Power Pioneer Invents New Battery That’s 90% Cheaper Than Lithium-Ion

An anonymous reader quotes a report from Bloomberg: Lithium-ion batteries play a central role in the world of technology, powering everything from smartphones to smart cars, and one of the people who helped commercialize them says he has a way to cut mass production costs by 90% and significantly improve their safety. Hideaki Horie, formerly of Nissan Motor Co., founded Tokyo-based APB Corp. in 2018 to make “all-polymer batteries” — hence the company name. The making of a cell, every battery’s basic unit, is a complicated process requiring cleanroom conditions — with airlocks to control moisture, constant air filtering and exacting precision to prevent contamination of highly reactive materials. The setup can be so expensive that a handful of top players like South Korea’s LG Chem Ltd., China’s CATL and Japan’s Panasonic Corp. spend billions of dollars to build a suitable factory. Horie’s innovation is to replace the battery’s basic components — metal-lined electrodes and liquid electrolytes — with a resin construction. He says this approach dramatically simplifies and speeds up manufacturing, making it as easy as “buttering toast.” It allows for 10-meter-long battery sheets that can be stacked on top of each other “like seat cushions” to increase capacity, he said. Importantly, the resin-based batteries are also resistant to catching fire when punctured. In March, APB raised $74 million, which is tiny by the wider industry’s standards but will be enough to fully equip one factory for mass production slated to start next year. Horie estimates the funds will get his plant in central Japan to 1 gigawatt-hour capacity by 2023.