Space station astronaut spacewalk battery

  Two astronauts on the International Space Station implemented the second spacewalk this year on January 13th, installing a new lithium-ion battery for the solar power system of the orbital laboratory to replace the original nickel-hydrogen battery.

American astronaut Shane Kimbro and European astronaut Thomas Peske worked nearly six hours outside the cabin on the same day, successfully installed three adapter boards and connected the wires to three lithium-ion batteries.

The space station's solar power system uses a total of 48 nickel-metal hydride batteries to store electrical energy. According to plan, these batteries will be replaced by 24 lithium-ion batteries that are lighter, smaller, and more power-storing.

Before the space walk, the ground control personnel had operated the robot to remove the old nickel-metal hydride battery and moved the lithium-ion battery to the target position, which greatly accelerated the installation progress. As the work progressed better than expected, the two also overfulfilled several tasks, including photographing registration hardware to prepare for future spacewalks.

In the first spacewalk this year, which was implemented on January 6, Kimbro and another American astronaut, Peggy Whitson, have successfully installed three lithium-ion batteries.

The six lithium-ion batteries installed twice were sent to the space station by the Japanese "é¹³" cargo ship in December last year. The remaining 18 lithium-ion batteries are expected to be sent to space and completed in the next two to three years.

Of the 12 old batteries that were removed, nine will be removed from the space station with the Japanese "é¹³" cargo spacecraft later this month, and will be burned in the process of re-entry into the Earth's atmosphere, and three others will be temporarily stored outside the space station.

This spacewalk is the fourth time for Kimbro and Pascal's first spacewalk. Peske was also the first French astronaut to walk in space for 15 years. On the eve of his departure, he tweeted a song on "Eve" on Twitter and excitedly wrote that it would be "a great day."

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