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Integrated Paper-Based Flexible Li-Ion Batteries Made by a Rod Coating Method
Linchao Zeng1, Shaohua Chen1, Minsu Liu1
1Shenzhen Geim Graphene Center (SGC) , Tsinghua-Berkeley Shenzhen Institute (TBSI), Tsinghua University , Shenzhen 518055 , P. R. China.
ACS Applied Materials & Interfaces
|November 23, 2019
Summary
Researchers developed scalable fabrication of flexible lithium-ion batteries (FLIBs) using commercial printing paper. This integrated design offers excellent structural stability and electrochemical performance, paving the way for industrial production.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Flexible lithium-ion batteries (FLIBs) are crucial for portable electronics.
- Current FLIB fabrication often involves complex methods unsuitable for industrial scale.
- Need for robust and scalable FLIB manufacturing processes.
Purpose of the Study:
- To develop a scalable fabrication method for integrated FLIBs.
- To utilize commercial printing paper as a flexible substrate.
- To achieve excellent electrochemical and structural stability in FLIBs.
Main Methods:
- Fabrication of FLIBs using LiFePO4 cathode, Li4Ti5O12 anode, graphene current collectors, and PVDF electrolyte.
- Assembly on commercial printing paper via Meyer rod coating.
- Double coating of PVDF for insulation and binding.
Main Results:
- Successfully fabricated integrated FLIBs with excellent flexibility.
- Demonstrated good electrochemical performance after 100 bending cycles.
- Achieved high internal structural stability of the fabricated FLIBs.
Conclusions:
- Commercial printing paper is a viable substrate for scalable FLIB fabrication.
- The developed Meyer rod coating method is suitable for industrial production.
- The integrated FLIBs show promise for applications requiring flexibility and durability.
