China "Sea Wing" deep water glider’s waterproof battery successfully researched and developed 2014 2015 Launched the first deep water 40m depth waterproof battery. 2016 2017 2018 2019 Establish the deep water Power Material System Research Institute Establish independent deep water power industry chain 2020 2021 -40 °C battery successfully researched and developed. Deep water 80m depth waterproof battery was successfully developed and started mass production. Breakthrough offline waterproof power system Deep water 150m depth waterproof battery successfully developed Research the first self-developed IC Achieve mass production of consumer-grade full-featured waterproof batteries |