Linqi Zong

TL;DR: A nanoporous polyimide film filled with a solid polymer electrolyte has high ionic conductivity and high mechanical strength, and an all-solid-state lithium-ion batteries fabricated with PI/PEO/LiTFSI solid electrolyte show good cycling performance and withstand abuse tests such as bending, cutting and nail penetration.

TL;DR: It is demonstrated that Si nanoparticles with controlled size can be massively produced directly from low grade Si sources through a scalable high energy mechanical milling process and provides a new strategy for cost-effective, energy-efficient, large scale synthesis of functional Si electrode materials.

TL;DR: Being able to produce particles with precise porosity control through scalable processes from low-grade materials, it is expected that this nanoperforation may play a role in the next generation lithium ion battery anodes, as well as many other potential applications such as optoelectronics and thermoelectrics.

TL;DR: This study develops a scalable and low cost process to produce porous silicon directly from low grade silicon through ball-milling and modified metal-assisted chemical etching, which can increase Si purity significantly and serve as promising candidates for many other energy applications, such as thermoelectrics and solar energy conversion devices.

TL;DR: It is found that the purity goes up with the size of Si particles going down, resulting in high purity at the sub–100-nm scale, and this nanopurification process provides a complimentary route to produce Si, with finely controlled size and purity, in a diverse set of applications.