Enax

About Enax

Enax Inc. is a Japanese firm specializing in the development and production of high-performance lithium-ion batteries. Founded in April 1996 by Dr. Kazunori Ozawa, a pioneer who was instrumental in the mass production of the world's first lithium-ion batteries at Sony, the company was established to advance battery technology, particularly for automotive applications. Dr. Ozawa leveraged his extensive background in battery materials and manufacturing to position Enax as a key player in the research and development space.

The company's business model is centered on providing tailor-made battery solutions, offering a comprehensive service that spans from initial development and contracted prototyping to mass production and after-sales support. Enax serves a diverse client base that includes leading automotive manufacturers, railway companies, and national research institutes. The firm’s primary offerings include laminated pouch-type lithium-ion cells known for high power, rapid charging capabilities, and performance in extreme temperatures. It also designs and manufactures custom battery packs complete with in-house developed Battery Management Systems (BMS) for applications such as drones, mobile robots, and special-purpose vehicles.

Over the years, Enax has achieved significant milestones, including winning the Tokyo Metropolitan Venture Technology Grand Prix and entering into joint ventures and alliances with major corporations like Degussa AG (now Evonik), Continental AG, and Murata Manufacturing. The company has expanded its operations globally, establishing production facilities in China and offices in Europe and the USA. After a period as part of the Sekisui Chemical Group, Enax became independent in 2019 with support from the Daiwa Securities Group. Headquartered in Tokyo, with R&D and production sites in Yamagata Prefecture, Enax is also advancing next-generation battery technologies, including all-solid-state batteries and those using silicon and sulfur, to support the global shift toward carbon neutrality.