Patents
US 11688843 B2: Calendered electrode and method of making same
- Granted
- 2023-06-27
- Filed
- 2020-08-31 application 17007102
- Type
- Utility · 11 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of making a calendered electrode for a battery cell comprises introducing a coated electrode having a first surface extending thereover. The coated electrode has a predetermined density of active materials for ion transport. The method further comprises selectively modifying the coated electrode by patterning the first surface to define a patterned electrode having a first portion and a second portion. After the step of selectively modifying, the method further comprises compressing the patterned electrode by calendering the first surface to provide the first portion having a first density of active materials and the second portion having a second density of active materials. The second density is greater than the first density to define the calendered electrode having a spatial variation of active material density.
Source: PVGPATDIS, file of 2026-04-10 (ipg230627.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| GM GLOBAL TECHNOLOGY OPERATIONS LLC 19,536 patents | US company or organization | Detroit, MI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Erik Damon Huemiller | Waterford, MI | 9 | PVGPATDIS, file of 2026-04-10 | |
| Nicholas P. Irish | Keego Harbor, MI | 7 | PVGPATDIS, file of 2026-04-10 | |
| Ryan C. Sekol | Grosse Pointe Woods, MI | 22 | PVGPATDIS, file of 2026-04-10 | |
| Dmitriy Bruder | Auburn Hills, MI | 21 | PVGPATDIS, file of 2026-04-10 | |
| Shaomao Xu | Sterling Heights, MI | 16 | PVGPATDIS, file of 2026-04-10 | |
| Jin Liu | Troy, MI | 7 | 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 | H01M4/0435 | 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 |
| Y02P | Climate change mitigation technologies in the production or processing of goods | Y02P70/50 | 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 |
|---|---|---|---|---|---|
| 2021-03-03 | Assignment Assignment of assignor's interest | BRUDER, DMITRIY signed 2020-08-27 HUEMILLER, ERIK D. signed 2020-08-27 LIU, JIN signed 2020-08-27 XU, SHAOMAO signed 2020-08-27 IRISH, NICHOLAS P. signed 2020-08-28 SEKOL, RYAN C. signed 2020-08-28 | GM GLOBAL TECHNOLOGY OPERATIONS LLC DETROIT, MI | 55477/1 | 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.