Containment, storage and shipping of lithium batteries
US10490785B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2018 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Jul 20, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Rechargeable lithium batteries can store a high amount of energy per unit of volume. The batteries, common in electric vehicles, can become heated and exhibit thermal runaway, affecting adjacent batteries and causing fires. Containment of lithium batteries to prevent the spread of fire is effected by a battery box or container coated with a heat-activated intumescent material. This can be in the form of a coating on one or more walls of the battery containment apparatus on a vehicle or in a shipping container; for storage and shipment of batteries the containment can be via an inner box enveloped by an outer box, with the heat-activated intumescent material filling the space between the boxes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.