Asymmetrical interface modification between electrodes and garnet-type electrolyte enabling all-solid-state lithium batteries

Jiang，Yidong1; Ma，Jun1; Lai，Anjie1; Huang，Wei2; Wang，Chaoyang3; Chi，Shang Sen1; Wang，Jun1; Deng，Yonghong1

2023-01-15

10.1016/j.jpowsour.2022.232335

JOURNAL OF POWER SOURCES   Impact Factor & Quartile

0378-7753

1873-2755

Garnet-based all-solid-state lithium batteries are expected to achieve high energy density and safety. However, the distinctly different chemical and electrochemical environment between the electrodes and garnet-type LiLaZrTaO (LLZTO) electrolyte results in high interfacial impedance that greatly hinders the electrochemical performance. Herein, we propose an asymmetrical interface modification strategy by respectively introducing an ultrathin in-situ polymerized interlayer on the cathode side and a lithiophilic liquid metal coating layer on the Li metal anode side. As a result, the interfacial impedance on both side is significantly reduced to 214 Ω cm on the cathode side and 7.45 Ω cm on the Li metal anode side due to the intimate contact and enhanced wettability between Li metal and GSSE together with improved conformability on the cathode side and Li ion conductance within the cathode. Therefore, the interface modified LiFePO||LLZTO||Li all-solid-state battery exhibits excellent cycling performance over 150 cycles with capacity retention of 96.7% and small voltage polarization of 55 mV at 0.1C and 60 °C. This work provides a convenient strategy to alleviate the interfacial issues in all-solid-state batteries.

All-solid-state battery Asymmetrical interface modification Cathode-electrolyte interface Garnet-type electrolyte In-situ polymerization

EI ; SCI

English

First ; Corresponding

Special Project for Research and Development in Key areas of Guangdong Province[2020B090919001];Science and Technology Planning Project of Guangdong Province[2021A0505110001];Natural Science Foundation of Guangdong Province[2021A1515010138];National Natural Science Foundation of China[22078144];National Natural Science Foundation of China[22279051];

Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000917904700005

ELSEVIER

20224513071817

Anodes ; Electrochemical electrodes ; Garnets ; Interface states ; Lithium compounds ; Lithium-ion batteries ; Metals ; Phase interfaces ; Solid electrolytes ; Solid state devices ; Solid-State Batteries

Secondary Batteries:702.1.2 ; Electron Tubes:714.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Physical Chemistry:801.4 ; Chemical Agents and Basic Industrial Chemicals:803 ; Classical Physics; Quantum Theory; Relativity:931 ; High Energy Physics; Nuclear Physics; Plasma Physics:932

MATERIALS SCIENCE

2-s2.0-85141250126

Scopus

1.Department of Materials Science and Engineering,School of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen,518055,China
2.ISME Department of CoB,National Center for Applied Mathematics Shenzhen (NCAMS−Digital Economy),Southern University of Science and Technology,Shenzhen,518055,China
3.Research Institute of Materials Science,South China University of Technology,Guangzhou,510640,China

Jiang，Yidong,Ma，Jun,Lai，Anjie,et al. Asymmetrical interface modification between electrodes and garnet-type electrolyte enabling all-solid-state lithium batteries[J]. JOURNAL OF POWER SOURCES,2023,554.

Jiang，Yidong.,Ma，Jun.,Lai，Anjie.,Huang，Wei.,Wang，Chaoyang.,...&Deng，Yonghong.(2023).Asymmetrical interface modification between electrodes and garnet-type electrolyte enabling all-solid-state lithium batteries.JOURNAL OF POWER SOURCES,554.

Jiang，Yidong,et al."Asymmetrical interface modification between electrodes and garnet-type electrolyte enabling all-solid-state lithium batteries".JOURNAL OF POWER SOURCES 554(2023).