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公开(公告)号：EP4391113A1
公开(公告)日：2024-06-26
申请号：EP23218730.2
申请日：2023-12-20
发明人： SUYAMA, Hiroshi , MIKI, Hidenori , SATO, Shigeki
CPC分类号： H01M2300/000220130101 , H01M10/36 , H01M2004/02720130101 , H01M4/52 , H01M4/50 , H01M4/583
摘要： Disclosed are a novel inorganic compound capable of functioning as a negative electrode active material of an aqueous battery, and an aqueous battery using the same. The aqueous battery of the present disclosure comprises a positive electrode, an aqueous electrolyte solution and a negative electrode, the aqueous electrolyte solution contains water and alkali metal ions or zinc ions, the negative electrode contains an inorganic compound as a negative electrode active material, and the inorganic compound has a crystal structure belonging to a space group I23.
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公开(公告)号：EP4283714A1
公开(公告)日：2023-11-29
申请号：EP23162915.5
申请日：2023-03-20
发明人： SUYAMA, Hiroshi
IPC分类号： H01M4/24 , H01M10/24 , H01M10/28 , H01M50/417 , H01M50/44 , H01M50/451 , H01M50/454 , H01M50/457
摘要： The present disclosure provides a zinc secondary battery with an improved cycle characteristic. The zinc secondary battery of the disclosure has a positive electrode layer, a covering film-attached porous film layer and a negative electrode layer in that order, with an electrolyte solution impregnating the positive electrode layer, the covering film-attached porous film layer and the negative electrode layer, wherein the covering film-attached porous film layer has a porous film layer and a porous covering film formed on the porous film layer, the covering film-attached porous film layer is directly adjacent to the negative electrode layer, and the porous covering film comprises at least one compound selected from the group consisting of Mg(OH) 2 , Mg 2 P 2 O 7 , MgTiO 3 , MgCO 3 , Ca(OH) 2 , CaSO 4 , Ca 2 P 2 O 7 , SrTiO 3 , SrF 2 , TiO 2 , SnO 2 , Zr(OH) 4 and ZrO 2 .
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公开(公告)号：EP4443559A1
公开(公告)日：2024-10-09
申请号：EP24165312.0
申请日：2024-03-21
发明人： SUYAMA, Hiroshi , SATO, Shigeki , TANAKA, Bunta
CPC分类号： H01M2300/000220130101 , H01M4/50 , H01M10/22 , H01M10/36
摘要： The aqueous secondary battery of the present disclosure comprises:
a positive electrode active material layer, an aqueous electrolyte, and a negative electrode active material layer, wherein
the aqueous electrolyte contains an aqueous solvent and potassium polyphosphate which has two or more elemental phosphorus, and any one of potassium ion, proton, hydroxide ion, and polyphosphoric anion is a carrier ion,
a positive electrode active material contained in the positive electrode active material layer has a monoclinic crystal structure represented by space group C2/m, is represented by composition formula MnO2·AxBy(H2O)z, and the A, B, and H2O are present in a space interposed between layers composed of Mn-O octahedrons,
A is an alkali metal or alkali rare earth metal,
B is an anion, 0-
公开(公告)号：EP4418372A1
公开(公告)日：2024-08-21
申请号：EP24157677.6
申请日：2024-02-14
IPC分类号： H01M6/04
CPC分类号： H01M2300/001420130101 , H01M2300/000220130101 , H01M6/045
摘要： Disclosed is an aqueous battery, in which not only a predetermined aqueous electrolyte solution is adopted, but also an ionic conduction path between positive and negative electrodes is ensured. The aqueous battery of the present disclosure includes a positive electrode, an aqueous electrolyte solution, a separator and a negative electrode, in which the aqueous electrolyte solution contains water and a potassium salt dissolved in the water, the aqueous electrolyte solution has no freezing point at -60°C or higher, and at least one element constituting the separator is the same in type as at least one element constituting an anion of the potassium salt.
