Super-three-dimensional lithiophilic Cu-based current collector for anode-free lithium metal battery

Li, Nanrui1,2; Jia, Tianqi1,2; Liu, Yanru1,2; Ouyang, Yunfei1,2; Lv, Yao1,3,4; Zhong, Geng1,2; Wang, Yufeng1,2; Sun, Bo1,2; Lu, Sirong5; Huang, Shifei1,2; Kang, Feiyu1,2; Cao, Yidan1,2

2023-08-01

10.1016/j.mtener.2023.101341

MATERIALS TODAY ENERGY   影响因子和分区

2468-6069

The formation of Li dendrites and dead Li, which causes short circuits, continuous side reactions, low Coulombic efficiency (CE) and thermal runaway, severely hinders the development of anode-free lithium metal batteries. Here, Cu-based current collector with super-three-dimensional lithiophilic modification layer is developed by the pyrolysis of resorcinol formaldehyde on 3D engineered copper mesh (a-RF@3D CM). The modification layer, consisting of highly dispersed CuOx sites in the O-containing defective carbon, together with the super-three-dimensional microstructure exhibits excellent lithiophilicity and capability to effectively reduce the nucleation overpotential, accommodate the uniform dendrite-free lithium deposition, promote stable and inorganic-rich solid electrolyte interphase formation, and improve the cycle stability. As a result, the a-RF@3D CM current collector exhibits reduced nucleation overpotential of 14.2 mV and prolonged cycling life over 400 cycles with average CE >98.5%. In the LiFePO4||a-RF@3D CM anode-free cell, average CE of 99.50% and capacity retention of 60.66% are suc-cessfully achieved after 100 cycles. Meanwhile, average CE 99.78% and capacity retention of 64.43% are successfully achieved in LiFePO4||Li@a-RF@3D CM cell (N/P 1/4 1.6) after 200 cycles. The work provides feasible way to realize the fabrication of anode-free lithium metal batteries and also enhance the un-derstanding of solid electrolyte interface evolution and regulation strategy of Li platingestripping in advanced Li metal-based batteries.& COPY; 2023 Elsevier Ltd. All rights reserved.

Cu current collector Super-three-dimensional Lithiophilicity Dendrite free Anode-free lithium metal battery

SCI ; EI

英语

其他

Department of Science and Technology of Guangdong Province[211233812024] ; Guangdong Basic and Applied Basic Research Foundation[2021A1515110871] ; Shenzhen Science and Technology Program["JCYJ20220818101007016","JCYJ20210324140804013"] ; Tsinghua Shenzhen International Graduate School[QD2021005N]

Chemistry ; Energy & Fuels ; Materials Science

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

WOS:001035235300001

ELSEVIER SCI LTD

20232514272725

Copper ; Copper compounds ; Electric current collectors ; Iron compounds ; Lithium ; Lithium compounds ; Lithium-ion batteries ; Nucleation ; Solid electrolytes

Lithium and Alloys:542.4 ; Copper:544.1 ; Alkali Metals:549.1 ; Electric Equipment:704.2 ; Electron Tubes:714.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Crystal Growth:933.1.2

Web of Science

1.Tsinghua Univ, Inst Mat Res, Shenzhen Geim Graphene Ctr, Shenzhen Int Grad Sch, Shenzhen, Peoples R China
2.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen Int Grad Sch, Shenzhen, Peoples R China
3.Shanghai Univ, Coll Sci, Shanghai, Peoples R China
4.Shanghai Univ, Inst Sustainable Energy, Shanghai, Peoples R China
5.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen, Peoples R China

Li, Nanrui,Jia, Tianqi,Liu, Yanru,et al. Super-three-dimensional lithiophilic Cu-based current collector for anode-free lithium metal battery[J]. MATERIALS TODAY ENERGY,2023,36.

Li, Nanrui.,Jia, Tianqi.,Liu, Yanru.,Ouyang, Yunfei.,Lv, Yao.,...&Cao, Yidan.(2023).Super-three-dimensional lithiophilic Cu-based current collector for anode-free lithium metal battery.MATERIALS TODAY ENERGY,36.

Li, Nanrui,et al."Super-three-dimensional lithiophilic Cu-based current collector for anode-free lithium metal battery".MATERIALS TODAY ENERGY 36(2023).