Patent ID: 8237407
Filing Date: 2012-08-07
Classification: H01M,H02J,Y02E,Y02T

Abstract:
1. A method of mitigating battery characteristic divergence within a battery pack, the method comprising: selecting multiple batteries from among a quantity of available batteries based on their individual loaded output resistance and charge acceptance characteristics, each of the selected batteries having a positive terminal; and connecting the selected batteries in parallel in a battery pack, wherein the positive terminal of each of the selected batteries is connected to a positive power terminal of the battery pack through a respective one of a set of conductive paths, each path having an identical electrical resistance and extending from the positive terminal of the battery pack to the positive terminal of the respective battery; wherein both matching voltage levels at the positive terminal of each battery in the connected batteries and equal charge-transfer rates in each of the connected batteries are maintained while transferring charge to or from the connected batteries.