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from: Kaohsiung
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from: hongkong
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from: yunlin
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from: Kaohsiung
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from: taizhong
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from: Kaohsiung
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| 2021-11-17 12:01:37 | onclick： | Japan has developed a high energy density lithium sulfur battery |
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According to Japanese media reports on the 16th, Tangqian Co., Ltd. of Japan and Kansai University have developed a light lithium sulfur battery with a mass and energy density nearly twice that of the existing lithium battery.
According to the "Nikkei Chinese network" of the Chinese version of Japan economic news, lithium sulfur battery is a battery with sulfur as the positive active material. Theoretically, under the condition of the same size, the capacity of lithium sulfur battery can reach 8 times that of traditional lithium battery, but there are some problems, such as low conductivity and easy dissolution of intermediate products in electrolyte. The newly developed lithium sulfur battery uses microporous carbon particles, which not only improves the conductivity, but also makes the intermediate products insoluble in the electrolyte. The lithium sulfur battery developed this time has a capacity of 8 ampere hours.
At present, the mass energy density of lithium batteries commonly used in pure electric vehicles is about 200 to 300 watt hours per kilogram, while the mass energy density of lithium sulfur batteries developed this time exceeds 370 watt hours per kilogram. Tangqian said that it hopes to increase the mass energy density of its lithium sulfur battery to 500 watt hours per kilogram by 2023.
This research is part of an electric aircraft project of Japan's new energy and industrial technology comprehensive development agency. It aims to develop a light-weight and high-capacity battery that can be installed on electric aircraft.
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