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公开(公告)号：US20220238891A1
公开(公告)日：2022-07-28
申请号：US17647975
申请日：2022-01-13
发明人： Kiyoshi TANAAMI , Toshimitsu TANAKA , Yuji ISOGAI , Kazuki OKUNO , Akihisa HOSOE , Hiroshi TAKEBAYASHI
摘要： Provided is an electrode including: a current, collector; an electrode material mixture; and an electrode tab, the current collector being a porous metal body having a region A and a region B with a porosity lower than that of the region A, the region A having pores filled with the electrode material mixture, the electrode tab being fixed on the region B, the region A having a subregion A1 and a subregion A2 with a porosity lower than that of the subregion A1, the subregion A2 being more distant from the electrode tab than the subregion A1. Also provided is an electricity storage device including the electrode.
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公开(公告)号：US20210111411A1
公开(公告)日：2021-04-15
申请号：US17069841
申请日：2020-10-13
发明人： Kiyoshi TANAAMI , Yuji ISOGAI , Shintaro AOYAGI , Hideki SAKAI , Kazuki OKUNO , Akihisa HOSOE , Kikuo SENOO , Hiroshi TAKEBAYASHI
摘要： To provide an electrode for lithium ion secondary batteries, and a lithium ion secondary battery made using this electrode for lithium ion secondary batteries, which can sufficiently secure electron conductivity between a foam metal body and an electrode active material in an electrode for lithium ion secondary batteries which establish a foam metal body as the collector, reduce the resistance of a lithium ion secondary batter, and improve the durability.
A carbon layer consisting of carbon material is disposed on a surface of a foam porous body consisting of metal, and used as a collector. More specifically, an electrode for lithium ion secondary batteries includes a collector, and an electrode mixture filled into the collector, in which the collector is made to have a carbon layer consisting of carbon material on a surface of a foam porous body consisting of metal.-
公开(公告)号：US20210111398A1
公开(公告)日：2021-04-15
申请号：US17070935
申请日：2020-10-15
发明人： Kiyoshi TANAAMI , Yuji ISOGAI , Shintaro AOYAGI , Hideki SAKAI , Kazuki OKUNO , Akihisa HOSOE , Kikuo SENOO , Hiroshi TAKEBAYASHI
IPC分类号： H01M4/36 , H01M10/0525 , H01M4/80 , H01M4/66 , H01M2/16
摘要： To provide an electrode for lithium ion secondary batteries, and a lithium ion secondary battery made using this electrode for lithium ion secondary batteries, which can suppress an increase in electron resistance of a current collector area, and improve heat dissipation, in an electrode for lithium ion secondary batteries establishing a foam metal body as the collector.
In the electrode for lithium ion secondary batteries made using a foam porous body consisting of metal as a current collector, the electrode shape is rectangular, and a current collector region is made to span at least two adjacent sides.-
公开(公告)号：US20220216508A1
公开(公告)日：2022-07-07
申请号：US17645993
申请日：2021-12-26
IPC分类号： H01M10/0562 , H01M10/0525 , H01M4/80
摘要： To provide an electrode for a lithium ion secondary battery that can improve the diffusivity of lithium ions in an electrode material mixture when a metal porous body is used as a current collector, thereby improving the output characteristics and durability of the battery. A positive electrode 1 and a negative electrode 2, which are electrodes, respectively include a current collector 11 and a current collector 21 each including a metal porous body having communicating pores V, and an electrode material mixture 13 and an electrode material mixture 23, with which at least the pores V of the metal porous body are filled. At least an electrode active material and ionic conductor particles are dispersed in the electrode material mixtures 13 and 23. The ionic conductor particles are preferably oxide solid electrolyte particles.
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公开(公告)号：US20210376404A1
公开(公告)日：2021-12-02
申请号：US17332977
申请日：2021-05-27
发明人： Kiyoshi TANAAMI , Shintaro AOYAGI , Yuji ISOGAI
IPC分类号： H01M10/653 , H01M10/613 , H01M4/64 , H01M10/0525 , H01M10/654
摘要： To provide a battery cell structure capable of improving heat dissipation without degradation of an energy density and an obstacle to size reduction while an electrode layer of a battery cell has sufficient heat transfer properties. The present invention relates to a cell structure including a positive/negative electrode formed in such a manner that a conductive base member having a three-dimensional structure contains an electrode active material and a collector formed continuously to the positive/negative electrode. One surface of the collector is formed continuously in a longitudinal direction of the positive/negative electrode (across a large area), and the other surface of the collector is exposed in a longitudinal direction of the cell structure (across a large area).