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公开(公告)号：EP4333131A1
公开(公告)日：2024-03-06
申请号：EP23193981.0
申请日：2023-08-29
发明人： SUYAMA, Hiroshi
摘要： Disclosed is a technology capable of inhibiting elution of Al from a current collector containing Al into an aqueous electrolyte solution when the current collector is used in an aqueous potassium ion battery. The aqueous potassium ion battery of the present disclosure includes a positive electrode, an aqueous electrolyte solution and a negative electrode. One or both of the positive electrode and the negative electrode has/have a current collector containing Al. The current collector is in contact with the aqueous electrolyte solution. The aqueous electrolyte solution contains water and potassium pyrophosphate dissolved in the water. The aqueous electrolyte solution has no freezing point at -60°C or higher.
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6.发明公开
公开(公告)号：EP4141982A1
公开(公告)日：2023-03-01
申请号：EP22190517.7
申请日：2022-08-16
发明人： KON, Makio , IBA, Hideki , KOTANI, Yukinari , SAWADA, Naotaka , MATSUNAGA, Tomoya , NISHIYAMA, Hiroshi , SUYAMA, Hiroshi , KODAMA, Masashi
摘要： A main object of the present disclosure is to provide an anode active material with excellent capacity properties. The present disclosure achieves the object by providing an anode active material to be used in an alkaline storage battery, the anode active material including: a base material containing Ti and Cr, and including a BCC structure as a metastable phase; and a coating layer that coats the base material, and contains a catalyst metal and a metal with oxygen affinity that is more than oxygen affinity of Ti; wherein an oxide film is present in an interface between the coating layer and the base material; and when a first thickness T A (nm) and a second thickness T B (nm) of the oxide film are determined by Auger electron spectroscopy, a rate of the T A with respect to the T B , which is T A /T B is, for example, 1.50 or more.
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公开(公告)号：EP4435123A1
公开(公告)日：2024-09-25
申请号：EP24160752.2
申请日：2024-03-01
发明人： KON, Makio , SAWADA, Naotaka , KAIYA, Hiroyuki , OUCHI, Masanobu , MATSUNAGA, Tomoya , SUYAMA, Hiroshi , SATO, Shigeki
CPC分类号： H01M4/383 , H01M4/242 , H01M10/345 , C22C19/007
摘要： A nickel-metal hydride battery of the present disclosure comprises:
a positive electrode active material layer, a negative electrode active material layer, and an aqueous electrolyte, wherein
a negative electrode active material contained in the negative electrode active material layer is a hydrogen storage alloy having an AB2 main phase,
the A site includes Ti, Zr, or a combination thereof, and
the B site includes Mn, Cr, Ni, Fe, or a combination thereof.-
公开(公告)号：EP4016672A1
公开(公告)日：2022-06-22
申请号：EP21214817.5
申请日：2021-12-15
发明人： SUYAMA, Hiroshi
IPC分类号： H01M4/24 , H01M10/24 , H01M50/417 , H01M50/423 , H01M50/434 , H01M50/451
摘要： The present disclosure provides a separator for a zinc secondary battery that can inhibit short circuiting in a zinc secondary battery. The separator for a zinc secondary battery of the disclosure has a porous substrate layer and a titanium oxide-containing porous layer laminated onto the porous substrate layer, wherein the titanium oxide-containing porous layer comprises a titanium oxide represented by Ti x O y , where 0 2 O, Ti 2 O 3 , Ti 3 O, Ti 3 O 5 , Ti 4 O 5 , Ti 4 O 7 , Ti 5 O 9 , Ti 6 O, Ti 6 O 11 , Ti 7 O 13 , Ti 8 O 15 or Ti 9 O 17.
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公开(公告)号：EP3547436B1
公开(公告)日：2020-08-12
申请号：EP17873874.6
申请日：2017-11-24
发明人： SUYAMA, Hiroshi
IPC分类号： H01M10/36 , H01M10/052 , H01M10/0563 , H01M10/26
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