NOVELTY - An apparatus (108) comprises a battery housing having a housing heat capacitance; a first battery cell having a first thermal capacitance; a second battery cell having a second thermal capacitance; a heat conductor (204) disposed adjacent each of the cells, with the heat conductor having a heat conductor heat capacitance; and a thermal interface material (214) disposed between the heat conductor the first cell and between the heat conductor and the second cell and not between the first cell and the second cell.    USE - As a battery useful for electric vehicle (claimed).    ADVANTAGE - The battery deters the cell in thermal runaway (TR) from starting a cascading chain reaction of cells in TR; prevents a chain reaction; and avoids TR chain reactions in application.    DETAILED DESCRIPTION - An apparatus (108) comprises a battery housing having a housing heat capacitance; a first battery cell having a first thermal capacitance, where the first cell fixedly disposed in the battery housing; a second battery cell having a second thermal capacitance, where the second cell fixedly disposed in the housing a minimum air gap away from the first cell, the minimum air gap having an air gap thermal resistance; a heat conductor (204) disposed adjacent each of the cells, with the heat conductor having a heat conductor heat capacitance; and a thermal interface material (214) disposed between the heat conductor the first cell and between the heat conductor and the second cell and not between the first cell and the second cell, where the thermal interface material conformed to the heat conductor and each of the first and second cells. The heat conductor includes a fluid cooling tube, and scallops. The thermal interface material comprises foam that is pliable and resilient. The thermal interface material includes an adhesive that includes an epoxy; and ceramic-filled silicone rubber. An INDEPENDENT CLAIM is included for an electric vehicle comprising an electric motor coupled to propel the electric vehicle; a battery housing disposed in the electric vehicle; a first cell of the battery cells; a second cell of the battery cells; and a fluid cooling tube disposed adjacent each of the cells, with the cooling tube having a cooling tube heat capacitance, the cooling tube is part of a temperature control system to cool the cooling tube.    DESCRIPTION OF DRAWING(S) - The figure shows top view of battery cell.    Apparatus (108)    Heat conductor (204)    Thermal interface material (214)    Electrical insulator (218)    Cell (224)