-
1.发明申请公开(公告)号：US20230111757A1
公开(公告)日：2023-04-13
申请号：US17793549
申请日：2020-10-15
Inventor： Kohei Saito , Takayuki Nakatsutsumi , Atsushi Fukui
Abstract: A lithium primary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode contains a positive electrode material mixture including LixMnO2 where 0 ≤ x ≤ 0.05. The negative electrode contains at least one of metal lithium and a lithium alloy. The non-aqueous electrolyte contains an oxalate borate complex component and a cyclic imide component. In the non-aqueous electrolyte, the concentration of the oxalate borate complex component is 5.5 mass% or less, and the concentration of the cyclic imide component is 1 mass% or less. The mass ratio of the cyclic imide component to the oxalate borate complex component contained in the non-aqueous electrolyte is 0.02 or more and 10 or less.
-
Patent Agency Ranking
公开(公告)号：US12080891B2
公开(公告)日：2024-09-03
申请号：US17267253
申请日：2019-02-21
Inventor： Takahiro Takahashi , Kohei Saito
IPC: H01M4/62 , H01M4/02 , H01M4/13 , H01M10/0525
CPC classification number: H01M4/62 , H01M4/13 , H01M10/0525 , H01M2004/021 , H01M2004/028
Abstract: A positive electrode for a secondary battery which is an example of the embodiment of the present invention comprises a collector, a protective layer formed on at least one surface of the collector, and a composite material layer formed on the protective layer. The protective layer has a first region and a second region. The first region includes inorganic particles and a conductive material. The second region includes inorganic particles and substantially does not include a conductive material, or includes inorganic particles and a conductive material, the content of the conductive material being less than the content of the conductive material in the first region.
-
3.发明公开公开(公告)号：US20230369610A1
公开(公告)日：2023-11-16
申请号：US18246781
申请日：2021-04-27
Inventor： Kohei Saito , Takayuki Nakatsutsumi , Masanobu Takeuchi
CPC classification number: H01M6/14 , H01M4/505 , H01M4/06 , H01M4/66 , H01M4/134 , H01M4/70 , H01M2300/0017
Abstract: A lithium primary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode contains a positive electrode material mixture that contains LixMnO2 (0≤x≤0.05). The negative electrode contains at least one of metal lithium and a lithium alloy. The non-aqueous electrolyte contains at least one of a cyclic imide component and a parole component as a first component and an oxalate phosphate complex component as a second component. The concentration of the first component in the non-aqueous electrolyte is 1 mass % or less. The concentration of the second component in the non-aqueous electrolyte is 6 mass % or less. The mass ratio of the first component relative to the second component in the non-aqueous electrolyte is 0.02 or more and 10 or less.
-
公开(公告)号：US20210013516A1
公开(公告)日：2021-01-14
申请号：US16977579
申请日：2019-01-15
Inventor： Kohei Saito , Takahiro Takahashi , Hideharu Takezawa , Tomoki Shiozaki
IPC: H01M4/66
Abstract: This positive electrode includes: a positive electrode current collector; a positive electrode mixed material layer that is formed on at least one surface of the positive electrode current collector; and a protective layer which includes an insulating inorganic compound and a conductive material, and is interposed between the positive electrode current collector and the positive electrode mixed material layer. The protective layer includes secondary particles comprising agglomerated primary particles of the inorganic compound. The median value of the particle size of the secondary particles is 30 μm or less.
-
公开(公告)号：US11742492B2
公开(公告)日：2023-08-29
申请号：US16977579
申请日：2019-01-15
Inventor： Kohei Saito , Takahiro Takahashi , Hideharu Takezawa , Tomoki Shiozaki
CPC classification number: H01M4/667 , H01M4/362 , H01M4/624 , H01M4/666 , H01M2004/021 , H01M2004/028
Abstract: This positive electrode includes: a positive electrode current collector; a positive electrode mixed material layer that is formed on at least one surface of the positive electrode current collector; and a protective layer which includes an insulating inorganic compound and a conductive material, and is interposed between the positive electrode current collector and the positive electrode mixed material layer. The protective layer includes secondary particles comprising agglomerated primary particles of the inorganic compound. The median value of the particle size of the secondary particles is 30 μm or less.
-
公开(公告)号：US20210313579A1
公开(公告)日：2021-10-07
申请号：US17267253
申请日：2019-02-21
Inventor： Takahiro Takahashi , Kohei Saito
IPC: H01M4/62 , H01M4/13 , H01M10/0525
Abstract: A positive electrode for a secondary battery which is an example of the embodiment of the present invention comprises a collector, a protective layer formed on at least one surface of the collector, and a composite material layer formed on the protective layer. The protective layer has a first region and a second region. The first region includes inorganic particles and a conductive material. The second region includes inorganic particles and substantially does not include a conductive material, or includes inorganic particles and a conductive material, the content of the conductive material being less than the content of the conductive material in the first region.
-
-
-
-
-
Search Results
6
records
(took 0.016 seconds)
