500 wat hour / Kilogramweight lithium air cell
1.The Materials and Material Research Organization (hereinafter referred to as "NIMS") is a 500 -wat hour / kilogram class 500 wattage density (wat hour / kilogram) of the current lithium -ion battery in collaboration with SoftBank Co., Ltd. (hereinafter "SoftBank").Lithium air cells have been developed to achieve a charging / discharge reaction at room temperature.In addition, a comprehensive survey of the performance of lithium air cells reported around the world has shown that the lithium air cell developed by NIMS is the world's highest level from the viewpoint of energy density and cycle.The results of this research are a major step toward the practical use of lithium air cells.
2.Lithium air cells are the "ultimate secondary battery", which has several times the theoretical weight energy density of lithium -ion batteries, and is light and large, so a wide range of fields, from drones, electric vehicles, and household recognition systems.It is expected to be applied to.NIMS has been conducting basic research with the support of ALCA next -generation batteries (hereinafter referred to as "ALCA -Spring"), which is a project for the purpose of accelerating high -capacity storage batteries by the Science and Technology Agency (JST).However, in 2018, we established the "NIMS -SoftBank Technical Development Center" in collaboration with SoftBank, and have been conducting research aimed at practical use for mobile phone base stations, IoT, and HAPS (HIGH ALTITITUDE PLATFORM STATION).rice field.While lithium air cells theoretically indicate very high energy density, in batteries that have been commonly used in conventional lithium air cell characteristics evaluation, materials that are not directly involved in battery reactions such as separatators and electrolytes.As it accounts for a large percentage of battery weight, there are limited examples of producing and evaluating lithium air cells with high energy density.
3.The research team has developed a unique material that can maximize the high potential of lithium air cells through his previous research on ALCA -Spring.Furthermore, the research team has a 500 watts of 500 watts that exceeds the current lithium -ion battery by applying high -energy density lithium air cell -cell production technology developed at the NIMS -SoftBank Advanced Technology Development Center to these materials./ Kilogram -class lithium -free electricity reaction at the room temperature of air cells has been realized for the first time in the world.* NIMS survey (as of December 14, 2021)
4.In the future, by installing the improved material currently under development in 500 watts / kilogram -class lithium air cells, a significant increase in cycle life will be increased, and the early practical use of lithium air cells at the NIMS -SoftBank Advanced Technology Development Center.Connect to.
5.As part of the ALCA -Spring and NIMS -SoftBank Advanced Technology Development Center, this study is mainly research and development of the Advanced Technology Development Center, Aioichi Matsuda, Aioi Ono, NIMS Posdoc, Shoji Yamaguchi, Kohei Uozaki (NIMS -SoftBank (NIMS -SoftBank)It was conducted by the research team of the Advanced Technology Development Center and the director of the center).
6.The results of this research will be posted online in the "Material Horizon" magazine on December 15, 2021, Japan time.