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公开(公告)号：US11552291B2
公开(公告)日：2023-01-10
申请号：US16678185
申请日：2019-11-08
发明人： Kazushige Nomoto
IPC分类号： H01M4/38 , H01M4/62 , H01M10/0525 , H01M10/0562
摘要： Provided is an anode configured to increase the ion conductivity of an anode layer and suppress a decrease in the energy density of the anode layer. Disclosed is an anode, wherein the anode is an anode comprising an anode layer for all-solid-state batteries; wherein the anode layer comprises an anode active material, a solid electrolyte and an ionic liquid; wherein the anode layer comprises at least one Si-based material selected from the group consisting of elemental Si and Si alloy as the anode active material; and wherein the ionic liquid is a solvated ionic liquid containing, in molar ratio, 1.5 mol or more of lithium bis(fluorosulfonyl)imide with respect to 1 mol of tetraglyme, or the ionic liquid is a solvated ionic liquid containing, in molar ratio, 2.0 mol or more of lithium bis(trifluoromethanesulfonyl)imide with respect to 1 mol of tetraglyme.
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2.发明公开公开(公告)号：US20240363846A1
公开(公告)日：2024-10-31
申请号：US18645649
申请日：2024-04-25
IPC分类号： H01M4/38 , H01M4/02 , H01M4/1395 , H01M4/62
CPC分类号： H01M4/386 , H01M4/1395 , H01M4/623 , H01M2004/027
摘要： Disclosed is a negative electrode mixture capable of improving cycle characteristics of a secondary battery. The negative electrode mixture of the present disclosure includes active material secondary particles and a sulfide solid electrolyte, wherein the active material secondary particles include a plurality of silicon particles and a polymer binding the silicon particles, and the polymer has a property of 0.37≤εA/εB (wherein εA is bending strain of molded body A, the molded body A is a molded body consisting of the polymer and the sulfide solid electrolyte and including 20% by volume of the polymer and having a filling ratio of 90%, εB is bending strain of molded body B, and the molded body B is a molded body consisting of the sulfide solid electrolyte and having a filling ratio of 90%).
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公开(公告)号：US11621463B2
公开(公告)日：2023-04-04
申请号：US17134768
申请日：2020-12-28
发明人： Shintaro Utsumi , Kazushige Nomoto
IPC分类号： H01M10/04 , H01M10/613 , H01M10/6554 , H01M10/658 , H01M50/574 , H01M50/581 , H01M50/562 , H01M50/583 , H01M50/578 , H01M50/54 , H01M10/655
摘要： Disclosed is a bipolar battery with which thermal deterioration of the electrode body due to the generation of heat of tabs can be suppressed. The bipolar battery of the present disclosure includes a first member, a second member, and a laminate electrode body arranged therebetween, wherein the laminate electrode body includes a first current collector constituting a lamination direction end surface, a second current collector constituting the other lamination direction end surface, at least one bipolar current collector arranged between the first current collector and the second current collector, and a plurality of power generating elements which are electrically connected in series via the bipolar current collector between the first current collector and the second current collector, the first current collector is arranged between the first member and the bipolar current collector, the second current collector is arranged between the second member and the bipolar current collector, the first current collector has a first tab, the second current collector has a second tab, an amount of heat generated by the first tab during energization of the battery is greater than an amount of heat generated by the second tab, the first member is a cooling member for cooling the first current collector, and a cooling performance of the first member is greater than a cooling performance of the second member.
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