-
公开(公告)号：US11791467B2
公开(公告)日：2023-10-17
申请号：US16636818
申请日：2018-07-05
Inventor： Hajime Nishino , Satoko Motomatsu , Kazuhiro Yoshii , Takao Sato , Tomoki Shiozaki
IPC: H01M4/62 , H01M4/36 , H01M4/66 , H01M10/0525 , H01M50/46 , H01M50/531 , H01M50/595 , H01M50/534 , H01M4/02
CPC classification number: H01M4/626 , H01M4/366 , H01M4/662 , H01M10/0525 , H01M50/46 , H01M50/531 , H01M50/534 , H01M50/595 , H01M2004/027 , H01M2004/028
Abstract: A nonaqueous electrolyte secondary battery with a positive electrode having a positive electrode current collector and a positive electrode active material layer that is supported by a first main surface and a second main surface. The first main surface includes a first exposed section on which the positive electrode active material layer is not arranged. A positive electrode lead is connected to the first exposed section and includes an extension section and an overlapping section. At least a portion of the first exposed section, along with at least a portion of the overlapping section, is covered with a positive electrode insulating tape which has a base, a first layer that adheres to the first exposed section and to the overlapping section, and a second layer interposed between the base and the first layer; and the second layer expands when heated above a threshold.
-
公开(公告)号：US11437613B2
公开(公告)日：2022-09-06
申请号：US16733615
申请日：2020-01-03
Inventor： Takahiro Takahashi , Hideharu Takezawa , Tomoki Shiozaki
Abstract: This secondary battery positive electrode includes: a positive electrode current collector; an intermediate layer provided on the positive electrode current collector; and a positive electrode mixture layer provided on the intermediate layer and including a positive electrode active material, wherein the intermediate layer includes a conductive material, a metal phosphate, and an inorganic compound which is not a metal phosphate and has a lower oxidizing power than the positive electrode active material.
-
公开(公告)号：US20210376333A1
公开(公告)日：2021-12-02
申请号：US17404090
申请日：2021-08-17
Inventor： Tomoki Shiozaki , Yuji Oura , Hajime Nishino
IPC: H01M4/66 , H01M50/531 , H01M50/572 , H01M4/13 , H01M4/40 , H01M4/46 , H01M10/0525
Abstract: A secondary battery includes: a positive electrode having a positive-electrode current collector and a positive-electrode active-material layer; a negative electrode having a negative-electrode current collector and a negative-electrode active-material layer; a electrolyte; and an insulating tape covering a portion of the positive electrode. Furthermore, the positive-electrode current collector has an exposed section that the positive-electrode active-material layer is not disposed. In addition, at least a portion of the exposed section is covered with the insulating tape; the insulating tape has a substrate material layer and an adhesive layer; and the adhesive layer includes an adhesive agent and an insulating inorganic material.
-
公开(公告)号：US20200020924A1
公开(公告)日：2020-01-16
申请号：US16580206
申请日：2019-09-24
Inventor： Hideharu Takezawa , Daisuke Furusawa , Yuji Oura , Takahiro Takahashi , Takahito Nakayama , Tomoki Shiozaki
Abstract: A positive electrode is disclosed including a positive electrode collector containing aluminum, a positive electrode mixture layer containing a positive electrode active substance constituted from a lithium transition metal oxide, and a protective layer provided between the positive electrode collector and the positive electrode mixture layer. The protective layer contains inorganic compound particles and a conductive material, and has a recessed structure wherein the positive electrode mixture layer is recessed into the protective layer.
-
公开(公告)号：US20180159136A1
公开(公告)日：2018-06-07
申请号：US15886417
申请日：2018-02-01
Inventor： Tomoki Shiozaki , Yuji Oura , Hajime Nishino
CPC classification number: H01M4/661 , H01M2/26 , H01M2/263 , H01M2/34 , H01M4/13 , H01M4/40 , H01M4/463 , H01M10/04 , H01M10/052 , H01M10/0525 , H01M10/0587 , H01M2004/025 , H01M2004/028
Abstract: A secondary battery includes: a positive electrode having a positive-electrode current collector and a positive-electrode active-material layer; a negative electrode having a negative-electrode current collector and a negative-electrode active-material layer; a electrolyte; and an insulating tape covering a portion of the positive electrode. Furthermore, the positive-electrode current collector has an exposed section that the positive-electrode active-material layer is not disposed. In addition, at least a portion of the exposed section is covered with the insulating tape; the insulating tape has a substrate material layer and an adhesive layer; and the adhesive layer includes an adhesive agent and an insulating inorganic material.
