Abstract: The present disclosure relates to a battery assembly including a case accommodating a plurality of battery cells, a heat dissipation part located between the plurality of battery cells and the accommodating bottom surface, and a pad part located between a plurality of battery groups in which adjacent battery cells among the plurality of battery cells are grouped by a preset number of cells, wherein an absolute value of a difference between a surface hardness of the heat dissipation part and a surface hardness of the pad part is less than or equal to a preset allowable value.

Abstract: A method for distributing limited use payment credentials includes: receiving, by a receiving device of a computing device, payment credentials associated with a transaction account, wherein the payment credentials are subject to one or more transaction controls governing usage in a payment transaction; storing, in a memory of the computing device, the received payment credentials; preventing, by a security module of the computing device, audio or visual access to the stored payment credentials by a user of the computing device; and electronically transmitting, by the computing device, the payment credentials to a point of sale system.