Battery module having electrically resistive heating element including electrically resistive heating wire

US11757150B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Benjamin Kopp · Kornwestheim, DE
• Christian Loew · Stuttgart, DE
• Roman Marx · Monsheim, DE
• Markus Schmitt · Neubiberg, DE
• Matthias Oechsle · Hirschlanden, DE

Key dates

• Filing date: Aug 12, 2021
• Grant date: Sep 12, 2023
• Expiry date: Aug 20, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A battery module having a multiplicity of battery cells in thermally conductive contact with an electrical resistive heating element that comprises an electrical resistive heating wire, wherein a first area of the heating element comprises an electrical resistive heating wire with a first cross section, which is in thermally conductive contact with a first outer surface region of battery cells, and wherein a second area of the heating element, which has a resistive heating wire with a second cross section different from the first cross section, is in thermally conductive contact with a second outer surface region of battery cells, and/or wherein the resistive heating element has a first area with a first laying density of electrical resistive heating wire that is in thermally conductive contact with first outer surface regions of battery cells and comprises a second area that has a second laying density, different from the first laying density, of the electrical resistive heating wire and is in thermally conductive contact with second outer surface regions of battery cells.