-
Patent Agency Ranking
公开(公告)号：US11626614B2
公开(公告)日：2023-04-11
申请号：US16543779
申请日：2019-08-19
Inventor： Takahiro Takahashi , Tomoki Shiozaki
IPC: H01M50/531 , H01M10/0525 , H01M10/058 , H01M50/572 , H01M50/536 , H01M50/534 , H01M50/538
Abstract: A positive electrode for this non-aqueous electrolyte secondary battery is provided with: a positive electrode current collector; a positive electrode active material layer formed on the positive electrode current collector; a positive electrode tab connected to an exposed portion at which the positive electrode current collector is exposed and on which the positive electrode active material layer is not formed; and a protective layer covering the exposed portion and the positive electrode tab on the exposed portion. The protective layer is composed of a base material including a curable resin.
-
公开(公告)号：US11527757B2
公开(公告)日：2022-12-13
申请号：US16580195
申请日：2019-09-24
Inventor： Takahito Nakayama , Tomoki Shiozaki , Hideharu Takezawa , Daisuke Furusawa , Yuji Oura , Takahiro Takahashi
Abstract: A positive electrode used in a secondary cell that is an example of the present embodiment is provided with a positive electrode collector, an intermediate layer formed on the positive electrode collector, and a positive electrode mixture layer formed on the intermediate layer. The positive electrode mixture layer has a thermally expandable material and a positive electrode active material. The thermally expandable material content of the positive electrode mixture layer is at least 0.1% by mass and less than 5% by mass. The intermediate layer has an insulating inorganic material and a conductive agent. The insulating inorganic material content of the intermediate layer is 80-99% by mass.
-
公开(公告)号：US20200152990A1
公开(公告)日：2020-05-14
申请号：US16744574
申请日：2020-01-16
Inventor： Yuji Oura , Tomoki Shiozaki , Hideharu Takezawa
Abstract: This positive electrode for secondary batteries is provided with: a positive electrode collector which has a plurality of recesses and projections in the surface; an intermediate layer provided on the surface of the positive electrode collector having the recesses and projections; and a positive electrode mixture layer provided on the intermediate layer and contains a positive electrode active material. This positive electrode being configured such that: the intermediate layer contains conductive material particles and inorganic material particles that have a higher resistance than the positive electrode active material: and both the ratio of the central particle diameter of the conductive material particles to the average depth of the recesses and projections of the positive electrode collector and the ratio of the central particle diameter of the inorganic material particles to the average depth of the recesses and projections of the positive electrode collector are 5:6 or less.
-
公开(公告)号：US20200020921A1
公开(公告)日：2020-01-16
申请号：US16582312
申请日：2019-09-25
Inventor： Tomoki Shiozaki , Daisuke Furusawa , Yuji Oura , Takahiro Takahashi , Takahito Nakayama , Hideharu Takezawa
IPC: H01M2/26 , H01M4/131 , H01M10/0587 , H01M10/0525 , H01M4/62
Abstract: According to the present invention, a positive electrode is provided with: a positive electrode current collector; a positive electrode active material layer which contains a positive electrode active material that is configured from a lithium transition metal oxide; a protective layer which is arranged between the positive electrode current collector and the positive electrode active material layer; and a positive electrode tab which is bonded with the positive electrode current collector at a positive electrode tab bonding part where the positive electrode active material layer and the protective layer are not formed so that the positive electrode current collector is exposed. An end edge of the positive electrode active material layer facing the positive electrode tab and an end edge of the protective layer facing the positive electrode tab are arranged in different positions in the longitudinal direction of the positive electrode.
-
10.发明申请公开(公告)号：US20200006778A1
公开(公告)日：2020-01-02
申请号：US16568826
申请日：2019-09-12
Inventor： Kazuki Endo , Tomoki Shiozaki , Yuji Oura
IPC: H01M4/66 , H01M4/131 , H01M4/62 , H01M4/485 , H01M10/0525
Abstract: A positive electrode is provided with: a positive electrode current collector constituted of aluminum as the main component; a positive electrode mixture layer formed on the positive electrode current collector aid containing a lithium-containing transition metal oxide; and a protective layer interposed between the positive electrode current collector and the positive electrode mixture layer. The protective layer contains inorganic particles, a conductive agent, and a binder material. In the positive electrode, the peel strength between the positive electrode current collector and the protective layer is higher than the peel strength between the protective layer and the positive electrode mixture layer.
-
-
-
-
-
-
-
-
-
Search Results
38
records
(took 0.019 seconds)
