H01M 4/24
Electrodes for alkaline accumulators
H01M4/24 (Electrodes for alkaline accumulators) appears on 1,456 US grants and 1,391 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,456
- Published applications
- 1,391
- Assignees
- 531
- Inventors
- 2,771
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 20 | 0 |
| 1978 | 12 | 0 |
| 1979 | 12 | 0 |
| 1980 | 8 | 0 |
| 1981 | 15 | 0 |
| 1982 | 12 | 0 |
| 1983 | 14 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 11 | 0 |
| 1987 | 18 | 0 |
| 1988 | 8 | 0 |
| 1989 | 17 | 0 |
| 1990 | 16 | 0 |
| 1991 | 21 | 0 |
| 1992 | 14 | 0 |
| 1993 | 14 | 0 |
| 1994 | 18 | 0 |
| 1995 | 28 | 0 |
| 1996 | 35 | 0 |
| 1997 | 40 | 0 |
| 1998 | 38 | 0 |
| 1999 | 33 | 0 |
| 2000 | 35 | 0 |
| 2001 | 51 | 22 |
| 2002 | 50 | 67 |
| 2003 | 64 | 78 |
| 2004 | 53 | 66 |
| 2005 | 32 | 60 |
| 2006 | 22 | 42 |
| 2007 | 37 | 60 |
| 2008 | 25 | 49 |
| 2009 | 29 | 67 |
| 2010 | 38 | 37 |
| 2011 | 32 | 41 |
| 2012 | 41 | 40 |
| 2013 | 28 | 37 |
| 2014 | 26 | 53 |
| 2015 | 28 | 47 |
| 2016 | 36 | 46 |
| 2017 | 30 | 58 |
| 2018 | 31 | 56 |
| 2019 | 49 | 49 |
| 2020 | 60 | 75 |
| 2021 | 40 | 73 |
| 2022 | 44 | 53 |
| 2023 | 35 | 70 |
| 2024 | 36 | 54 |
| 2025 | 37 | 56 |
| 2026 | 25 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Alkaline battery assembled in a discharged state and a method of producing battery electrode materials6 Oct 2026US 12,755,961 B2Zelos Energy Ltd.
- Phosphate based surfactants for alkaline battery anode25 Aug 2026US 12,719,049 B2Duracell U.S. Operations, Inc.
- Battery including beta-delithiated layered nickel oxide electrochemically active cathode material25 Aug 2026US 12,719,054 B2Duracell U.S. Operations, Inc.
- Electrode assemblies incorporating ion exchange materials7 Jul 2026US 12,676,311 B2Zelos Energy Ltd.
- Alkaline electrodes with electrolyte reservoirs7 Jul 2026US 12,676,393 B2Energizer Brands, LLC
- Alkaline secondary battery, nickel hydrogen secondary battery, and production methods therefor1 Oct 2026US 2026/0302174 A1Fdk Corporation
- Electrode Assemblies Incorporating Ion Exchange Materials24 Sep 2026US 2026/0290829 A1Zelos Energy Ltd.
- Positive electrode active material and sodium-ion secondary battery17 Sep 2026US 2026/0279767 A1Toyota Jidosha Kabushiki Kaisha
- Superfast recharging zinc-based energy storage devices3 Sep 2026US 2026/0260880 A1Nanotech Energy, Inc.
- Prismatic Battery Cell Housing with Low CO2 Footprint27 Aug 2026US 2026/0254003 A9Speira GmbH
Most cited
By later US patents
- Rechargeable batteries1,485US 6,596,432 B2Canon Kabushiki Kaisha · 2003
- Secondary battery243US 5,824,434 ACanon Kabushiki Kaisha · 1998
- Materials and products using nanostructured non-stoichiometric substances226US 6,344,271 B12002
- Nanotechnology for biomedical products224US 6,572,672 B2NanoProducts Corporation · 2003
- Electrode structural body, rechargeable battery provided with said electrode structural body, and rechargeable battery206US 6,432,585 B1Canon Kabushiki Kaisha · 2002