P. 103006 - 103006

Published: Oct. 1, 2023

Language: Английский

Citations

17
The intermolecular interaction enables ordered ion transport in quasi-solid-state electrolyte for ultra-long life lithium-metal battery DOI

Chuan Ou,

Siyang Ye, Zhaojie Li

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 67, P. 103277 - 103277

Published: Feb. 23, 2024

Language: Английский

Citations

8
Bifunctional Lithium-Montmorillonite Enabling Solid Electrolyte with Superhigh Ionic Conductivity for High-Performanced Lithium Metal Batteries DOI
Lu Wang,

Shangzhao Yi,

Qianqian Liu

et al.

Published: Jan. 1, 2023

Solid-state lithium-metal batteries (SSLMBs) have been regarded as one of the most promising battery systems due to their high energy density and excellent safety. However, low ionic conductivity solid electrolyte (normally < 1 mS cm-1) does not meet practical application SSLMBs. Herein, we propose a vertically-aligned composite electrolytes (VA-CSE) with dual Li+ transportation paths: dimensional (1D) Li+-transportation highway in lithium montmorillonite (Li-MMT) layer along aligned poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) channels unique hopping path created by aggregated ions pairs polymerized vinyl ethylene carbonate-based electrolyte. This Li-MMT/PVDF-HFP (Li-MPSE) exhibits superionic 1.99 cm-1 transference number (0.73) at 30 °C. With this superior Li-MPSE electrolyte, Li/LiFePO4 solid-state stably cycle 200 times 99.7% capacity retention 0.5 C pouch cell also presents electrochemical performance

Language: Английский

Citations

16
Polyethylene oxide-Based solid electrolytes with fast Li-ion transport channels constructed from 2D montmorillonite for solid-state lithium-metal batteries DOI
Fanggang Li,

Boyin Zhou,

Jie He

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 150700 - 150700

Published: March 25, 2024

Language: Английский

Citations

5
A Cation and Anion Dual-Doping Strategy in Novel Li-Rich Mn-Based Cathode Materials for High-Performance Li Metal Batteries DOI
Xia Sun, Chunling Qin,

Boyang Zhao

et al.

Published: Jan. 1, 2024

Lithium (Li)-rich Manganese (Mn)-based cathode materials are considered to be the most hopeful for next-generation high-energy-density Li metal batteries. However, rapid capacity fading and voltage decaying derived from phase transformation still hinder their practical application. Herein, we developed a cation/anion dual-doping strategy by synchronically incorporating Zr4+ cation F- anion boost structural stability of Li-rich Mn-based cathode. The strengthened transition metal-oxygen bonds raised doping effect can inhibit release oxygen enhanced electrochemical reversibility mitigate anisotropic lattice distortion stabilize layered structure. Meanwhile, dual expands distance increases vacancy formation energy, thereby improving ion diffusion kinetics stability. As result, obtained presents an excellent initial discharge 268.5 mAh g-1 prolonged cycle lifespan beyond 300 cycles. A stable cycling performance under high areal 5.17 cm-2 with low negative/positive electrode ratio 1.93. Our provides valuable new idea properties materials, further promoting development

Language: Английский

Citations

5