@inproceedings{oai:jaxa.repo.nii.ac.jp:00008154, author = {今村, 文隆 and 井上, 剛文 and 吉田, 浩明 and 水谷, 実 and Imamura, Nobutaka and Inoue, Takefumi and Yoshida, Hiroaki and Mizutani, Minoru}, book = {第22回宇宙エネルギーシンポジウム 平成14年度, The 22nd ISAS Space Energy Symposium March 12, 2003}, month = {May}, note = {High energy density Li-ion battery is expected for the next generation satellite and the other space usage. Japan Storage Battery Co., Ltd. (JSB) has developed two types of large capacity Li-ion cells through cooperation with Mitsubishi Electric Corporation (MELCO). One is satellite type (50, 100 and 175 Ah) for long life applications and the other is rocket type (55, 110 and 190 Ah) for high energy applications. The energy density of the cells are 136 Wh/kg to 164 Wh/kg. They correspond to the 1.5 to 2.0 times of Ni-H2 cell. The cells have completely sealed structure achieved with ceramic hermetic seal in order to endure the space environment. It has been confirmed that the cells performance satisfies space application requirements by many tests and analysis as follows: For environmental characteristics evaluation, various environmental tests such as vibration tests, thermal vacuum tests, irradiation tests and so on have been performed for the cells. It is found that the cells satisfy general environmental requirements of space applications. 100 Ah Li-ion cells have been qualified for space applications by MELCO. For cell life evaluation, the calendar life test and the cycle life test have been performed in matrix of temperature, state of charge (SOC), and depth of discharge (DOD). As the results, experimental equations for capacity fading has been found out. The equations have been verified by comparing capacity estimation curve and test data. By using the experimental equations, it was tried to calculate capacity fading for general geostationary orbit (GEO) and low earth orbit (LEO) satellites applications. It was confirmed that the estimation suggested the 100 Ah Li-ion cells satisfied requirements for their use in general satellites., 資料番号: AA0045915004}, pages = {16--20}, publisher = {宇宙科学研究所, The Institute of Space and Astronautical Science (ISAS)}, title = {宇宙用リチウムイオン電池の開発}, year = {2003} }