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公开(公告)号：US20220231329A1
公开(公告)日：2022-07-21
申请号：US17577356
申请日：2022-01-17
IPC分类号： H01M10/0562 , H01M10/04 , H01M50/109 , H01M50/153 , H01M50/169 , H01M4/76 , H01M4/66
摘要： To provide a current collecting structure capable of reliably collecting current while maintaining a pressurized and constrained state of a coin-type all-solid-state battery. A coin-type all-solid-state battery includes a solid electrolyte layer; a pair of first electrode current collectors each including a metal porous body, the first electrode current collectors being respectively disposed on both sides of the solid electrolyte layer; a pair of second electrode current collectors each including a metal porous body, the second electrode current collectors being respectively disposed on outer sides of the first electrode current collectors; and a pair of lid members being respectively disposed on outer sides of the pair of second electrode current collectors.
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公开(公告)号：US20220013783A1
公开(公告)日：2022-01-13
申请号：US17368764
申请日：2021-07-06
发明人： Kiyoshi TANAAMI , Makiko TAKAHASHI , Tomohiro KINOSHITA , Shintaro AOYAGI , Yuji ISOGAI , Takashi MUKAI , Yuta IKEUCHI , Taichi SAKAMOTO , Naoto YAMASHITA
IPC分类号： H01M4/62 , H01M10/0525 , H01M4/134 , H01M4/38 , H01M4/139
摘要： An object is to provide a non-aqueous electrolyte secondary battery negative electrode that can suppress a deterioration in durability and improve energy density, and a non-aqueous electrolyte secondary battery including the same. A non-aqueous electrolyte secondary battery negative electrode, comprising: a collector formed of a porous metal body, and a negative electrode material disposed in pores of the porous metal body, wherein the negative electrode material comprises a negative electrode active material formed of a silicon-based material, a skeleton-forming agent comprising a silicate having a siloxane bond, a conductivity aid, and a binder.
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公开(公告)号：US20210257627A1
公开(公告)日：2021-08-19
申请号：US17167105
申请日：2021-02-04
摘要： Provided is an electrode including a metal foam as a current collector for obtaining a lithium-ion secondary battery having a high energy density. More particularly, provided is a lithium-ion secondary battery electrode that achieves improved input/output properties (power density) and improved durability, and a lithium-ion secondary battery including the lithium-ion secondary battery electrode. An electrode is formed by providing, in an electrode layer, a region having an excessive amount of an electrolytic solution by forming a region where a current collector made of a metal foam contains no electrode material mixture.
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公开(公告)号：US20220246942A1
公开(公告)日：2022-08-04
申请号：US17585586
申请日：2022-01-27
IPC分类号： H01M4/66 , H01M50/531 , H01M4/80 , H01M4/13 , H01M10/0525
摘要： There is provided an electrode including: a current collector; an electrode material mixture; a plate-shaped metal body having a through-hole formed therethrough; a resin provided inside the through-hole; and an electrode tab, the current collector being a porous metal body, the current collector having pores filled with the electrode material mixture, the electrode tab being an extending portion extending from the plate-shaped metal body, wherein the current collector has an inner region in which the through-hole of the metal plate-shaped body is located in top view. There is also provided an electricity storage device including the electrode.
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公开(公告)号：US20220231302A1
公开(公告)日：2022-07-21
申请号：US17572512
申请日：2022-01-10
发明人： Kiyoshi TANAAMI , Toshimitsu TANAKA , Yuji ISOGAI
摘要： Provided is an electrode including: a current collector; and an electrode material mixture, the current collector being a porous metal body, the current collector having pores filled with the electrode material mixture, the electrode material mixture including an electrode active material and porous aggregates of a conductive aid. Also provided is an electricity storage device including: the electrode; and an electrolytic solution.
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