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Updated: May 29, 2025
Focused Ion Beam Fabrication of LiPON-based Solid-state Lithium-ion Nanobatteries for In Situ Testing
Published on: March 7, 2018
An integrated optimization strategy by Joule heating technique enabling rapid fabrication of robust
Xiangming Cui1, Xin Chen1, Changzheng Lin1
1Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049 PR China.
Abstract:
The advancement of high-energy-density and intrinsically safe all-solid-state lithium metal batteries (ASSLMBs) is crucial for the comprehensive electrification of energy consumption. Nevertheless, intrinsic defects in solid-state electrolytes (SSEs) and suboptimal interfacial contacts often lead to uncontrolled dendritic growth during practical battery operation. To address these challenges, this study proposes an integrated optimization strategy for bulk-phase defects and interfacial contacts of Li1.3Al0.3Ti1.7(PO4)3 (LATP) SSEs based on ultra-fast Joule heating sintering (UHS) technique. Introducing specific sintering auxiliaries and a dual-process sintering approach can achieve the rapid densification of LATP SSEs. Additionally, the thermal pulse welding (TPW) technique for the integrated anode/SSE/cathode further provides superior SSE/electrode interface contact, facilitating the in-situ formation of a continuous ion-conducting network for improved electrochemical kinetics. The optimized Li||LATP||NCM811 ASSLMBs demonstrate exceptional specific capacity (185.9 mAh/g at 0.2 C) and robust cycling stability (90.9 % capacity retention after 100 cycles). This integrated optimization strategy can offer a critical technical reference for the rapid fabrication of high-performance ASSLMBs.
