H01M 4/8615
Bifunctional electrodes for rechargeable cells
Official title: {Bifunctional electrodes for rechargeable cells}
H01M4/8615 (Bifunctional electrodes for rechargeable cells) appears on 95 US grants and 141 published applications in this corpus.
Search patents in H01M- Granted patents
- 95
- Published applications
- 141
- Assignees
- 101
- Inventors
- 359
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 2 | 6 |
| 2004 | 4 | 8 |
| 2005 | 3 | 0 |
| 2006 | 3 | 3 |
| 2007 | 3 | 3 |
| 2008 | 2 | 2 |
| 2009 | 1 | 3 |
| 2010 | 0 | 3 |
| 2011 | 1 | 7 |
| 2012 | 3 | 5 |
| 2013 | 1 | 8 |
| 2014 | 4 | 7 |
| 2015 | 4 | 16 |
| 2016 | 6 | 8 |
| 2017 | 10 | 7 |
| 2018 | 0 | 12 |
| 2019 | 7 | 6 |
| 2020 | 7 | 7 |
| 2021 | 6 | 5 |
| 2022 | 5 | 6 |
| 2023 | 3 | 3 |
| 2024 | 4 | 3 |
| 2025 | 1 | 3 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lithium-air battery4 Aug 2026US 12,700,595 B2Lyten, Inc.
- Method for operating a metal-hydrogen battery24 Mar 2026US 12,586,826 B2EnerVenue Holdings, Ltd.
- pH-universal aqueous rechargeable hydrogen batteries7 Jan 2025US 12,191,502 B2Eenotech, Inc.
- Folding type lithium air battery and method for manufacturing same15 Oct 2024US 12,119,473 B2Hyundai Motor Company
- Gas diffusion layer for metal-air battery, method of manufacturing the same, and metal-air battery including the same10 Sep 2024US 12,087,950 B2Samsung Electronics Co., Ltd.
- Ultrafine Vacancy-Rich Co9S8-x/MnS-Decorated S, N-Doped Hollow Carbon Nanotube Derived via Cooperative In-Situ Sulfidation and Interface Tuning as a Bifunctional Oxygen Electrocatalyst for High-Performance Zinc-Air Batteries27 Aug 2026US 2026/0253910 A1Korea Advanced Institute of Science and Technology
- Metal-carbon composites and uses thereof30 Jul 2026US 2026/0218342 A1B. G. Negev Technologies and Applications Ltd., At Ben-Gurion University
- Atomically dispersed niobium-based electrocatalysts for metal-air batteries23 Apr 2026US 2026/0112655 A1Arizona Board of Regents on behalf of Arizona State University
- Non-Woven Pitch-Based Carbon Fiber Electrodes for Low-Cost Redox Flow Battery19 Mar 2026US 2026/0081183 A1Clemson University
- Electrolyzer for spontaneously generating hydrogen and a method for implementing same5 Mar 2026US 2026/0066325 A1BST Systems, Inc.
Most cited
By later US patents
- Bifunctional air electrode407US 4,524,114 AAllied Corporation · 1985
- Metal/air cells and improved air electrodes for use therein160US 3,977,901 AWestinghouse Electric Corp. · 1976
- Recharge catalyst with thin film carbon coating, metal-air electrode including said catalyst and methods for making said catalyst and electrode72US 6,069,107 AAER Energy Resources, Inc. · 2000
- Mesoporous carbon materials comprising bifunctional catalysts61US 8,916,296 B2EnerG2 Technologies, Inc. · 2014
- Multi-ply laminar pasted air electrodes57US 4,152,489 AWestinghouse Electric Corp. · 1979