WO2014082701A1

WO2014082701A1 - Battery with temperature-control device

Info

Publication number: WO2014082701A1
Application number: PCT/EP2013/003255
Authority: WO
Inventors: Torsten Klemm; Christian Zahn
Original assignee: Li-Tec Battery Gmbh
Priority date: 2012-11-28
Filing date: 2013-10-29
Publication date: 2014-06-05

Abstract

A battery with a plurality of electrochemical energy storage devices and at least one temperature-control device, wherein the at least one temperature-control device is designed to exchange heat between (with?) at least one or two energy storage devices, particularly adjacent energy storage devices, wherein the at least one temperature-control device has: - a main body (1), particularly a substantially cuboidal main body, which is designed for heat-conductive connection to at least one of said energy storage devices; - at least one fluid channel (6) which is guided at least in certain sections through the main body (1) and is designed to guide a flowing temperature-control fluid, particularly along a main flow direction, and has at least one first casing surface; - a plurality of recesses (7) and/or projections which are arranged on the first casing surface, which are particularly designed to increase the turbulence of the temperature-control fluid, particularly at least adjacent to the recesses (7) and/or projections.

Description

Battery with a tempering device

Description

Hereby, the entire content of the priority applications DE 10 2012 023 316 and DE 10 2013 004 722 by reference is part of the present application. The present invention relates to a battery with a tempering device. The invention is related to lithium-ion batteries for

Power supply of vehicle drives described. It should be noted, however, that the invention may also be applied regardless of the type of battery and regardless of the type of consumer supplied.

Rechargeable batteries with multiple, interconnected, electrochemical energy storage devices, also referred to as cells below, are used today in large numbers. A widespread problem with these batteries is the lack of cycle stability, i. that with increasing operating time, the energy that can be removed from the battery decreases. This is due to the fact that areas of the battery that are no longer available for the conversion of energy due to irreversible chemical reactions increase. One speaks in this context of passivated areas of the battery. It is known that higher temperatures passivate the increase during operation of a battery

Areas, especially in the cells, favor. It can happen that Some of the interconnected cells age more strongly than the others, causing the battery's charge capacity to decrease too quickly.

The invention is therefore based on the object to improve the service life of a battery with at least two electrochemical energy storage devices.

The object is achieved by a battery according to claim 1. The object is further achieved by a method according to claim 1 1. Preferred developments of the invention are the subject of the dependent claims.

The battery according to the invention has a plurality of electrochemical energy storage devices and at least one tempering device. The at least one tempering device is designed for heat exchange with at least one, two or more, in particular adjacent, of these electrochemical energy storage devices. The at least one tempering device has a, in particular substantially cuboid, base body, which is designed for heat-conducting connection with at least one of these energy storage devices. The tempering device has at least one fluid channel, which

at least partially guided by the body. The fluid channel is designed to guide a flowing tempering fluid, in particular along a main flow direction τζ, and has at least one first lateral surface. The tempering device has a plurality of recesses and / or projections, which are arranged on the first lateral surface. In particular, the depressions and / or projections are designed to increase the turbulence of the tempering fluid, in particular at least adjacent to the depressions and / or projections.

It has been observed that with higher turbulence the heat exchange between the tempering fluid and the first lateral surface is improved. As a result, a greater heat output can be transmitted between the tempering fluid and the first lateral surface.

In particular, the tempering device is designed for the removal of

Heat energy or heat output from an adjacent

Energy storage device, with which the tempering is thermally conductively connected, in particular when a temperature of the main body or the energy storage device exceeds a minimum temperature.

With the tempering heat energy or heat output from one of these energy storage devices, which is thermally conductively connected to the tempering, be dissipated. This will become one

Temperature increase of the energy storage device encountered, in particular, the temperature of the energy storage device can be reduced. With lower temperatures during operation of the energy storage device, irreversible chemical reactions that can lead to passivation of regions of the electrochemical energy storage device can be reduced. Thus, the ability of the energy storage device or the battery to provide electrical energy over a longer period is obtained. This solves the underlying task.

Parts of one of these electrochemical energy storage devices,

In particular, the electrolyte show above a limit temperature undesirable or hazardous behavior, especially evaporation or ignition, whereupon the environment through the electrochemical

Energy storage device can be compromised. But if in the inventive design of the battery from the

Energy storage devices can be removed by means of the tempering heat energy, the temperature of the energy storage device can be limited or decreased. As a result, the risk to the environment is reduced by the electrochemical energy storage device. Under a battery according to the invention is a device to understand, which is used in particular the electrical supply of a consumer. The battery is designed, at least temporarily, electrical energy

provide. The battery is configured to at least temporarily absorb and store electrical energy. The battery has a plurality, but at least two, electrochemical energy storage devices. For electrical connection to a consumer to be supplied, the battery has two battery terminals of different electrical polarity. At least temporarily, the electrical voltage of the, in particular interconnected, energy storage devices is applied to these battery terminals.

Under an electrochemical energy storage device in the sense of

Invention is a device to understand, which in particular the

Provision of electrical energy is used. This is the electrochemical

Energy storage device configured to convert stored chemical energy into electrical energy, and then provide this electrical energy to a consumer. The energy storage device is configured to convert supplied electrical energy into chemical energy and to store it as chemical energy. The energy storage device has two current conductors of different polarity, at which an electrical voltage of the energy storage device can be tapped off. The current conductors are used for electrical connection, in particular interconnection, with at least one further, in particular adjacent, this

Energy storage devices and / or at least indirectly the electrical connection with the consumer. Preferably, the

Energy storage device formed substantially cuboid.

In the context of the invention, a tempering device is to be understood as meaning a device which, in particular for exchanging heat with at least one, two or more, in particular adjacent, thereof

Energy storage devices is designed, which in particular for the line a heat flow between at least one, two or more of these energy storage devices and the tempering fluid is configured.

In the context of the invention, a basic body is to be understood as a device which is configured in particular for the heat-conducting connection with one, two or more of these energy storage devices. The main body is designed in particular for conducting a heat flow between at least one of these energy storage devices and the tempering fluid. The base body is configured to receive the fluid channel at least in sections, preferably substantially completely. The main body has at least one or more first lateral surfaces, which are each designed to limit the fluid channel. The at least one first lateral surface faces the fluid channel. The at least one first lateral surface is configured to guide the tempering fluid. Preferably, the base body has one or more second lateral surfaces, which each for heat-conducting contact or connection with one of these

Energy storage devices are designed.

