Current collector manufacture by arc spray deposition
US6117593A · kind A · utility
45Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Arc spray deposition of molten metal droplets on plastic electrodes creates a tight bonded adhesion and increases the surface area contact between collector and electrode. This is especially efficacious for lithium secondary batteries which are known to flex during charge and discharge cycles leading to battery failure. The strength of the bonding interaction, and a resistance to stress cracking are observed when a perforated or expanded metal strip is utilized to reinforce the arc spray deposited metal collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.