【央广网】中国空间站开展锂离子电池在轨实验

Core Insights - The project "In-situ Electrochemical Optical Research of Lithium-ion Batteries for Space Applications" has commenced aboard the space station, with astronauts from the Shenzhou 21 mission conducting experiments [1] - Lithium-ion batteries are crucial for modern space missions due to their high energy density, long cycle life, and safety [1] - The research aims to understand the impact of microgravity on battery performance, particularly the distribution of chemical substances in the electrolyte, which is critical for battery power and lifespan [1] Group 1 - The unique microgravity environment of space allows for a clearer study of ion transport and insertion/extraction processes within batteries, overcoming limitations faced in ground experiments [1] - However, microgravity also presents challenges, such as significant differences in liquid behavior within the battery, which may lead to decreased performance and increased safety risks [1] - The project aims to provide scientific evidence to enhance the efficiency of energy systems in spacecraft by directly observing the effects of microgravity on key internal processes of batteries [1] Group 2 - The load expert conducted in-situ optical observation experiments of lithium-ion batteries in microgravity, capturing the entire growth process of lithium dendrites and performing precise electrochemical experiments [2] - The subjective initiative of the load expert is crucial for discovering new phenomena and achieving significant results in the project [2] - The advancement of this lithium-ion battery experiment is expected to break through the cognitive bottleneck of the interaction between gravitational and electric fields, further developing electrochemical theory and providing a basis for optimizing current battery systems in orbit and designing next-generation high-energy, high-safety space batteries [2]