GB2539039A - Battery system with cooling system for cooling battery cells of the battery system - Google Patents

Battery system with cooling system for cooling battery cells of the battery system Download PDF

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Publication number
GB2539039A
GB2539039A GB1509741.3A GB201509741A GB2539039A GB 2539039 A GB2539039 A GB 2539039A GB 201509741 A GB201509741 A GB 201509741A GB 2539039 A GB2539039 A GB 2539039A
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GB
United Kingdom
Prior art keywords
battery
section
cooling fluid
conducts
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1509741.3A
Other versions
GB201509741D0 (en
Inventor
Sauer Nikolaus
Hufenbach Christian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Transportation Germany GmbH
Original Assignee
Bombardier Transportation GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bombardier Transportation GmbH filed Critical Bombardier Transportation GmbH
Priority to GB1509741.3A priority Critical patent/GB2539039A/en
Publication of GB201509741D0 publication Critical patent/GB201509741D0/en
Priority to CN201520714302.5U priority patent/CN205069808U/en
Publication of GB2539039A publication Critical patent/GB2539039A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/627—Stationary installations, e.g. power plant buffering or backup power supplies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H01M10/6565—Gases with forced flow, e.g. by blowers with recirculation or U-turn in the flow path, i.e. back and forth
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A battery system 11 for storing electrical energy comprises at least one battery (1a-c, fig 1) having at least one battery cell 2a, 2b and comprising a cooling system for cooling at least two battery cells of the battery system 11. The battery system 11 comprises at least a first and a second battery cell 2a, 2b, and the cooling system comprises conducts for conducting cooling fluid, wherein a first section 5a of the conducts is attached to the first battery cell 2a and a second section 5b of the conducts is attached to the second battery cell 2b. The first section 5a and the second section 5b are located downstream and upstream with respect to each other, so that cooling fluid continuously flows through the first section 5a and afterwards through the second section 5b, or, depending on the flow direction, vice versa. The cooling system also comprises a pumping arrangement 16 for pumping the cooling fluid through the conducts and a control 17 for controlling operation of the pumping arrangement 16, wherein the control 17 is adapted to control the pumping arrangement 16 to cause a continuous stream of the cooling fluid through the first and second section 5a, 5b of the conducts in a first direction during a first operating state and to cause a continuous stream of the cooling fluid through the first and second section 5a, 5b of the conducts in a second direction opposite to the first direction during a second operating state, i.e. the direction of flow is reversed.

