Patents
US 12725736 B2: Lead zirconate-based antiferroelectric ceramics with improved energy efficiency and method of making same
- Granted
- 2026-09-01
- Filed
- 2024-11-27 application 18962019
- Type
- Utility · 17 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed are embodiments of an antiferroelectric (AFE) ceramic. The AFE ceramic includes a PbZrO3-based composition. The AFE ceramic has a charge-discharge energy efficiency of at least 96%, and the AFE ceramic has a recoverable energy density of at least 2.8 J/cm3 at a peak field of at least 200 kV/cm. Embodiments of a method of identifying potential AFE ceramic compositions having high energy efficiency and recoverable energy density are also disclosed.
Source: PTBLXML, file of 2026-09-01 (ipgb20260901.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Iowa State University Research Foundation, Inc. 581 patents | US company or organization | Ames, IA | PTBLXML, file of 2026-09-01 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Xiaoli Tan | Ames, IA | 3 | PTBLXML, file of 2026-09-01 | |
| Anand Prakash Singh Gaur | Ames, IA | PTBLXML, file of 2026-09-01 | ||
| Jun Cui | Ames, IA | 26 | PTBLXML, file of 2026-09-01 | |
| Binzhi Liu | Columbus, OH | PTBLXML, file of 2026-09-01 | ||
| Duane D. Johnson | Ames, IA | 4 | PTBLXML, file of 2026-09-01 | |
| Renu | Ballwin, MI | PTBLXML, file of 2026-09-01 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01G | Capacitors; capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices of the electrolytic type | H01G4/1236 | PTBLXML, file of 2026-09-01 |
| C01G | Compounds containing metals not covered by subclasses c01d or c01f | C01G25/006 | PTBLXML, file of 2026-09-01 |
| C01P | Indexing scheme relating to structural and physical aspects of solid inorganic compounds | C01P2002/52 | PTBLXML, file of 2026-09-01 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.