H01M 4/32
Nickel oxide or hydroxide electrodes
H01M4/32 (Nickel oxide or hydroxide electrodes) appears on 418 US grants and 398 published applications in this corpus.
Search patents in H01M- Granted patents
- 418
- Published applications
- 398
- Assignees
- 184
- Inventors
- 904
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 14 | 0 |
| 2001 | 19 | 12 |
| 2002 | 18 | 20 |
| 2003 | 24 | 26 |
| 2004 | 18 | 28 |
| 2005 | 12 | 18 |
| 2006 | 7 | 12 |
| 2007 | 9 | 18 |
| 2008 | 10 | 17 |
| 2009 | 7 | 14 |
| 2010 | 10 | 13 |
| 2011 | 14 | 9 |
| 2012 | 6 | 9 |
| 2013 | 5 | 17 |
| 2014 | 7 | 17 |
| 2015 | 9 | 14 |
| 2016 | 11 | 17 |
| 2017 | 10 | 16 |
| 2018 | 9 | 15 |
| 2019 | 17 | 21 |
| 2020 | 22 | 16 |
| 2021 | 10 | 16 |
| 2022 | 13 | 11 |
| 2023 | 10 | 13 |
| 2024 | 8 | 16 |
| 2025 | 5 | 8 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Film, film forming method, and surface-coated material10 Feb 2026US 12,546,022 B2Toyota Jidosha Kabushiki Kaisha
- Positive electrode materials of low-cost alkaline secondary batteries and preparation methods and applications thereof20 Jan 2026US 12,528,712 B2Chaowei Power Group Co., Ltd.
- Polymer coating process for electrode assemblies incorporating ion exchange materials20 Jan 2026US 12,531,244 B2Zelos Energy Ltd.
- Alkaline secondary battery, nickel hydrogen secondary battery, and production methods therefor1 Oct 2026US 2026/0302174 A1Fdk Corporation
- Zinc battery13 Aug 2026US 2026/0237636 A1Fdk Corporation
- Polymer Coating Process For Electrode Assemblies Incorporating Ion Exchange Materials19 Mar 2026US 2026/0081162 A1Zelos Energy Ltd.
- Electrode for power storage device, and method for producing composite material for active material layer22 Jan 2026US 2026/0024773 A1Kabushiki Kaisha Toyota Jidoshokki
- Alkaline electrochemical cells comprising increased zinc oxide levels and high valent nickel cathodes15 Jan 2026US 2026/0018591 A1Energizer Brands, LLC
Most cited
By later US patents
- Composite solid electrolyte for protection of active metal anodes128US 8,182,943 B2PolyPlus Battery Company · 2012
- Substantially impervious lithium super ion conducting membranes95US 8,334,075 B2PolyPlus Battery Company · 2012
- Powdery material, electrode member, and method for manufacturing same for a secondary cell73US 6,040,087 ACanon Kabushiki Kaisha · 2000
- Battery electrode58US 4,251,603 AMatsushita Electric Industrial Co., Ltd. · 1981
- Substantially impervious lithium super ion conducting membranes57US 8,652,686 B2PolyPlus Battery Company · 2014