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Robot Submarine Will be Japan Resin Battery’s First Customer

  • Kawasaki Heavy’s sub is testing APB’s all-polymer battery
  • The batteries promise cost savings, improvements in safety
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A new kind of resin-based battery developed in Japan moved a step closer to a real-world debut -- in a robot submarine.

Kawasaki Heavy Industries Ltd. is testing an autonomous underwater vehicle powered by an all-polymer battery made by APB Corp., the battery maker said in a statement on Monday. The Japanese industrial giant plans to commercialize the sub, which measures about 3 meters (10 feet) in length and weighs 7 tons, for use in subsea pipeline inspection by March 2022.