Patent ID: 9527401
Filing Date: 2016-12-27
CPC Classification: B60L,H01M,Y02E,Y02T

Claim Text:
1. A 12 volt automotive battery system, comprising: a first battery configured to be coupled to an electrical system and to be charged with a relatively constant first voltage, wherein an alternator outputs the first voltage, and the first battery comprises a first battery chemistry; a second battery comprising a second battery chemistry that has a higher coulombic efficiency than the first battery chemistry; a DC/DC converter coupled in series with the second battery, wherein the DC/DC converter and the second battery are coupled in parallel with the first battery, and the DC/DC converter is configured to: a housing that houses the first battery, the second battery, and the DC/DC converter, wherein the housing comprises a positive terminal and a ground terminal coupled to the first battery and selectively coupled to the second battery via the DC/DC converter, wherein the positive terminal and the ground terminal are configured to couple to the electrical system.