A fluid channel in the sense of the invention is to be understood as meaning a device which serves in particular for guiding a temperature-controlling fluid flowing at least temporarily. For this purpose, the fluid channel has a volume which is permeable to the tempering fluid, the volume of which is one of these first

Lateral surfaces is limited. The flowing tempering fluid can flow through said volume and along the first lateral surface, the first lateral surface holding the tempering fluid in the fluid channel. At least

In sections, this main flow direction or the direction of the time-averaged flow velocity of the tempering fluid is

Arranged substantially perpendicular to the first lateral surface. The fluid channel extends in particular along a channel longitudinal axis. Preferably, the main flow direction or the direction of the time-averaged flow velocity of the tempering fluid substantially corresponds to Channel longitudinal axis. The fluid channel is at least partially from

Basic body added.

A tempering fluid in the sense of the invention is to be understood as meaning a fluid which, in particular, exchanges, in particular the supply or removal, of heat energy or heat output with one of these

Energy storage devices is used. For this purpose, the tempering fluid has a different temperature from the energy storage device. In particular for cooling the energy storage device, the tempering fluid has a lower temperature than the energy storage device when entering the fluid channel. Preferably, the tempering fluid for cooling the

Energy storage device when entering the fluid channel a smaller

Temperature as the main body. In particular, for heating the

Energy storage device has the tempering fluid entering the

Fluid channel to a higher temperature than the energy storage device. The tempering fluid is provided to be conveyed at least temporarily by an independent fluid conveying device through the fluid channel. At least in sections, the largest velocity component of the tempering fluid is arranged substantially perpendicular to the channel longitudinal axis. Preferably, water, a thermal oil, a synthetic heat transfer oil, gases such as in particular helium or air can be used as tempering.

Preferably, a refrigerant can be used, wherein particularly preferably the temperature control device can act in accordance with an evaporator.

Under a depression in the context of the invention is a device to understand, which serves in particular to locally increase the turbulence of the tempering. For this purpose, the recess is arranged on the first lateral surface, in particular introduced into the first lateral surface. In particular, the depression extends from the base body into the fluid channel. In particular, the depression extends essentially perpendicular to the first lateral surface,

Channel longitudinal axis or main flow direction in the body, in particular along a depression axis. Preferably, the

Expansion of such a depression along the recess axis low compared to, in particular hydraulic, diameter of the fluid channel. It has been observed that even a small depression, in particular locally, can increase or trigger the turbulence of the tempering fluid in the fluid channel, in particular in that the tempering fluid flows through the recess and the recess with a minimum angle to the channel longitudinal axis or

Main flow direction leaves. This is an improvement of the

Heat exchange between the tempering fluid and the

Energy storage device or an increased transferable heat output associated. Also goes with the small extent or depth of the depression associated with a lower pressure loss in Temperierfluid.

Under a projection within the meaning of the invention is a device to

which serves in particular to locally the turbulence of the

To increase tempering fluids. For this purpose, the projection is arranged on the first lateral surface, in particular introduced into the first lateral surface. In particular, the projection extends from the main body into the fluid channel.

In particular, the projection extends substantially perpendicular to the first lateral surface, channel longitudinal axis or main flow direction into the tempering fluid, in particular along a projection axis. Preferably, the extent of such a projection along the projection axis is small compared to, in particular hydraulic, diameter of the fluid channel. It has been observed that even a small projection, in particular locally, can increase or trigger the turbulence of the tempering fluid in the fluid channel, in particular in that the tempering fluid flows along the projection and projects the projection at least at an angle to the longitudinal axis of the channel.

Main flow direction happens. This is an improvement of the

Heat exchange between the tempering fluid and the

Energy storage device or an increased transferable heat output associated. Also goes with the small extent or height of the projection associated with a lower pressure drop in the tempering. Hereinafter, preferred developments of the invention will be described.

According to a preferred embodiment, the at least one first

Jacket surface formed by a lateral surface of the body. At the same time, the at least one first lateral surface forms a boundary of the fluid channel which is impermeable to the tempering fluid. This preferred development offers the advantage that the manufacture of the tempering device is simplified. This preferred development has the advantage that an undesired relative movement of the recesses and / or projections with respect to the

Encountered basic body.

According to a preferred development is at least temporarily, in particular at a predetermined minimum temperature difference between the

Temperingfluid and the energy storage device, the

Flow velocity of the tempering fluid so high that the

Tempering fluid along the fluid channel or its first lateral surface flows turbulent. This preferred development has the advantage that the transferable heat output between the tempering fluid and the

Energy storage device is increased.

According to a preferred embodiment, the battery has a battery housing for receiving the energy storage devices and one or more of these tempering. The battery housing may preferably exert a force on the recorded energy storage devices and the temperature control devices such that the heat-conducting connection between at least one or more of these energy storage devices and at least one or more of these temperature control devices is improved. This preferred development offers the advantage that the cohesion of the energy storage devices during operation of the battery is improved. According to a preferred development, the battery has a multiplicity of these energy storage devices and a plurality of these temperature control devices, which are accommodated in particular by the battery housing. This preferred development offers the advantage that the charge capacity of the battery and / or the electrical voltage that can be supplied by the battery can be greater.

According to a preferred embodiment, the battery has a

Control device, which can control and in particular monitor the operation of the energy storage devices, in particular charging and / or discharging operations. Preferably, the control device is configured, at least one measured value or display value of at least one

Receive temperature sensor, particularly preferably to process. Preferably, the battery has a conveying device for the tempering fluid, wherein the conveying device can be controlled by the control device, in particular as a function of the aforementioned measured value or display value. This preferred development offers the advantage that the temperature of one of these energy storage devices can be monitored and controlled during operation of the battery.

According to a preferred embodiment, the base body is formed with aluminum, copper or an alloy with at least one or both of these metals, in particular for the highest possible heat conduction or transferable heat output between the tempering fluid and the

Energy storage device.

According to a preferred refinement, the at least one fluid channel, in particular along a linear channel axis, extends between opposite lateral surfaces of the main body, wherein these

opposite lateral surfaces are different from the second lateral surfaces. If the fluid channel is linear between opposite

The lateral surfaces of the main body extends and in particular the tempering fluid is not repeatedly performed along the first lateral surface, a minimum temperature difference .DELTA.Τ between Temperierfluid and first

Mantle surface to be maintained at the end of the fluid channel. This preferred development has the advantage that the heat exchange between the base body and the tempering fluid is improved.

According to a preferred embodiment, the base body with at least one, preferably two, of these energy storage devices is thermally conductive connectable. Preferably, the at least one tempering device can be arranged between two of these energy storage devices. This preferred development offers the advantage that with the same

Tempering simultaneously two of these energy storage devices can be tempered.

According to a preferred embodiment, the battery has a plurality of first arrangements. This first arrangement has two of these

Energy storage devices and one of these tempering on. The tempering arranged between the two energy storage devices and thermally conductively connected to these energy storage devices. Preferably, two, four or more of these are first

Arrangements adjacent to each other, in particular in the battery case, arranged. Preferably, the energy storage devices are interconnected. This preferred development has the advantage that at the same time two of these with the same temperature control

Energy storage devices can be tempered.

