中国空间站开展锂离子电池在轨实验

Group 1 - The project "In-situ Electrochemical Optical Research of Lithium-ion Batteries for Space Applications" has been initiated aboard the Chinese space station, with astronauts from the Shenzhou 21 mission conducting experiments [2] - Lithium-ion batteries are considered the "energy heart" of modern space missions due to their high energy density, long cycle life, and safety reliability [4] - The research focuses on the distribution of chemical substances within the electrolyte, which is a core factor determining battery power and lifespan [4] Group 2 - The unique microgravity environment of space allows for a clearer study of the internal processes of batteries, such as ion transport and insertion/extraction, which are difficult to isolate on Earth due to the intertwining of gravitational and electric fields [4] - The project aims to observe and analyze the impact of microgravity on key processes within the battery, providing scientific evidence to enhance the efficiency of spacecraft energy systems [5] - The experiment involves in-situ optical observation of lithium-ion batteries under microgravity, capturing the entire growth process of lithium dendrites and ensuring precise execution and monitoring of the experiments [4][5] Group 3 - The advancement of this experiment is expected to break through the cognitive bottleneck of the coupling effects between gravitational and electric fields, further developing electrochemical fundamental theories [5] - The findings will provide a basis for optimizing current on-orbit battery systems and designing the next generation of high-energy, high-safety space batteries [5]