-
Patent Agency Ranking
公开(公告)号：US20240405219A1
公开(公告)日：2024-12-05
申请号：US18694115
申请日：2022-09-21
Inventor： Norihisa Yamamoto , Masahiro Soga , Naomichi Sato
Abstract: An electrode for secondary batteries according to one embodiment of the present invention is provided with a core body and a mixture layer that is formed on the core body. The mixture layer comprises a first mixture layer and a second mixture layer that is arranged on the first mixture layer. The tortuosity (τ2) of the second mixture layer is lower than the tortuosity (τ1) of the first mixture layer. The ratio (τ2/τ1) of the tortuosity (τ2) to the tortuosity (τ1) satisfies, for example, 0.3≤(τ2/τ1)
-
公开(公告)号：US20250105288A1
公开(公告)日：2025-03-27
申请号：US18730145
申请日：2023-01-11
Inventor： Masaki Hasegawa , Takashi Watanabe , Naomichi Sato
Abstract: In a negative electrode (12) for a secondary battery which is one example of an embodiment of the present invention, a negative electrode active substance layer (41) has a first active substance layer (41A) and a second active substance layer (41B). A tortuosity τ2 of the second active substance layer (41B) is smaller than a tortuosity τ1 of the first active substance layer (41A), and the B value calculated using equation 2 is equal to 1.7 to 1 divided by the A value. Equation 1: Tortuosity of negative electrode active substance layer (41)×thickness of negative electrode active substance layer (41)=A value Equation 2: Content ratio of Si-containing material to mass of active substance/A value=B value
-
公开(公告)号：US20240405214A1
公开(公告)日：2024-12-05
申请号：US18694128
申请日：2022-09-22
Inventor： Norihisa Yamamoto , Masahiro Soga , Naomichi Sato
Abstract: A secondary battery according to one embodiment of the present invention is provided with: a positive electrode that has a positive electrode core and a positive electrode mixture layer formed on said core; a negative electrode that has a negative electrode core and a negative electrode mixture layer formed on said core; and an electrolyte. The positive electrode mixture layer and the negative electrode mixture layer each includes a first mixture layer and a second mixture layer arranged on the first mixture layer. The curve ratio (τ2) of the second mixture layer is less than the curve ratio (τ1) of the first mixture layer.
-
公开(公告)号：US20240405205A1
公开(公告)日：2024-12-05
申请号：US18694129
申请日：2022-09-21
Inventor： Masahiro Soga , Norihisa Yamamoto , Naomichi Sato
Abstract: An electrode for secondary batteries according to one example of an embodiment is provided with a core body and a mixture layer that is formed on the core body. The mixture layer includes a first mixture layer and a second mixture layer disposed on the first mixture layer, and contains graphite and silicon material as active materials, and the content of the silicon material is greater than or equal to 0.5% by mass with respect to the active material. The ratio (τ2/τ1) of the tortuosity factor (τ2) of the second mixture layer to the tortuosity factor (τ1) of the first mixture layer is less than 1.1.
-
公开(公告)号：US20240387810A1
公开(公告)日：2024-11-21
申请号：US18693294
申请日：2022-09-20
Inventor： Naomichi Sato , Norihisa Yamamoto , Masahiro Soga
Abstract: This negative electrode for a rechargeable battery, according to an exemplary embodiment, comprises: a core; and a mixture layer formed on the core. The mixture layer includes: a first mixture layer; and a second mixture layer disposed on the first mixture layer. The first mixture layer and the second mixture layer have mutually different pore size distributions. In a case where a pore size corresponding to the maximum peak of the pore size distribution of the first mixture layer is defined as pore size A and a pore size corresponding to the maximum peak of the pore size distribution of the second mixture layer is defined as pore size B, the ratio of pore size A to pore size B (A/B) is greater than 0.01 and less than 1.
-
-
-
-
Search Results
5
records
(took 0.015 seconds)
