Samsung and Hyundai Motor Group are expanding their battery partnership from supply deals to joint development, newly disclosed patents show, amid a recent push by the two conglomerates to step up cooperation across future industries. According to the Korea Intellectual Property Rights Information Service on Wednesday, a patent jointly filed by Hyundai Motor, Kia and Samsung SDI, titled “Battery Pack and Vehicle Including the Same,” was made public on Oct. 22. The patent describes a battery pack