Lab Electrospinning System| Ultrathin Electrolyte Membranes With Reinforced ConcreteStructure for Fast-Charging Solid-State Lithium Metal Batteries
Views: 1909
Author: Nanofiberlabs
Publish Time: 2025-06-10
Origin: Ultrathin electrolyte membrane
Academician Zhongwei Chen et al., Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Advanced Materials (IF 27.4): Ultrathin Electrolyte Membranes with Reinforced Concrete Structure for Fast-Charging Solid-State Lithium Metal Batteries
Challenge: Realizing solid-state lithium (Li) metal batteries with fast-charging capability and desirable energy density remains a key challenge for emerging applications in drones and consumer electronics, which require solid electrolytes to maintain good ionic conductivity, mechanical integrity, and fast reaction kinetics.
Method: A team led by Academician Zhongwei Chen from the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, in collaboration with Prof. Xin Wang from Zhejiang Wanli University and South China Normal University, designed an ~8.4-µm-thick ultrathin solid electrolyte membrane with a "reinforced concrete" structure and accelerated ion hopping migration capability using an improved fabrication process combining electrospinning and casting. This enables fast-charging solid-state batteries.
Innovation 1: A rapid multi-dimensional Li-ion transport network was constructed based on nanosized ceramic conductor aggregation and polymer chain induction, enabling homogenized Li⁺ distribution at the interface through continuous, uniform, and stable plating/stripping processes, thereby enhancing interfacial stability and inhibiting dendrite growth.
Innovation 2: Benefiting from its structural advantages, the assembled solid-state lithium metal battery maintains an excellent capacity retention rate of 89.2% after 1300 cycles at 10 C.
Innovation 3: A 1.2 Ah pouch cell was also fabricated with a high energy density of 415.2 Wh kg⁻¹ and the ability to cycle at 5 C, demonstrating the great potential of solid-state batteries for practical applications in next-generation energy storage devices.
