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公开(公告)号:US09406975B2
公开(公告)日:2016-08-02
申请号:US14386759
申请日:2013-03-18
Inventor: Masayoshi Watanabe , Kaoru Dokko , Naoki Tachikawa , Mizuho Tsuchiya , Kazuhide Ueno , Azusa Yamazaki , Kazuki Yoshida , Ryuji Harimoto , Risa Nozawa , Toshihiko Mandai , Ce Zhang , Jun-Woo Park , Yu Onozaki , Masao Iwaya
IPC: H01M4/13 , H01M10/0567 , H01M4/38 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M4/58 , H01M4/62
CPC classification number: H01M10/0567 , H01M4/38 , H01M4/5815 , H01M4/622 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M2200/20 , H01M2220/20 , H01M2300/0025 , H01M2300/0034 , H01M2300/0037 , Y02E60/122 , Y02T10/7011
Abstract: An alkali metal-sulfur-based secondary battery, in which coulombic efficiency is improved by suppressing a side reaction during charge, and a reduction in discharge capacity by repetition of charge and discharge is suppressed and which has a long battery life and an improved input/output density, includes a positive electrode or a negative electrode containing a sulfur-based electrode active material; an electrolyte solution containing an ether compound such as THF and glyme and a solvent such as a fluorine-based solvent, wherein at least a part of the ether compound and the alkali metal salt forms a complex; and a counter electrode.
Abstract translation: 通过抑制充电时的副反应而提高库仑效率的碱金属硫系二次电池和通过重复充放电而导致的放电容量的降低被抑制,其具有长的电池寿命和改善的输入/ 输出密度包括含有硫系电极活性物质的正极或负极; 包含醚化合物如THF和甘醇二甲醚的电解质溶液和溶剂如氟基溶剂,其中至少一部分醚化合物和碱金属盐形成络合物; 和对电极。
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公开(公告)号:US10270090B2
公开(公告)日:2019-04-23
申请号:US15522154
申请日:2015-10-23
Inventor: Masayoshi Watanabe , Kaoru Dokko , Zhe Li , Shiguo Zhang
IPC: H01M4/36 , C01B17/26 , H01M4/136 , H01M10/052 , H01M4/38 , H01M4/58 , H01M4/587 , H01M4/62 , H01M4/04 , H01M4/02
Abstract: A production method for a cathode material of a lithium sulfur battery includes, in sequence: a step of preparing a first dispersed solution in which a carbon particle is dispersed in a lithium sulfate solution; a step of adding a solvent in the first dispersed solution, the solvent being a solvent in which lithium sulfate is insoluble; a step of separating a precursor particle from the first dispersed solution in which the solvent is added; and a step of changing the precursor particle into a cathode active material particle by heating the precursor particle under an inert atmosphere.
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公开(公告)号:US20150072248A1
公开(公告)日:2015-03-12
申请号:US14386759
申请日:2013-03-18
Inventor: Masayoshi Watanabe , Kaoru Dokko , Naoki Tachikawa , Mizuho Tsuchiya , Kazuhide Ueno , Azusa Yamazaki , Kazuki Yoshida , Ryuji Harimoto , Risa Nozawa , Toshihiko Mandai , Ce Zhang , Jun-Woo Park , Yu Onozaki , Masao Iwaya
IPC: H01M10/0567 , H01M10/052 , H01M10/0569
CPC classification number: H01M10/0567 , H01M4/38 , H01M4/5815 , H01M4/622 , H01M10/052 , H01M10/0568 , H01M10/0569 , H01M2200/20 , H01M2220/20 , H01M2300/0025 , H01M2300/0034 , H01M2300/0037 , Y02E60/122 , Y02T10/7011
Abstract: An alkali metal-sulfur-based secondary battery, in which coulombic efficiency is improved by suppressing a side reaction during charge, and a reduction in discharge capacity by repetition of charge and discharge is suppressed and which has a long battery life and an improved input/output density, includes a positive electrode or a negative electrode containing a sulfur-based electrode active material; an electrolyte solution containing an ether compound such as THF and glyme and a solvent such as a fluorine-based solvent, wherein at least a part of the ether compound and the alkali metal salt forms a complex; and a counter electrode.
Abstract translation: 通过抑制充电时的副反应而提高库仑效率的碱金属硫系二次电池和通过重复充放电而导致的放电容量的降低被抑制,其具有长的电池寿命和改善的输入/ 输出密度包括含有硫系电极活性物质的正极或负极; 包含醚化合物如THF和甘醇二甲醚的电解质溶液和溶剂如氟基溶剂,其中至少一部分醚化合物和碱金属盐形成络合物; 和对电极。
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