Sunwoda to improve solid-state battery prototypes with XTC
The cooperation framework agreement between Sunwoda’s subsidiary, Sunwoda Electric Vehicle Battery (SEVB) and XTC New Energy Materials aims to meet the commercial application demands of solid-state batteries in electric vehicles (EVs) and energy storage systems. The collaboration is to involve “innovations” such as composite cathode ion and electron conduction network construction, high-stability electrolyte film development, and dendrite-free, high-coulomb-efficiency lithium-metal anodes.
In addition to the development of materials for solid-state batteries, the two Chinese battery specialists have said they will also seek cooperation in the commercial sector when they consider “the time is right.”
While Sunwoda is already quite familiar with the production of lithium-ion and solid-state batteries, the company says it hopes that the use of XTC’s new materials will further increase the energy density and safety of the batteries.
Sunwoda has already achieved the development of first-generation semi-solid batteries with an energy density of 300Wh/kg. The company is currently testing a second generation with a density of 400Wh/kg. In parallel, Sunwoda has “tested a first-generation solid-state battery with an energy density of 400Wh/kg on a small scale”. The development of the second generation of solid-state batteries with an even higher energy density is underway. Sunwoda is working in parallel on the development and construction of production lines for solid-state batteries “to enable mass production by 2026”.
XTC New Energy Materials is a battery company founded in 2016 and based in the port city of Xiamen on the southeast coast of China. The company has so far been active in research and development as well as the production and sale of cathode materials almost exclusively within China, but had also announced a plant in France in 2023 in cooperation with Orano.
Solid-state batteries have reached significant attention in the last few years. In the USA this week, Factorial Energy scaled up the first of its Solstice solid-state battery cells developed with Mercedes-Benz to a capacity of 40 Ah.
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