Localized Electrons Enhanced Ion Transport for Ultrafast Electrochemical Energy Storage

Jiewei Chen; Bi Luo; Qiushui Chen; Fei Li; Yanjiao Guo; Tom Wu; Peng Peng; Xian Qin; Gaoxiang Wu; Mengqi Cui; Lehao Liu; Lihua Chu; Bing Jiang; Yingfeng Li; Xueqing Gong; Yang Chai; Yongping Yang; Yonghua Chen; Wei Huang; Xiaogang Liu; Meicheng Li

doi:10.1002/adma.201905578

Localized Electrons Enhanced Ion Transport for Ultrafast Electrochemical Energy Storage

Jiewei Chen, Bi Luo, Qiushui Chen, Fei Li, Yanjiao Guo, Tom Wu, Peng Peng, Xian Qin, Gaoxiang Wu, Mengqi Cui, Lehao Liu, Lihua Chu, Bing Jiang, Yingfeng Li, Xueqing Gong, Yang Chai, Yongping Yang, Yonghua Chen, Wei Huang, Xiaogang LiuMeicheng Li

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

The rate-determining process for electrochemical energy storage is largely determined by ion transport occurring in the electrode materials. Apart from decreasing the distance of ion diffusion, the enhancement of ionic mobility is crucial for ion transport. Here, a localized electron enhanced ion transport mechanism to promote ion mobility for ultrafast energy storage is proposed. Theoretical calculations and analysis reveal that highly localized electrons can be induced by intrinsic defects, and the migration barrier of ions can be obviously reduced. Consistently, experiment results reveal that this mechanism leads to an enhancement of Li/Na ion diffusivity by two orders of magnitude. At high mass loading of 10 mg cm⁻² and high rate of 10C, a reversible energy storage capacity up to 190 mAh g⁻¹ is achieved, which is ten times greater than achievable by commercial crystals with comparable dimensions.

Original language	English
Article number	1905578
Journal	Advanced Materials
Volume	32
Issue number	14
DOIs	https://doi.org/10.1002/adma.201905578
State	Published - 1 Apr 2020

Keywords

electrochemical energy storage
high loading mass
ion transport
lithium-ion batteries
sodium-ion batteries

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/adma.201905578

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title = "Localized Electrons Enhanced Ion Transport for Ultrafast Electrochemical Energy Storage",

abstract = "The rate-determining process for electrochemical energy storage is largely determined by ion transport occurring in the electrode materials. Apart from decreasing the distance of ion diffusion, the enhancement of ionic mobility is crucial for ion transport. Here, a localized electron enhanced ion transport mechanism to promote ion mobility for ultrafast energy storage is proposed. Theoretical calculations and analysis reveal that highly localized electrons can be induced by intrinsic defects, and the migration barrier of ions can be obviously reduced. Consistently, experiment results reveal that this mechanism leads to an enhancement of Li/Na ion diffusivity by two orders of magnitude. At high mass loading of 10 mg cm−2 and high rate of 10C, a reversible energy storage capacity up to 190 mAh g−1 is achieved, which is ten times greater than achievable by commercial crystals with comparable dimensions.",

keywords = "electrochemical energy storage, high loading mass, ion transport, lithium-ion batteries, sodium-ion batteries",

author = "Jiewei Chen and Bi Luo and Qiushui Chen and Fei Li and Yanjiao Guo and Tom Wu and Peng Peng and Xian Qin and Gaoxiang Wu and Mengqi Cui and Lehao Liu and Lihua Chu and Bing Jiang and Yingfeng Li and Xueqing Gong and Yang Chai and Yongping Yang and Yonghua Chen and Wei Huang and Xiaogang Liu and Meicheng Li",

note = "Publisher Copyright: {\textcopyright} 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2020",

month = apr,

day = "1",

doi = "10.1002/adma.201905578",

language = "英语",

volume = "32",

journal = "Advanced Materials",

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TY - JOUR

T1 - Localized Electrons Enhanced Ion Transport for Ultrafast Electrochemical Energy Storage

AU - Chen, Jiewei

AU - Luo, Bi

AU - Chen, Qiushui

AU - Li, Fei

AU - Guo, Yanjiao

AU - Wu, Tom

AU - Peng, Peng

AU - Qin, Xian

AU - Wu, Gaoxiang

AU - Cui, Mengqi

AU - Liu, Lehao

AU - Chu, Lihua

AU - Jiang, Bing

AU - Li, Yingfeng

AU - Gong, Xueqing

AU - Chai, Yang

AU - Yang, Yongping

AU - Chen, Yonghua

AU - Huang, Wei

AU - Liu, Xiaogang

AU - Li, Meicheng

PY - 2020/4/1

Y1 - 2020/4/1

N2 - The rate-determining process for electrochemical energy storage is largely determined by ion transport occurring in the electrode materials. Apart from decreasing the distance of ion diffusion, the enhancement of ionic mobility is crucial for ion transport. Here, a localized electron enhanced ion transport mechanism to promote ion mobility for ultrafast energy storage is proposed. Theoretical calculations and analysis reveal that highly localized electrons can be induced by intrinsic defects, and the migration barrier of ions can be obviously reduced. Consistently, experiment results reveal that this mechanism leads to an enhancement of Li/Na ion diffusivity by two orders of magnitude. At high mass loading of 10 mg cm−2 and high rate of 10C, a reversible energy storage capacity up to 190 mAh g−1 is achieved, which is ten times greater than achievable by commercial crystals with comparable dimensions.

AB - The rate-determining process for electrochemical energy storage is largely determined by ion transport occurring in the electrode materials. Apart from decreasing the distance of ion diffusion, the enhancement of ionic mobility is crucial for ion transport. Here, a localized electron enhanced ion transport mechanism to promote ion mobility for ultrafast energy storage is proposed. Theoretical calculations and analysis reveal that highly localized electrons can be induced by intrinsic defects, and the migration barrier of ions can be obviously reduced. Consistently, experiment results reveal that this mechanism leads to an enhancement of Li/Na ion diffusivity by two orders of magnitude. At high mass loading of 10 mg cm−2 and high rate of 10C, a reversible energy storage capacity up to 190 mAh g−1 is achieved, which is ten times greater than achievable by commercial crystals with comparable dimensions.

KW - electrochemical energy storage

KW - high loading mass

KW - ion transport

KW - lithium-ion batteries

KW - sodium-ion batteries

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U2 - 10.1002/adma.201905578

DO - 10.1002/adma.201905578

M3 - 文章

C2 - 32101356

AN - SCOPUS:85080068977

SN - 0935-9648

VL - 32

JO - Advanced Materials

JF - Advanced Materials

IS - 14

M1 - 1905578

ER -

Localized Electrons Enhanced Ion Transport for Ultrafast Electrochemical Energy Storage

Abstract

Keywords

UN SDGs

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