According to a preferred embodiment, the battery has a plurality of second arrangements. The second arrangement has one of these

Energy storage devices and one of these tempering on. The tempering arranged adjacent to the energy storage device and connected to the energy storage device thermally conductive. Preferably, two, four or more of these second arrangements are related to each other especially in the battery case, arranged. Preferably, the

Energy storage devices interconnected. This preferred development offers the advantage that one of these energy storage devices can be tempered simultaneously by two of these tempering devices. According to a preferred development, at least some of these recesses and / or projections each correspond at least substantially to a body of the following group, which includes: a spherical section, a section of an ellipsoid, cone, truncated cone, conical section, pyramid, truncated pyramid, pyramid section, cylinder. Preferably, at least some of these recesses and / or projections each correspond at least substantially to a spherical section, a cone or a pyramid. Preferably, at least some of these projections are at least in

Essentially formed spherical. Thus, a stamp, which is provided with "negatives" of the recesses and / or projections for the production of the depressions and / or projections, is used.This preferred development offers the advantage of lower manufacturing costs.

According to a preferred refinement, some or more of these depressions and / or projections are in each case spherical, in particular corresponding to a spherical segment. Here, some or more of these depressions and / or projections on the surface of the first lateral surface have an extension or a diameter d _v and perpendicular to the first lateral surface a greatest depth or height s _v . Preferably, s _v / d _v <0.5 is more preferably less than 0.4, more preferably less than 0.2, more preferably less than 0.1, even more preferably less than 0.05, more preferably greater than 0.01 , more preferably about 0.2. Particularly preferably, the depressions and / or projections have a diameter of about 5 mm a depth of about 1 mm. This preferred development offers the advantage that the pressure loss which the tempering fluid flows along the

Fluid channels experiences, is reduced.

According to a preferred refinement, a plurality of these depressions and / or projections are arranged in a row, preferably in a plurality of rows, in particular parallel to one another. Preferably, a plurality of these recesses and / or projections are arranged according to a matrix.

Preferably, the diameter of a plurality of these recesses and / or projections depends on the width of the fluid channel. Preferably, the diameter of a plurality of these recesses and / or projections is up to 5% of the width of the fluid channel. Preferably, with a width of the fluid channel of about 140 mm across the width, about 10 of these recesses and / or protrusions are arranged in a row. Preferably, the distance between the recesses and / or projections along the width of the fluid channel is at least twice the diameter of these recesses and / or projections. Preferably, the distance between the recesses and / or projections in the flow direction is at least twice the diameter of these recesses and / or projections. Vorzugswerse corresponds to the distance of the recesses and / or projections along the width of the fluid channel the distance of the recesses and / or projections in

Flow direction.

This preferred development offers the advantage that it is possible to influence the increase in turbulence in the tempering fluid in a targeted manner.

Alternatively, a plurality of these depressions and / or projections are arranged irregularly on the first lateral surface. Thus, loose and geometrical indefinite bodies, in particular granules of sand, can be used to produce the Wells and / or protrusions are used. This preferred development offers the advantage of lower manufacturing costs.

According to a preferred development, at least some of these

Depressions and / or projections geometrically indeterminate. This preferred development offers the advantage that the production of the recesses and / or projections can be simplified with geometrically indefinite bodies, in particular granules preferably made of sand, which are pressed at least partially into the first lateral surface, and in particular subsequently removed again. According to a preferred development, a plurality of these depressions and / or projections cover at least 10% of the first lateral surface, in particular of the heat exchange section described below, more preferably more than 20%, more preferably more than 30%, more preferably more than 40%, more preferably more than 50%, more preferably more than 60%, more preferably less than 90% of the first lateral surface, in particular of the later

described heat exchange section. This preferred development has the advantage that the heat exchange between the tempering fluid and the base body is improved. This preferred development offers the advantage that the pressure loss which the tempering fluid experiences along the fluid channel is limited.

According to a preferred embodiment, the fluid channel, in particular transversely to the main flow direction, a substantially cylindrical

Cross-sectional area on. Preferably, the fluid channel has a substantially hollow cylindrical shape. Preferably, the fluid channel is formed as a single hollow cylinder whose inner circumferential surface forms the first lateral surface of the fluid channel. This preferred development has the advantage that the fluid channel can be adapted to the shape of the base body. This preferred development offers the advantage that the fluid channel to the

Manufacturing process for the tempering can be adjusted. These preferred development offers the advantage that the manufacturing costs for the fluid channel or the tempering are reduced. This preferred development offers the advantage that the fluid channel can be produced by a machining process, in particular by drilling or broaching. This preferred development has the advantage that a plurality of these fluid channels can be arranged side by side in a cuboid base body.

According to a preferred embodiment, the fluid channel, in particular transversely to the main flow direction, a substantially rectangular

Cross-sectional area on. Preferably, the substantially rectangular

Fluid channel bounded by a plurality of these first lateral surfaces. Preferably, the fluid channel has a substantially cuboid shape.

Preferably, the fluid channel is formed as a single cavity of substantially parallelepiped shape. Particularly preferably, one or more corners or edges of the substantially cuboidal fluid channel are rounded, in particular for lower production costs, in particular for lower pressure loss of the tempering fluid along the fluid channel. This preferred development has the advantage that the fluid channel can be adapted to the shape of the base body. This preferred development has the advantage that the fluid channel to the manufacturing process for the

Tempering device can be adjusted. This preferred development has the advantage that the manufacturing costs for the fluid channel or the

Tempering device are reduced. This preferred development offers the advantage that the fluid channel can be produced by a machining process, in particular by milling or broaching.

According to a preferred development, the tempering device is provided with a substantially cuboid basic body for heat-conducting connection with at least one of these, in particular cuboid,

Energy storage devices configured, and a plurality of independent of these cylindrical fluid channels, which in the body substantially parallel are arranged to each other and extend along the base body. This preferred development offers the advantage of lower manufacturing costs. This preferred development offers the advantage that the fluid channel can be produced by a machining process, in particular by drilling or broaching. This preferred development has the advantage that several of these fluid channels next to each other in one

cuboid base body can be arranged.

Energy storage devices configured, and one or more of these cuboidal fluid channels, which extend along the base body. This preferred development offers the advantage of lower manufacturing costs.

According to a preferred embodiment of the main body with two

Base plates formed. The at least one fluid channel is arranged between these two base plates. At least one of these base plates, in particular one of its second lateral surfaces, is for heat-conducting

Connection to at least one of these energy storage devices

designed. At least one of these base plates has several of these

Recesses and / or projections and in particular the first lateral surface. As a result, the first lateral surface of the fluid channel becomes more accessible during production, in particular before connecting the base plates. This preferred development offers greater freedom in the production of the fluid channel, in particular the recesses and / or projections. This preferred development offers the advantage of lower manufacturing costs. This preferred development has the advantage that the base plates

can be inexpensively made of commercially available metal plates or standards. This preferred development has the advantage that the thermal resistance of the base plate, which limits a heat exchange between the energy storage device and the tempering fluid, is reduced. This preferred development offers the advantage that the heat flow between the energy storage device and the tempering fluid is increased.

