Patents
US 12469845 B2: Fast charging pre-lithiated silicon anode
- Granted
- 2025-11-11
- Filed
- 2024-01-24 application 18421255
- Type
- Utility · 6 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A battery having a cathode and an anode is provided with a three-dimensional porous framework. The anode includes an anode active material lithiated with a lithium source. The lithium particles from the lithium source are alloyed or intercalated with the anode active material during diffusion to form the three-dimensional porous framework. The porous framework provides reduced electrode deterioration due to volume expansion.
Source: PVGPATDIS, file of 2026-04-10 (ipg251111.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Livent USA Corp. 8 patents | US company or organization | Philadelphia, PA | Livent Usa Corp. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Marina Yakovleva | Gastonia, NC | 17 | PVGPATDIS, file of 2026-04-10 | |
| Kenneth Brian Fitch | Cherryville, NC | 14 | PVGPATDIS, file of 2026-04-10 | |
| Jian Xia | Belmont, NC | 8 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01M | Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy | H01M4/366 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E60/10 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-07-30 | Release of security interest Release of security interest | RIO TINTO FINANCE PLC signed 2025-07-30 | LIVENT USA CORP. PHILADELPHIA, PA ARCADIUM LITHIUM INTERMEDIATE IRL LIMITED DUBLIN 4 | 71886/172 | PASDL, file of 2026-10-15 |
| 2025-01-30 | Security interest Security interest Security interest | LIVENT USA CORP. signed 2025-01-30 ARCADIUM LITHIUM INTERMEDIATE IRL LIMITED signed 2025-01-30 | RIO TINTO FINANCE PLC LONDON | 70061/312 | PASDL, file of 2026-10-15 |
| 2024-01-25 | Assignment Assignment of assignor's interest | XIA, JIAN signed 2021-03-10 YAKOVLEVA, MARINA signed 2021-03-10 FITCH, KENNETH BRIAN signed 2021-05-25 | LIVENT USA CORP. PHILADELPHIA, PA | 66243/874 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.