# US 7,745,044 B2 · Battery module

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- Number: US 7,745,044 B2
- Document ID: US7745044B2
- Status: Granted
- Kind: B2
- Application number: 11/669,543
- Filed: 2007-01-31
- Published: 2008-07-31
- Granted: 2010-06-29
- Earliest claimed: 2007-01-31
- Assignees: Cheng Uei Precision Industry Co., Ltd.
- Inventors: Hsien-Hung Chen; Nan-Sheng Chang; Chuan-Jung Wang
- Web page: https://patentgrep.com/patent/US7745044B2

## CPC

- H01M 10/613: Cooling or keeping cold
- H01M 10/659: by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
- H01M 50/213: adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence)
- H01M 50/581: in response to temperature
- H01M 2200/10: Temperature sensitive devices
- Y02E 60/10: Energy storage using batteries
- Y10T 156/10: Methods of surface bonding and/or assembly therefor
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A battery module includes a battery case, at least a battery, and at least a thermal pad. The battery case includes a top cover and a bottom cover. The battery is received in the bottom cover of the battery case. The thermal pad is placed in a chamber of the batteries and pressed by the top cover of the battery case after the top cover and the bottom cover covering together. Therefore, the thermal energy created by the battery module can be easily transmitted to the outside of the battery module case along the thermal pad.

## Claims

### Claim 1

A battery module comprising:
a battery case including a top cover and a bottom cover;
two batteries received in the bottom cover of the battery case side by side; and
a thermal pad engaged in a chamber between the two batteries, the thermal pad being supported on the two batteries and resting against a bottom of the top cover after the top cover and the bottom cover covering together for transmitting the thermal energy created by the two batteries outside the battery case;
wherein the chamber is substantially V-shaped, the thermal pad has a substantially inverted triangle section to conform to the chamber among the two batteries and the top cover.