According to a preferred embodiment, the base plates are formed substantially rectangular. Preferably, these base plates are formed thin-walled, ie with a small wall thickness W _G in the direction of, in particular idealized one-dimensional, heat flow between the

Energy storage device and the tempering fluid. Preferably, the length L _G , substantially in the main flow direction, and the width B _G , substantially perpendicular to the main flow direction and to the wall thickness, of these base plates are dimensioned to be significantly greater than their wall thickness W _G.

Preferably

L _G / W _G > 5 and B _G / W _G > 5

This preferred development has the advantage that the heat exchange between the base body and the tempering fluid is improved. This preferred development offers the advantage that the thermal resistance, which provides the base plate with a heat flow between the tempering fluid and the energy storage device, is reduced. This preferred

Further development has the advantage that the base plates can be inexpensively made of standard metal plates or standards can be made. This preferred development has the advantage that the thermal resistance of the base plate, which heat exchange between the

Energy storage device and the tempering limited, is reduced. This preferred development offers the advantage that the heat flow between the energy storage device and the tempering fluid is increased.

According to a preferred development, the essentially cuboid-shaped fluid channel extends along the base plate with a width B _F B _F / B _G , more preferably greater than 0.5, more preferably greater than 0.6, more preferably greater than 0.7, more preferably greater than 0.8, further preferably greater than 0.9. Thus, the fluid flow from a supply line along in the

Substantially rectangular base plates are spread for the largest possible area for heat exchange with the base plate or the

Energy storage device. This preferred development has the advantage that the area for the heat exchange between the main body and the tempering fluid is increased. This preferred development has the advantage that the heat exchange between the base body and the tempering fluid is improved.

According to a preferred development, one, two, three, four, five, six or more, essentially hollow-cylindrical, fluid channels each with a width B _F extend along the base plate with B _F / B _G) <0.5, more preferably smaller than 0.4, more preferably less than 0.2, more preferably less than 0, 1, more preferably less than 0.05, more preferably less than 0.02, even more preferably less than 0.01, more preferably greater than 0.001. Thus, the fluid flow from a supply line along the base plates can be spread for the largest possible area for heat exchange with the base plate or the energy storage device. This preferred

Further development offers the advantage that the area for the heat exchange between the main body and the tempering fluid is increased. This preferred development has the advantage that the heat exchange between the base body and the tempering fluid is improved. According to a preferred development, the at least one fluid channel having a length L _F extends along the base plate with L _F = L _G. Since the fluid channel is no longer than the main body or the base plate and in particular the tempering fluid is not repeatedly conducted along the first lateral surface, there is a minimum temperature difference ΔΤ between

Temperingfluid and first lateral surface at the end of the fluid channel.

This preferred development has the advantage that the heat exchange between the base body and the tempering fluid is improved.

According to a preferred embodiment, one or both of these

Base plates each formed with a, in particular deep-drawn, thin-walled metal sheet. Preferably, the depressions and / or

Projections by means of a forming process, in particular by means of pressing or deep drawing produced. This preferred development has the advantage that the production of the base plates is simplified. This preferred

Training offers the advantage that the heat flow between the

Energy storage device and the tempering fluid is increased. This preferred development has the advantage that the base plates

can be inexpensively made of commercially available metal sheets. This preferred development has the advantage that the thermal

Resistance of the base plate, which limits a heat exchange between the energy storage device and the tempering fluid is reduced. This preferred development offers the advantage that the heat flow between the energy storage device and the tempering fluid is increased.

Preferably, at least one of these base plates is formed with at least one raised edge for connection to the other of these base plates. Preferably, at least one of these base plates is made of a continuous casting profile with at least one raised edge. The at least one raised edge allows a particularly simple design of the fluid channel. At least one or two of these raised edges allow a particularly simple spacing of the other of these two base plates. This preferred embodiment offers the advantage of lower manufacturing costs. The raised edge allows the control of the tempering within the body, in particular to avoid flowed through at reduced flow rates areas in

Main body or areas of stationary tempering. This preferred embodiment has the advantage that the heat exchange between the tempering fluid and the first lateral surface is improved.

According to a preferred embodiment, the fluid channel has a

Feed section and a heat exchange section. Of the

Heat exchange section has a plurality of these recesses and / or projections. The feed section is configured to increase the flow velocity of the tempering fluid in the direction of the heat exchange section, in particular for improved heat exchange with the heat exchanger

Energy storage device. Preferably, the feed section has a, in particular substantially rectangular, inlet surface for the tempering fluid and an outlet surface. Preferably, the entrance surface is formed larger than the exit surface, wherein the exit surface faces the heat exchange section. Preferably, the feed section has an in

Substantially truncated pyramidal or prismatic shape. This preferred development has the advantage that the heat exchange between the tempering fluid and the main body especially in

Heat exchange section is improved due to the increased flow rate.

According to a preferred embodiment, the length of the feed section L _{z is} greater than the length of the heat exchange section L _w , further preferred

L _z / L _w <0.5 more preferably less than 0.2, more preferably less than 0.1, more preferably less than 0.05, more preferably less than 0.02, even more preferably greater than 0.01. Thus, the heat exchange section or the depressions and / or projections can make up as much of the fluid channel or the first lateral surface as possible. This preferred development has the advantage that the heat exchange between the tempering fluid and the base body is improved.

According to a preferred embodiment, the fluid channel has a

Abführungsabschnitt, which adjoins the heat exchange section, which serves to delay the tempering, in particular in the direction of the later-mentioned channel connection device. Preferably, the discharge section has a, in particular substantially rectangular,

Entry surface for the tempering fluid and an exit surface. Preferably, the entrance surface is formed smaller than the exit surface, wherein the

Entrance surface facing the heat exchange section.

According to a preferred development, the tempering device has a duct connection device, which is provided with an independent, in the

Substantially cylindrical, fluid supply line is connectable. The

Kanalanschlusseinrichtung is configured, the tempering of the

Fluid supply by more than 45 °, preferably by about 90 °, to divert into the fluid channel. Preferably, the duct connection device has a

adapted in particular to the cross section of the fluid supply line, in

Substantially cylindrical, entrance surface and a substantially rectangular exit surface. The outlet surface faces the fluid channel, in particular the feed section, and allows the passage of the

Temperingfluids in the fluid channel. Preferably, the

Channel connection device with the inlet surface of the feed section connectable. Thus, the fluid flow from an independent, in particular commercially available, in particular cylindrical, fluid supply line along the substantially rectangular base plates, in particular along the in essential cuboidal fluid channel, are spread for the largest possible area for heat exchange with the base plate or the energy storage device. This preferred development has the advantage that the heat exchange between the tempering fluid, especially in the

Heat exchange section is improved due to the increased flow rate.

