Xiaona Li

In recent years, Xiaona Li's research has mainly focused on all-solid-state lithium batteries, developing various chloride solid electrolyte materials, and non-metallic polysulfide electrode materials such as sulfur-rich phosphorus sulfur molecules and selenium-sulfur solid solutions.

The effective use of secondary batteries to store clean energy in place of traditional fossil energy is an important guarantee for implementing the sustainable development strategy based on the "dual carbon" goals. Developing a 400Wh/kg large-capacity, high-safety all-solid-state pouch battery to overcome the global technical bottleneck of all-solid-state batteries is a landmark achievement.

Addressing key scientific issues, such as solid-phase ion conduction behavior, Xiaona has made a series of innovative achievements from three aspects: electrolyte materials, metallic lithium anodes, and high-energy cathodes combined with new all-solid-state battery systems, aiming for electrolytes with high stability and high ionic conductivity and all-solid-state batteries with both high energy density and high performance.

In terms of solid-phase conduction behavior, based on the decoupling of the solid ion conduction model, Xiaona proposed the migration entropy effect in the conduction process. In the aspect of solid electrolyte materials, she determined the structural phase diagram of the halide electrolyte material system, comprehensively clarifying the phase formation and ion conduction laws of anion close-packed halide electrolyte materials. Several commercially valuable ultra-low-cost halide solid electrolyte materials have also been developed.

In the field of high-energy-density all-solid-state battery systems, Xiaona collaborated with the GRINM (Guangdong) Institute for Advanced Materials and Technology and other partners to achieve the trial production and technical breakthrough of the world's first Ah-level all-solid-state pouch battery based on the halide system​.