Microvast makes solid-state battery breakthrough: US battery tech firm Microvast has made progress with the development of its True All-Solid-State Battery (ASSB) tech which it says will allow for longer driving ranges, faster charging times, and more EV safety, according to a press release published last week. The new tech is reportedly ideal for use in data center backup power systems, electric school buses, and advanced robotics. Unlike traditional lithium-ion batteries, ASSB tech does not rely on electrolytes, which allows for higher voltages — at least dozens of volts rather than 3.2V to 3.7V per cell — and a simplified structure. Microvast is now working to reach the pilot production study phase for its technology.

Japan is making strides of its own: A Japanese research team from Doshisha and TDK Corporation is working on a non-flammable quasi-solid-state lithium-ion battery, according to a statement on Monday. The team argues that their design is a safer alternative to all-solid-state batteries, like the one Microvast is working on, by combining liquid and solid electrolytes. ASSB can improve safety but struggles with lithium-ion transfer and interface wear and tear which are problems the team hopes to address.

China’s not being left behind: Another research team from the South China University of Technology has built a solid electrolyte interphase on the surface of lithium metal anodes, according to findings published in Nature. The interphase allows for higher electronic insulation, ionic conductivity, and chemical stability. The team hopes the technology can improve next-generation high-performance lithium batteries.

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