According to a preferred development, the duct connection device is designed with an elongate body. The duct connection device is formed with a substantially cylindrical inlet element for connection to a substantially cylindrical fluid supply line. To the

Inlet member is followed by a partially hollow distribution element, which extends along the base body, which is open to the fluid channel and the inlet member. In the distribution element, a spreading of the tempering fluid takes place in the fluid channel. Preferably, the distribution element is thinner than the base body plus adjacent energy storage device, particularly preferably thinner than the main body. Preferably, the distribution element is thin-walled, in particular with a metal sheet formed. This preferred development has the advantage that space can be saved. According to a preferred development, the tempering device also has one of these duct connection devices at the outlet of the fluid duct. This further channel connection device serves to deflect the tempering fluid into an independent fluid return line. This preferred development has the advantage that commercially available tubes can be used for removing the tempering fluid into or out of the fluid channel.

According to a preferred development, the tempering device has at least one temperature sensor, in particular designed as

Thermocouple, which is configured, a temperature of the base body or a thermally conductively connected to the base body To capture energy storage device, which is configured, a

Provide indication value proportional to the detected temperature.

Preferably, the temperature sensor is arranged on or adjacent to a second lateral surface of the base body, which is configured for heat-conducting connection with the energy storage device. So can one

independent fluid conveying device for the tempering fluid are switched on, in particular by an independent control device, in particular if the display value exceeds a predetermined first limit value or if the display value falls below a predetermined second limit value. Thus, based on the displayed value, the inlet temperature of the

Temperingfluids are set when entering the fluid channel, in particular by an independent control device. This preferred development has the advantage that the heat output to be transmitted can be adapted to the temperature of the energy storage device. In a preferred embodiment of the battery, the base body is formed with two substantially rectangular base plates, in particular made of aluminum, copper or an alloy with at least one or both of these metals. One or both of these base plates have the second one

Lateral surface for heat-conducting connection with one of these

Energy storage devices on. One or both of these base plates have raised edges for connecting the base plates to one another and in particular for guiding the tempering fluid. One or both of these base plates have the first lateral surface. The fluid channel extends between these base plates. The fluid channel has this

Heat exchange section, preferably this feed section, preferably this discharge section. One or both of these base plates or their first lateral surface have numerous of these depressions and / or projections, preferably depressions. The wells and / or

Projections are distributed over the second lateral surface or the heat exchange section and in particular to a matrix on the second lateral surface

arranged. Alternatively, the recesses and / or protrusions are in several staggered rows over the entire width of the fluid channel distributed on at least one of the base plates. Two of these duct connection devices are connected to the main body for deflecting the tempering fluid from the independent fluid supply line and into the independent fluid return line.

This preferred embodiment offers the advantage that with the

Kanalanschlusseinrichtung before the body heat exchange is improved by the tempering fluid over at least one of these

Base plates is spread. This preferred embodiment offers the advantage of lower manufacturing costs. This preferred embodiment offers the advantage that the first lateral surface can be provided with the depressions and / or projections with little effort before the base plates are connected. This preferred embodiment has the advantage that regions with a significantly lower flow velocity of the tempering fluid can be avoided. This preferred embodiment has the advantage that at the same time two of these energy storage devices with the

Tempering device can be tempered. This preferred

Embodiment offers the advantage that conventional cylindrical lines can be used as a fluid supply line and fluid return line. These

preferred embodiment has the advantage that with the

Feed section of the heat exchange in the heat exchange section is improved.

According to a preferred development, at least a plurality of these depressions and / or projections of the preferred embodiment are formed as spherical sections or spherical. This preferred development offers the advantage of a particularly low pressure loss in the tempering fluid.

According to a preferred refinement, the at least one of these base plates of the preferred embodiment has one of these temperature sensors. Preferably, the temperature sensor is adjacent to, especially preferably arranged in, the first or second lateral surface. This preferred development offers the advantage that an independent

Control device influence on the temperature and / or

Flow rate of Temperierfluids can take, in particular for increased heat exchange with one of these energy storage devices.

According to a preferred embodiment, the diameter of a plurality of these recesses and / or projections depends on the width of the fluid channel. Preferably, the diameter of a plurality of these recesses and / or projections is up to 5% of the width of the fluid channel. Preferably, with a width of the fluid channel of about 140 mm across the width about 10 of these

Wells and / or projections arranged in a row. Preferably, the distance between the recesses and / or projections along the width of the fluid channel is at least twice the diameter of these recesses and / or projections. Preferably, the distance between the recesses and / or projections in the flow direction is at least twice the diameter of these recesses and / or projections.

Preferably, the distance of the recesses and / or projections along the width of the fluid channel corresponds to the distance of the recesses and / or projections in the flow direction. Preferably, s _v / d _{v is} about 0.2. Particularly preferred are the

Wells and / or projections on a diameter of about 5 mm at a depth of about 1 mm.

For producing the tempering device, in particular of several

Recesses on one of these first lateral surfaces of one of these base bodies, in particular on one of these first lateral surfaces of one of these fluid channels, serve the preferred method described below, wherein a

Shaping tool with an arrangement of "negatives" to these

Wells and / or protrusions can be used. The depressions and / or projections may be stamped or stamped on the first Shell surface can be made with this shaping tool (step S1). This preferred method offers the advantage of lower production costs. This preferred method has the advantage that the production can be automated with little effort. This preferred method has the advantage that the recesses and / or protrusions can be produced with increased accuracy.

According to a preferred embodiment of the aforementioned method, the forming tool is designed as a roller with the arrangement of "negatives", the roller being able to roll on this first lateral surface of a cut-to-size base body (step S2), this step having the advantage of lower production costs preferred development has the advantage that the production can be automated with little effort.

According to a further preferred development of the method, the roller rolls off on an elongated metal plate, subjected to a force (step S3), and the basic bodies are produced by cutting sections of the elongate metal

Metal plate isolated (step S4). This preferred development offers the advantage of lower Herste II cost. This preferred development has the advantage that the production can be automated with little effort. Alternatively, a punch or a roll without "negatives" is used instead of said shaping tool.

These geometrically indeterminate bodies between punch or roller and the main body or the oblong

Metal plate out (step S5). Then it is stamped or

unrolled force (step S6). Preferably, the geometrically indefinite bodies are removed again after step S6 (step S7), so that the depressions remain. Otherwise, the geometrically indeterminate bodies remain in the first lateral surface, whereby these projections are formed. According to another preferred method, one or both of these base plates are formed with a thin-walled metal sheet. In this case, the depressions and / or projections are produced by means of a forming process, in particular by means of pressing or deep drawing of the thin-walled metal sheet (step S13). This preferred method has the advantage that the manufacture of the base plates is simplified. This preferred method offers the advantage that the heat flow is increased.

