Energy storage system uses solid state battery

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By Nick Flaherty

Kyocera has launched a residential energy storage system (ESS) using a solid state battery from 24M. At the same time Kyocera has extended its commitment to 24M’s technology with plans to start full-scale mass production by the end of this year.

Kyocera began pilot production of 24M’s SemiSolid battery technology to validate its use in residential energy storage systems in the Japanese market in early 2019. After the pilot, Kyocera rolled out its full Enerezza product line with  5.0 kWh, 10.0 kWh, and 15.0 kWh capacities designed to meet diverse customer needs.

“Kyocera and our customers benefit from long battery life, unparalleled safety, and the low-cost approach enabled by 24M’s unique manufacturing process,” said Toshihide Koyano, Deputy General Manager of Corporate Solar Energy Group at Kyocera. “At Kyocera, we believe that 24M’s SemiSolid technology is the emerging standard for lithium-ion battery manufacturing. We are delighted to be the first company to deliver residential energy storage products using 24M’s novel process.”

The SemiSolid electrodes in the solid state battery use no binder, mixing electrolyte with active materials to form a clay-like slurry. This means the 24M process eliminates the need for a significant amount of inactive materials and capital-intensive processes like drying and electrolyte filling, dramatically reducing manufacturing cost.

“Kyocera’s launch of the Enerezza residential energy storage product line marks a significant milestone for 24M,” said Naoki Ota, President and CTO of 24M. “After many years of hard work, our technology is commercially available thanks to our dedicated partner Kyocera.”


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