China's research vessel Tansuo-2 completes deep sea mission(1/4)

Photo released on Oct. 27, 2022 shows China's scientific research ship Tansuo-2 conducting deep sea exploration. (Photo provided to China News Service)

China's scientific research ship Tansuo-2, the second mother ship of China's new deep sea manned submersible Fendouzhe (Striver), returned to the port in Sanya, south China's Hainan Province, after completing its ocean mission.

The test has achieved the integration of megawatt-hour (1000kWh) solid-state lithium-metal batteries for the first time.

Photo released on Oct. 27, 2022 shows China's scientific research ship Tansuo-2, the second mother ship of China's new deep sea manned submersible Fendouzhe (Striver). (Photo provided to China News Service)

Photo shows a glider deployed to conduct deep sea expedition. (Photo provided to China News Service)

Photo released on Oct. 27, 2022 shows China's scientific research ship Tansuo-2 conducting deep sea exploration. (Photo provided to China News Service)