As an alternative to steps S1, S2, S3 or S13, the recesses can be produced by an erosion method, in particular in one of the base plates (step S14). Preferably, the electrode is formed substantially corresponding to a negative of one of these recesses. This preferred alternative offers the advantage of lower production costs. Preferably, step S4 is subsequently performed. This preferred alternative has the advantage that the production can be automated with little effort. This preferred alternative has the advantage that the wells can be made with increased accuracy.

As an alternative to steps S5, S6, the recesses, in particular in one of the base plates, can be produced with at least partially substantially spherical bodies, which in particular are acted upon by a punch with a force in the direction of one of these first lateral surfaces (step 15). Preferably, step S4 is subsequently performed. This preferred alternative has the advantage that the production can be automated with little effort. This preferred alternative has the advantage that the wells can be made with increased accuracy.

The object is also achieved by a method for operating a

Tempering device, which has at least one of these temperature sensors. An independent control device, in particular the

Battery controller, processes this indication value (step S8), In particular, the independent control device combines the display value with one of these first and / or second limit values, in particular by forming a difference from the display value and one of these limit values.

If the result indicates that the first limit value has been exceeded, in particular at too high a temperature of the energy storage device, the independent control device activates this fluid delivery device for conveying the tempering fluids through the fluid channel (step S9), wherein the temperature control fluid has a lower temperature than the energy storage device. Alternatively or additionally, the independent control device lowers the inlet temperature of the tempering fluid (step S10). So can the

Energy storage device heat energy to be withdrawn. This

preferred method has the advantage that a harmful overheating of the energy storage device can be countered.

Parts of one of these electrochemical energy storage devices,

Energy storage devices can be removed by means of the tempering heat energy, the temperature of the energy storage device can be limited or decreased. As a result, the risk to the environment is reduced by the electrochemical energy storage device.

If the result indicates an undershooting of the second limit, in particular to a too low temperature of the energy storage device, then the independent control device turns off this fluid conveyor (step S1 1), whereupon the energy generated in the energy storage device

Heat output by supplying or removing an electric current in the energy storage device may at least partially remain. alternative When the fluid conveyor is activated, the independent control device raises the inlet temperature of the tempering fluid (step S12), so that the

Energy storage device heat energy can be supplied. This preferred method has the advantage that a damaging hypothermia of the energy storage device can be counteracted.

Further advantages, features and applications of the present invention will become apparent from the following description taken in conjunction with the figures. It shows:

Fig. 1 partially schematically a preferred embodiment of

Tempering device with a cuboid base body and two

Channel connection devices,

Fig. 2 partially schematically another preferred embodiment of

Tempering device with a cuboid base body and two alternative Kanalanschlusseinrichtungen, Fig. 3 partially schematically the open base of the

Tempering device according to Figure 1, one of these first lateral surfaces of the fluid channel with a matrix of wells and two

Channel connection devices,

Fig. 4 partially schematically a partial section of another preferred

temperature control,

Fig. 5 partially schematically a section through the main body of

preferred tempering device according to Figure 1,

Fig. 6 partially schematically shows two projections of a preferred recess or projection 7 partially schematically a battery according to the invention,

Fig. 8 partially schematically different preferred embodiments of

Tempering.

1 shows partially schematically a preferred embodiment of

Tempering device with a cuboid base body 1 and two laterally attached to the base body Kanalanschlusseinrichtungen 4.5. Of the

Base body 1 is substantially cuboid, in particular with two mutually connectable base plates formed. The main body 1 has one or two second lateral surfaces for thermally conductive connection to one of these energy storage devices. The main body 1 is formed with aluminum, copper or an alloy with at least one or both of these metals. The increased thermal conductivity of this body contributes to the increased exchange of heat energy or heat output with the energy storage device, not shown. The channel connection device 4 serves to deflect the tempering fluid from the not shown

Fluid supply line into the body. The duct connection device 5 serves to deflect the tempering fluid into a fluid return line (not shown). The channel connection devices 4, 5 are arranged with respect to the main body 1 such that they do not extend beyond the longer parallel edges of the main body 1. This saves space.

Fig. 2 shows in part schematically a further preferred embodiment of the tempering device with a cuboid base body 1 and two laterally attached to the base body alternatively Kanalanschlusseinrichtungen 2.3. The main body 1 is substantially parallelepiped-shaped, in particular with two mutually connectable base plates formed. The main body 1 has one or two of these second lateral surfaces for thermally conductive connection, each with an energy storage device. The main body 1 is formed with aluminum, copper or an alloy with at least one or both of these metals. The thermal conductivity of the body contributes to the increased Exchange of heat energy or heat output with the energy storage device, not shown. The duct connection device 4 serves to deflect the tempering fluid out of the fluid supply line, not shown, into the base body. The duct connection device 5 serves to deflect the tempering fluid into a fluid return line (not shown). The

Kanalanschlusseinrichtungen 4.5 are arranged with respect to the base body 1 so that they extend over the longer parallel edges of

Base body 1 also extend. With less deflection of the

Temperingfluids is compared to the embodiment of Figure 1 lower pressure loss in the tempering possible. This saves energy for operating the tempering device.

Fig. 3 shows partially schematically the open base body 1 of

Tempering device according to Figure 1, one of these first lateral surfaces of the fluid channel 6 with a matrix of recesses 7 and two cut

Duct connection devices 4,5.

The main body 1 and the channel connection devices 4, 5 essentially correspond to those of FIG. 1. The main body 1 is formed with two base plates, wherein only one of these base plates 3 is shown.

The fluid channel 6 with a substantially rectangular cross-section extends along the base plate 3. In the first lateral surface of the fluid channel 6 and the

Base plate 3, numerous recesses 7 are introduced, which are arranged as a matrix. In particular, the depressions 7 are formed as spherical sections and embossed with "negatives" on this shaping tool into the first lateral surface of the fluid channel 6 or the base plate 3. The depressions 7 are formed as spherical sections and with "negatives" on this shaping tool into the first lateral surface of the Fluid channel 6 and the base plate 3 embossed. The depressions 7 serve to increase the Turbulence in the tempering fluid, whereby the heat exchange between the tempering fluid and the base plate 3 is improved.

The recesses 7 are arranged as a matrix and distributed over the entire width of the fluid channel on the base plate 3. Alternatively, not shown, the recesses 7 may be distributed in a plurality of mutually offset rows over the entire width of the fluid channel on the base plate 3.

The recesses 7 serve to increase the turbulence in the tempering, whereby the heat exchange between the tempering fluid and the

Base plate 3 is improved. Thus, the heat exchange between the tempering fluid and the energy storage device, not shown, is improved. In comparison, in particular, with ribs, in particular transversely to the main flow direction, the pressure loss in the tempering fluid is limited by the depressions or projections.

