NOVELTY - The battery comprises electrochemical energy storage devices and a temperature-control device. The temperature-control device is designed to exchange heat between adjacent energy storage devices. The temperature-control device includes: a cubical main body that is in heat-conductive connection with the energy storage devices; a fluid channel (6) that is guided in certain sections through the main body to guide a temperature-control fluid along a main flow direction and has a first casing surface; and recesses (7) and/or projections that are arranged on the first casing surface.    USE - The lithium-ion battery is useful for supplying power to a vehicle.    ADVANTAGE - The rechargeable battery has long lifespan, increased charge capacity and reduced environmental hazards.    DETAILED DESCRIPTION - The battery comprises electrochemical energy storage devices and a temperature-control device. The temperature-control device is designed to exchange heat between adjacent energy storage devices. The temperature-control device includes: a cubical main body that is in heat-conductive connection with the energy storage devices; a fluid channel (6) that is guided in certain sections through the main body to guide a temperature-control fluid along a main flow direction and has a first casing surface; and recesses (7) and/or projections that are arranged on the first casing surface. The recesses and/or projections are designed to increase turbulence of the temperature-control fluid. The first casing surface is positioned adjacent to the recesses and/or projections. The recesses and/or projections are parallely arranged in a row or as a matrix. The fluid channel has a cylindrical or rectangular cross-sectional area that is transverse to the main flow direction. The main body is thermally conductively connected with the energy storage devices. The temperature-control device is placed between the energy storage devices. Some of the recesses and/or projections have a spherical-, a cone- or a pyramid-shape. The temperature-control device has a parallelepiped-shaped main body. The fluid channels are arranged parallel to one another in the main body. The main body includes rectangular base plates (3) and a fluid channel located between the base plates. The base plates have a raised edge for connection to other base plates. The fluid channel has a supply section and a heat exchange section (10). The heat exchange section has the recesses and/or projections. The supply section is designed to increase flow rate of temperature control fluid in the flow direction and to increase the heat exchange with the energy storage device, and has a rectangular entrance port for the fluid and an exit port facing the heat exchange section. An area of the entrance port is larger than an area of the exit port. The battery further comprises a channel connecting unit (4) that is connected with an independent fluid supply line and a temperature sensor for sensing a temperature of the fluid supply line. The channel connecting unit has a cylindrical entrance face and a rectangular exit face. The temperature sensor detects the temperature of the main body and a display value, which is proportional to the detected temperature. An INDEPENDENT CLAIM is included for a process for manufacturing a temperature-control device.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a temperature-control device.    Base plates (3)    Channel connecting unit (4)    Fluid channel (6)    Recesses (7)    Heat exchange section. (10)