Room-temperature all-solid-state lithium metal batteries based on ultrathin polymeric electrolytes

Feng, Jianwen1; Wang, Jiayi1; Gu, Qiao1; Thitisomboon, Wadeelada1; Yao, Dahua2; Deng, Yonghong2; Gao, Ping1

2022-06-01

10.1039/d2ta02023h

Journal of Materials Chemistry A   Impact Factor & Quartile

2050-7488

2050-7496

Flexible all solid-state batteries that combine polymer electrolytes and lithium metal are required for powering wearable electronic devices as they embody high flexibility, safety and energy density. However, it has been challenging to develop room temperature flexible solid-state batteries because of the low ionic conductivities of polymeric ion conductors. Here, we report a highly conductive polymer electrolyte based on lowly viscous polyethylene oxide ion conductors confined inside an ultrastrong and ultrathin nanofibrous polyethylene membrane. The newly developed solid polymer electrolyte exhibits high room temperature charge transfer conductance (0.07 S) and excellent compatibility with Li metal (cycling time > 3500 hours at 0.1 mA cm(-2)) at 30 degrees C. Large-scale molecular dynamics simulations show that the high ionic conductivity is because of the enhanced segmental mobility of confined PEO inside the nanomembrane and the strong charge-dipole interactions between the PEO and lithium ions. This work provides a viable solution toward room temperature workable solid-state batteries that meet the requirements for wearable electronic devices.

SCI ; EI

English

Corresponding

Theme-based Research Scheme of the University Grants Committee of Hong Kong[T23-601/17-R] ; Guangzhou government Shenzhen-Hong Kong Innovation Circle[SZSTI20EG14]

Chemistry ; Energy & Fuels ; Materials Science

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

WOS:000814235800001

ROYAL SOC CHEMISTRY

20222812342945

Charge transfer ; Ionic conduction in solids ; Ions ; Lithium compounds ; Lithium-ion batteries ; Molecular dynamics ; Polyelectrolytes ; Polyethylene oxides ; Polyethylenes ; Room temperature ; Solid electrolytes ; Solid state devices ; Solid-State Batteries ; Thermoelectric equipment ; Wearable technology

Thermoelectric Energy:615.4 ; Thermodynamics:641.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Secondary Batteries:702.1.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Organic Polymers:815.1.1 ; Polymer Products:817.1

Web of Science

1.Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Adv Mat Thrust, Funct Hub, Clear Water Bay, Hong Kong, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Feng, Jianwen,Wang, Jiayi,Gu, Qiao,et al. Room-temperature all-solid-state lithium metal batteries based on ultrathin polymeric electrolytes[J]. Journal of Materials Chemistry A,2022,10:13969-13977.

Feng, Jianwen.,Wang, Jiayi.,Gu, Qiao.,Thitisomboon, Wadeelada.,Yao, Dahua.,...&Gao, Ping.(2022).Room-temperature all-solid-state lithium metal batteries based on ultrathin polymeric electrolytes.Journal of Materials Chemistry A,10,13969-13977.

Feng, Jianwen,et al."Room-temperature all-solid-state lithium metal batteries based on ultrathin polymeric electrolytes".Journal of Materials Chemistry A 10(2022):13969-13977.