From the duct connection device 4 with a substantially cylindrical

Entry surface of the tempering enters the substantially rectangular fluid channel 6 a. The spread of the tempering takes place in the

Kanalanschlusseinrichtung 4 for the largest possible heat exchange between the tempering fluid and the base plate 3. So is the

Heat exchange between the tempering fluid and the base plate 3 is improved. After passing through the heat exchange section 10, which at least partially coincides with the matrix of recesses 7, the tempering fluid enters the second duct connection device 5. The

Tempering fluid is deflected in the second channel connecting device 5 in the fluid return line, not shown, and collected in the substantially cylindrical outlet surface of the second channel connecting device 5.

The base plate 3 has raised edges, symbolized by black lines, which the connection with the other, not shown Base plate and the leadership of the tempering serve. The raised edges are arranged in particular circumferential, but are interrupted in particular where the tempering fluid between the

Kanalanschlusseinrichtungen 4,5 and the main body or fluid channel is replaced. With the illustrated embodiment of the raised edges areas with significantly lower flow velocity of the

Temperingfluids be avoided.

Length L _G and width BQ of the base plate 3 are at least 10 times or 5 times the wall thickness W _G. The fluid channel 6 is almost as wide as the base plate 3, so that B _F / B _{G is} greater than 0.6.

FIG. 4 partially shows, schematically, a partial section of another preferred tempering device similar to the tempering device according to FIG. 3. The base plate 3 delimits the fluid channel, its feed section 8 and its heat exchange section 10, which at least partially coincides with the matrix of recesses 7. The second base plate is not shown.

From the duct connection device 4 with a substantially cylindrical

Ingress surface enters the tempering fluid in the substantially rectangular fluid channel. The spread of the tempering takes place in the

Kanalanschlusseinrichtung 4 and in the feed section 8 for the largest possible heat exchange between the tempering and the

Base plate 3 in the heat exchange section 10. Thus, the heat exchange between the tempering fluid and the base plate 3 is improved.

The recesses 7 are formed as spherical sections and embossed with "negatives" on this shaping tool into the first lateral surface of the fluid channel 6 or the base plate 3. The recesses 7 are used to increase the

Turbulence in the tempering fluid, whereby the heat exchange between the tempering fluid and the base plate 3 is improved. The recesses 7 are arranged as a matrix and distributed over the entire width of the fluid channel on the base plate 3. Alternatively, not shown, the recesses 7 may be distributed in a plurality of mutually offset rows over the entire width of the fluid channel on the base plate 3. The recesses 7 serve to increase the turbulence in the tempering, whereby the heat exchange between the tempering fluid and the

The base plate 3 has raised edges, symbolized by black lines, which serve the connection with the other, not shown base plate and the leadership of the tempering. The raised edges are arranged in particular circumferential, but are interrupted in particular where the tempering fluid between the

Temperingfluids be avoided.

FIG. 5 shows a partially schematic section through the main body of the preferred tempering device according to FIG. 1. The main body has two base plates 2, 3 in particular made of aluminum, copper or an alloy with at least one or both of these metals. Between the base plates 2, 3 the fluid channel with feed section 8, heat exchange section 10 and discharge section 9 is formed. The heat exchange section 10 has the matrix of recesses 7, shaped as spherical sections in the base plate 3, to increase the turbulence in the tempering fluid and improve the heat exchange between the

Tempering fluid and the base plates 2,3. In the feed section 8, the tempering fluid is accelerated for higher flow rate and improved heat exchange in the

Heat exchange section 10. For this purpose, the wall thickness of the base plate 2 of the duct connection device 4 in the direction of the heat exchange section 10 increases. In the heat exchange section 10, the cross section of the fluid channel is uniform, neglecting the recesses and / or projections. To

Passing the heat exchange section 10 enters the tempering in the

Abführabschnitt 9 a. The discharge gate 9 corresponds in

Essentially the supply section 8, but is flowed through in the opposite direction. In the discharge section 9, the tempering fluid is decelerated. For this purpose, the wall thickness of the base plate 2 decreases from

Heat exchange section 10 in the direction of the Kanalanschlusseinrichtung 5 from. Subsequently, the tempering occurs in the channel connection device 5 and is deflected there in the direction of the fluid return line, not shown.

The arrow v _T shows the main flow direction or the direction of the time-averaged flow velocity of the tempering fluid.

The ratio of the length of the feed section 8 and the length of the heat exchange section 10 is about 0.22. This will be the

Heat exchange between the tempering fluid and the body improved. Fig. 6 shows in part schematically two projections of a preferred

Recess 7 or projection, which is formed as a ball portion, which are seen in particular from above circular. The ratio of the depth or the height of the recess 7 and des

Projection to the width of the recess 7 and the projection is about 0.24. As a result, the pressure loss which the tempering fluid experiences along the fluid channel is reduced. Fig. 7a shows partially schematically two of this energy storage device

12,12a, between which one of these tempering 1 1 is arranged. The tempering 1 1 is thermally conductive with the

Energy storage devices 12,12a connected. The at least one

Fluid channel and the wells and / or projections of the body 1 are not shown.

Fig. 7b shows partially schematically two of these first arrangements, each with two of these energy storage devices 12,12a, between which one of these tempering 1 1 is arranged. The tempering device 1 1 is thermally conductively connected to the energy storage devices 12,12a. The at least one fluid channel and the recesses and / or projections of the main body 1 are not shown. One of these first arrangements is framed by dashed lines.

Fig. 7c shows partially schematically four of these second arrangements, each with one of these energy storage devices 12 and adjacent thereto arranged one of these tempering 1 1. The tempering device 11 is thermally conductively connected to the adjacent energy storage device 12. The at least one fluid channel and the recesses and / or projections of the main body 1 are not shown. One of these second arrangements is framed by dashed lines. Fig. 7d shows partially schematically two of these first arrangements, each with two of these energy storage devices 12,12a, between which one of these tempering 1 1 is arranged. The tempering 1 1 is heat-conducting connected to the energy storage devices 12,12a. The at least one fluid channel and the recesses and / or projections of the main body 1 are not shown. Both of these first arrangements are accommodated in a battery housing 13. The battery case 13 urges the energy storage devices and the tempering devices to each other. The battery housing 13 has two battery terminals 14, 14a of different electrical polarity. Not shown is the interconnection of

Energy storage devices with the battery terminals 14, 14a. Also not shown are thermocouples for detecting a temperature of the main body or energy storage devices, the control device, the conveyor for the tempering.

FIG. 8 a shows, partially schematically, a preferred tempering device 1 1 with a main body 1. The main body 1 has a second lateral surface 16 for thermally conductive connection to the energy storage device 12. Through the base body 1, a plurality of independent, substantially hollow-cylindrical, fluid channels 6 extend, which are arranged substantially parallel to one another. Each of these fluid channels 6 has a first lateral surface 15, which for limiting the fluid channel 6 and for guiding the

Temperingfluids serves. The main body 1 is formed with an aluminum alloy. Not shown are the recesses and / or projections in the first lateral surfaces 15, which serve to increase the turbulence of the flowing in the fluid channel 6 tempering.

