US Patent 10396406 Battery module

A battery module includes: a first battery cell; a second battery cell, each of the first and second battery cells having first sides and second sides, the first sides being larger than the second sides; a holder between the first battery cell and the second battery cell; and a temperature measuring unit coupled to the holder, the temperature measuring unit contacting one of the first sides of at least one of the first and second battery cells, and being configured to measure a temperature of the at least one of the first and second battery cells.