solid state battery

Portable solar generators are making their way from the fringes of solar and energy storage to become a mainstream consumer item. The rise has been charged by a range of factors that have created massive brands. Where did the sector emerge from, who was buying before, who is buying now, and what’s next? Tristan Rayner reports.

California-based Yoshino Technology has developed portable batteries using solid-state Li-NCM cell technology. The four variants come with power outputs of 330 W, 660 W, 2,000 W, and 4,000 W.

In other news, QuantumScape announces 24-layer cell and new sampling agreements with car makers, Dutch solar car specialist Lightyear enters into technology sharing partnership with Koenigsegg, and Toyota Motor invests big in EV manufacturing in Indonesia.

Ion Storage System’s $30 million capital raising will go toward scaling up its solid-state battery cell production facility in the US state of Maryland, with aims to produce 10 MWh per year by the end of 2023, for a range of applications.

Volkswagen has started constructing its first battery cell factory in Germany, while Northvolt has raised $1.1 billion for a new battery gigafactory. Mercedes-Benz, meanwhile, has agreed to send second-life batteries to Canada for use in stationary storage applications.

U.S-based solid-state battery start-up Sparks has opened a pilot plant for its patented lithium battery technology based on zero cobalt cathodes. The company wants to challenge China’s dominance in next-gen battery development.

Researchers from Tokyo Tech, AIST, and Yamagata University have demonstrated drastic reduction of resistance at the interface between the positive electrode and solid electrolyte of an all-solid-state lithium battery is achievable by annealing the entire battery cell.

Scientists in Germany developed a new process for manufacturing battery electrodes, that they say could be both more cost effective and environmentally friendly compared to current technologies. The technique could be applied to a range of different battery materials/chemistries and its creators say they are in discussion with a number of battery cell manufacturers regarding pilot production.

Scientists in the U.S. used sophisticated imaging techniques to observe previously unknown defects in the crystalline structure of a solid-state electrolyte. The scientists theorize that these defects could play an important role in the electrolyte’s performance, and that designing them more carefully into the material could have impressive results.

Scientists at the Georgia Institute of Technology in the U.S. used x-ray imaging to observe cracks forming in a solid state lithium battery, a discovery they say changes the understanding of performance of solid state batteries and which could lead to more durable systems.