Fig. 8b shows a partially schematically another preferred

Temperature control device 1 1 with a base body. 1 This tempering device 1 1 essentially corresponds to the tempering device of FIG. 8a, wherein deviating the fluid channels 6 are each formed substantially cuboid.

Fig. 8c partially shows schematically a further preferred

Tempering device 1 1, wherein the two-part body is through the Base plate 2 and the second base plate 3 is formed. The base plates 2, 3 are formed with an aluminum alloy. The first base plate 2 has the second lateral surface 16 for heat-conducting contact or connection to the energy storage device 12 and one of these first lateral surfaces 15a for delimiting the fluid channel 6 and for guiding the tempering fluid. The second base plate 3 has raised edges for connection to the first base plate 2, for limiting the fluid channel 6 and for guiding the

Temperingfluids on. Furthermore, the second base plate 3 has a further of these first lateral surfaces 15. Not shown are the depressions and / or projections in the first lateral surfaces 15, 15a, which serve to increase the turbulence of the fluid flowing in the fluid channel 6 tempering. to

Increasing the turbulence of the temperature control fluid flowing in the fluid channel 6, it is sufficient that one of these first lateral surface 15, 15a has the recesses and / or projections.

reference numeral

I basic body

2, 3 base plates of the main body

4, 5 duct connection device

6 fluid channel

7 deepening

8 feed section

9 discharge section

10 heat exchange section

I I tempering device

12, 12a electrochemical energy storage device

13 battery case

14, 14a Battery connections

15 first lateral surface

16 second lateral surface

Vr. rj! Main flow direction or direction of the time-averaged

flow rate

Claims

P a n t a n s p r e c h e

Battery with a variety of electrochemical

Energy storage devices (12, 12a) and at least one

Tempering device (1 1),

wherein the at least one tempering device (11) for

Heat exchange with at least one, in particular adjacent, of these energy storage devices (12, 12a) is configured, wherein the at least one tempering device (11) comprises:

a base body (1), in particular a substantially cuboid, which is designed for heat-conducting connection with at least one of these energy storage devices (12, 12a),

- At least one fluid channel (6) which is at least partially guided by the base body (1), which for guiding a flowing tempering fluid, in particular along a

Main flow direction, is configured, which has at least a first lateral surface (15),

- Several recesses (7) and / or projections, which are arranged on the first lateral surface (5), which are in particular designed to increase the turbulence of the tempering fluid, in particular at least adjacent to the recesses (7) and / or projections.

Battery according to the preceding claim,

wherein the base body (1) with at least one, preferably two, of these energy storage devices (12, 12a) is thermally conductive connectable and / or

wherein the at least one tempering device (11) can be arranged between two of these energy storage devices (12, 12a). Battery according to one of the preceding claims, wherein at least some of these recesses (7) and / or projections each have at least substantially the shape of a spherical section, a cone or a pyramid.

Battery according to one of the preceding claims, wherein a plurality of these recesses (7) and / or projections in a row,

preferably in a plurality, in particular parallel, rows, particularly preferably as a matrix, are arranged.

Battery according to one of the preceding claims, wherein the at least one fluid channel (6), in particular transversely to

Main flow direction, a substantially cylindrical or rectangular cross-sectional area.

Battery according to one of the preceding claims, wherein the at least one tempering device (11) has a base body (1) of substantially cuboid design, wherein the

Base body (1) for heat-conducting connection with at least one of these energy storage devices (12, 12a) is configured, and a plurality of these fluid channels (6), which are arranged in the base body (1) substantially parallel to each other.

Battery according to one of claims 1-5, wherein the at least one tempering device (11) has one of these base body (1), wherein the base body (1) with two, in particular substantially

rectangular, base plates (2,3) is formed, wherein

- The at least one fluid channel (6) between these two

Base plates (2,3) is arranged,

- At least one of these base plates (2,3) for heat-conducting

Connection to at least one of these energy storage devices (12, 12a) is configured,

- At least one of these base plates (2,3) has a plurality of these recesses (7) and / or projections,

- Preferably, at least one of these base plates (2,3) is formed with a raised edge for connection to the other of these base plates (2,3).

A battery according to any one of the preceding claims, wherein

- The fluid channel (6) has a feed section (8) and a

Having heat exchange section (10),

the heat exchange section (10) has a plurality of these depressions (7) and / or projections,

- The supply section (8) is designed, the

Flow velocity of the tempering fluid in the direction of

Heat exchange section (10) to increase, in particular for improved heat exchange with the energy storage device (12, 12 a),

- Preferably, the feed section (8) one, in particular in

Has substantially rectangular, inlet surface for the tempering fluid and an exit surface,

- Preferably, the entrance surface larger than the exit surface

is formed, wherein the outlet surface facing the heat exchange section (10).

Battery according to one of the preceding claims, with at least one duct connection device (4), which

- Can be connected to an independent fluid supply line,

is configured to divert the tempering fluid from the fluid supply line by more than 45 °, preferably by approximately 90 °, into the fluid channel (6),

preferably has a substantially cylindrical entrance surface and a substantially rectangular exit surface,

- Preferably with the entrance surface of the feed section (8) is connectable. Battery according to one of the preceding claims with a

Temperature sensor, which is configured, a temperature of the

Main body (1) or one with the base body (1) thermally conductively connected energy storage device (12, 12a) to detect, which is configured to provide a display value which is proportional to the detected temperature.

Method for producing one of these tempering devices (1 1), in particular for producing a plurality of these depressions (7) and / or projections on one of these first lateral surfaces (15) of the tempering device (11), wherein the depressions (7) and / or

Projections are embossed with a shaping tool in the first lateral surface (15).

Method for producing one of these tempering devices (11), in particular for producing a plurality of these depressions (7) and / or projections on one of these first lateral surfaces (15) of the tempering device (11), comprising the steps:

- arranging geometrically indeterminate bodies on the first

Lateral surface (15) of the main body (1),

Pressing the geometrically indefinite bodies in the direction of the first lateral surface (15) with a punch or roller,

preferably

- Remove the geometrically indeterminate body.

Method for producing one of these temperature control devices (11), in particular for producing a plurality of these depressions (7) and / or projections on one of these first lateral surfaces (15) of the tempering device (11), wherein depressions (7) and / or projections by means of a forming process , In particular by means of pressing or deep drawing, in one or both of these base plates (2, 3), in particular each formed as a thin-walled metal plate, are introduced. A method of operating a tempering device (11) according to claim 10, wherein an independent conveyor for the tempering fluid is activated when the indication value exceeds a predetermined first limit value.