A porous current collector cleaner enables thin cathode electrolyte interphase on LiCoO<sub>2</sub> for stable high-voltage cycling

Lu, Zhong Xu; Mu, Ke Wen; Zhang, Zhi Yong; Luo, Qin; Yin, Yan; Liu, Xian Bin; Li, Ye Sheng; Lei, Yong; Wu, Zi Ping

doi:10.1039/d1ta07268d

J. Mater. Chem. A

2021

DOI: 10.1039/d1ta07268d

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A porous current collector cleaner enables thin cathode electrolyte interphase on LiCoO₂ for stable high-voltage cycling

Zhong Xu Lu

Ke Wen Mu

Zhi Yong Zhang

et al.

Abstract: An efficient removal of decomposed electrolytes with a current collector cleaner is demonstrated for LiCoO2 at high voltages. Surface analysis reveals an ultrathin cathode electrolyte interphase that is retained during subsequent charge/discharge.

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Cited by 5 publications

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In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

Deng

et al. 2023

Angewandte Chemie

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Solid-state lithium batteries are promising and safe energy storage devices for mobile electronics and electric vehicles. In this work, we report a facile in situ polymerization of 1,3-dioxolane electrolytes to fabricate integrated solid-state lithium batteries. The in situ polymerization and formation of solid-state dioxolane electrolytes on interconnected carbon nanotubes (CNTs) and active materials is the key to realizing a high-performance battery with excellent interfacial contact among CNTs, active materials and electrolytes. Therefore, the electrodes could be tightly integrated into batteries through the CNTs and electrolyte. Electrons/ions enable full access to active materials in the whole electrode. Electrodes with a low resistance of 4.5 Ω & À 1 and high lithium-ion diffusion efficiency of 2.5 × 10 À 11 cm 2 s À 1 can significantly improve the electrochemical kinetics. Subsequently, the batteries demonstrated high energy density, amazing charge/discharge rate and long cycle life.

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In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

Deng

et al. 2023

Angewandte Chemie

Self Cite

View full text Add to dashboard Cite

show abstract

In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

Deng

et al. 2023

Angew Chem Int Ed

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Engineering strategies for high‐voltage LiCoO₂ based high‐energy Li‐ion batteries

Ma,

Wang,

Wang

et al. 2024

Electron

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To drive electronic devices for a long range, the energy density of Li‐ion batteries must be further enhanced, and high‐energy cathode materials are required. Among the cathode materials, LiCoO2 (LCO) is one of the most promising candidates when charged to higher voltages over 4.3 V. However, high‐voltage LCO materials are confronted with severe surface and bulk issues inducing poor cyclic stability. To completely unleash the potential of LCO cathodes, a more comprehensive theoretical understanding of the underlying issues is necessary, along with active exploration of previous modifications. This paper mainly presents the degradation mechanisms of LCO under high voltage, the formation and evolution mechanisms of the cathode electrolyte interface, and the surface engineering strategies employed to enhance the cell performance. By organizing and summarizing these modifications, this work aims to establish associations among common research issues and to suggest future research priorities, thus facilitating the rapid development of high‐voltage LCO.

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A porous current collector cleaner enables thin cathode electrolyte interphase on LiCoO₂ for stable high-voltage cycling

Abstract: An efficient removal of decomposed electrolytes with a current collector cleaner is demonstrated for LiCoO2 at high voltages. Surface analysis reveals an ultrathin cathode electrolyte interphase that is retained during subsequent charge/discharge.

Cited by 5 publications

References 36 publications

In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

Engineering strategies for high‐voltage LiCoO₂ based high‐energy Li‐ion batteries

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A porous current collector cleaner enables thin cathode electrolyte interphase on LiCoO2 for stable high-voltage cycling

Abstract: An efficient removal of decomposed electrolytes with a current collector cleaner is demonstrated for LiCoO2 at high voltages. Surface analysis reveals an ultrathin cathode electrolyte interphase that is retained during subsequent charge/discharge.

Cited by 5 publications

References 36 publications

In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

In Situ Polymerized 1,3‐Dioxolane Electrolyte for Integrated Solid‐State Lithium Batteries

Engineering strategies for high‐voltage LiCoO2 based high‐energy Li‐ion batteries

Contact Info

Product

Resources

About

A porous current collector cleaner enables thin cathode electrolyte interphase on LiCoO₂ for stable high-voltage cycling

Engineering strategies for high‐voltage LiCoO₂ based high‐energy Li‐ion batteries