Description

Battery system with cooling system for cooling battery cells of the battery system The invention relates to a battery system for storing electrical energy. The battery system comprises at least one battery having at least one battery cell and comprising a cooling system for cooling the battery cells of the battery system. Furthermore, the invention relates to the operation of such a battery system.
In particular, the invention relates to high power battery systems which are, for example, used onboard electric vehicles, in power plants or industrial facilities. However, the cooling system described in the following could alternatively be used not to cool a battery system, but any other system to be cooled. One example of a system other than a battery system which can be combined with the cooling system is a converter for converting electric currents (for example alternating currents into direct current, or vice versa). In particular, controllable semiconductor switches (such as IGBTs) can be cooled in the same manner as battery cells of the battery system.
A preferred application of the cooling system relates to the cooling of a battery system onboard an electric vehicle which receives electric energy by an inductive power transfer system using magnetic fields in order to transfer the energy to the vehicle. The vehicle may be a rail vehicle, a passenger bus or another road automobile.
It is known to cool battery cells of a battery system with, for example, air, oil vapour or a liquid as cooling fluid. The cooling system comprises conducts through which the cooling fluid flows and receives heat from the battery cells. As a result, the temperature of the cooling fluid increases. After leaving the conduct sections attached to the battery cells, the cooling fluid can be cooled using a heat exchanger and can be recirculated through the battery or batteries of the battery system. This is typically the case if there is a closed circuit conduct system. In case of air, the heated air may be released to the ambience and fresh air at lower temperatures may be sucked into the conducts. In any case, the battery system comprises a cooling fluid inlet and a cooling fluid outlet and the temperature of the cooling fluid is increasing while the cooling fluid flows through the conduct sections within or along the battery system while the battery cells of the battery system are operated, for example charged or discharged.
Since the temperature of the cooling fluid gradually increases while the cooling fluid flows from the inlet to the outlet, battery cells which are located closer to the fluid outlet are less effectively cooled and are operated at higher operating temperatures.
As, for example, described in US 2013/0266838 Ai, the operating temperature of individual battery cells should not exceed a working range, as otherwise the lifetime of the individual battery cells is reduced. The document describes a cooling module for cooling the battery cells of a battery.
In particular the lifetime of lithium-ion battery cells significantly depends on the operating temperature. The longer the cell is operated at higher operating temperatures, the shorter the lifetime.
It is an object of the present invention to provide a battery system comprising a cooling system for cooling battery cells of the battery system which increases the lifetime of battery cells. It is another object to provide a corresponding method of operating a battery system.
According to a basic idea of the present invention, the flow direction of the cooling fluid is reversed from time to time. Therefore, battery cells located closer to the fluid outlet during a first operating state are located closer to the cooling fluid inlet during a second operating state in which the flow direction of the cooling fluid is reversed compared to the first operating state.
As a consequence, the average operating temperatures over the different operating states is smaller for the battery cells which would be located closer to the fluid outlet in case of fluid flow in only one direction. Since the lifetime of battery cells typically decreases progressively with increasing operating temperature, the lifetime of these battery cells is increased by reversing the cooling fluid flow direction. In particular, the average operating temperature of the battery cells which are located closest to the cooling fluid outlet is reduced and, therefore, breakdown of these battery cells before the end of the lifetime of most of the battery cells is avoided. The lifetime of the battery cells which would be located closer to the fluid inlet in case of flow in only one direction is decreased by reversing the fluid flow from time to time, but the lifetime is still longer than the lifetime of battery cells closer to the fluid outlet in case of fluid flow in only one direction. Since the lifetime of the battery is determined by the shortest lifetime of any of its battery cells, reversing the fluid flow increases the battery lifetime.
In particular, the following is proposed: A battery system for storing electrical energy, the battery system comprising at least one battery having at least one battery cell and comprising a cooling system for cooling at least two battery cells of the battery system, wherein the battery system comprises at least a first and a second battery cell, wherein the cooling system comprises: -conducts for conducting cooling fluid, wherein a first section of the conducts is attached to the first battery cell and a second section of the conducts is attached to the second battery cell and wherein the first section and the second section are located downstream and upstream with respect to each other, so that cooling fluid during a continuous stream of cooling fluid flows through the first section and afterwards through the second section, or -depending on the flow direction -vice versa, a pumping arrangement for pumping the cooling fluid through the conducts and a control for controlling operation of the pumping arrangement, wherein the control is adapted to control the pumping arrangement to cause a continuous stream of the cooling fluid through the first and second section of the conducts in a first direction during a first operating state and to cause a continuous stream of the cooling fluid through the first and second section of the conducts in a second direction opposite to the first direction during a second operating state.
Furthermore, a method is proposed of operating a battery system for storing electrical energy, the battery system comprising at least one battery having at least one battery cell and comprising a cooling system for cooling at least two battery cells of the battery system, wherein the battery system comprises at least a first and a second battery cell, wherein: - cooling fluid is pumped through conducts, wherein a first section of the conducts is attached to the first battery cell and a second section of the conducts is attached to the second battery cell, - cooling fluid of a continuous stream of cooling fluid is caused to flow through the first section and afterwards through the second section, or -depending on the flow direction -vice versa, the continuous stream of cooling fluid through the first and second section of the conducts flows in a first direction during a first operating state and is reversed to flow through the first and second section of the conducts in a second direction opposite to the first direction during a second operating state.
The pumping arrangement may comprise a single pump only, or a plurality of pumps. In particular in the case of a single pump, valves may be used to reverse the flow direction. Another possibility, in case of a liquid as the cooling fluid, is to use a pump which can be operated as a pushing pump (arranged upstream of the conduct sections through the battery system) and as well as a suction pump (located downstream of the conduct sections of the battery system).
The conduct sections which are attached to the different battery cells may comprise hydraulically parallel and/or serial paths of conduct for the cooling fluid. However, there are at least two conduct sections (the first and second section mentioned above) which are arranged hydraulically in series to each other.
Typically, battery systems comprise more than the first and second battery cell and/or more than two battery cells of the battery system are connected in each case to at least one conduct section, wherein these conduct sections are arranged hydraulically in series to each other, i.e. the cooling fluid flows through the different sections one after the other. This does not mean that these sections are directly connected to each other. Rather, there may be a further section of the conduct in between the sections which are attached to the different battery cells.
In particular, the flow direction of the cooling fluid through the first and second section of the conducts may be repeatedly changed. With reference to the battery system this corresponds to the control being adapted to repeatedly switchover from the first operating state to the second operating state and back to the first operating state, so that the cooling fluid repeatedly changes its flow direction through the first and second section of the conducts.
Repeated reversal of the flow direction reduces the average temperature of battery cells reliably and reduces the risk that some of the battery cells are mainly operated at high temperatures while other battery cells are mainly operated at low temperatures.
In particular, the flow direction of the cooling fluid through the first and second section of the conducts may be reversed each time when operation of the cooling system starts compared to the previous operation of the cooling system. With reference to the battery system this corresponds to the control being adapted to reverse the flow direction of the cooling fluid through the first and second section of the conducts each time when operation of the cooling system starts. The term "reverse" refers to the previous operation of the cooling system immediately before the operation starts or immediately before a period of non-operation before the start. The operation after the start is therefore compared to the (nearest) previous operation of the cooling system. The advantage of reversing the flow direction of the cooling fluid at the start of the operation of the cooling system is that no interruption of the cooling process is necessary. Furthermore, this can be realized easily. For example, the control of the cooling system may comprise a data storage or other means for saving the information about the flow direction during the previous operation of the cooling system or about the flow direction intended after the start. This makes sure that the flow direction is actually reversed with the start.
In addition or alternatively, the flow direction may be reversed (in particular by the control) during operation of the cooling system and/or of the battery system, in particular while the battery cells are not charged or discharged with energy and/or while the battery cell temperature (in particular, the highest temperature of all battery cells) is smaller than a predefined threshold temperature. According to this embodiment, the flow direction can be reversed more often and is not restricted by the requirement that the operation of the cooling system is interrupted and restarted.
In particular, the first battery cell may be part of a first battery of the battery system and the second battery cell may be part of a second battery of the battery system, so that cooling fluid during the continuous stream of cooling fluid flows through and/or along the first battery and afterwards through and/or along the second battery or -depending on the flow direction -vice versa. Therefore, different average operating temperatures of battery cells in different batteries can be avoided. The use of the terms "first battery cell" and "second battery cell" is for clarity of language only. It does not restrict the invention to either two battery cells in different batteries or two battery cells in the same battery. Rather, there may be embodiments of the battery system is having a plurality of battery cells being part of a first battery and at least one further battery cell being part of a second battery, wherein all these battery cells are attached to sections of the conduct through which the same stream of cooling fluid sequentially flows.
In the following, examples of the present invention are described with reference to the attached figures. The individual figures schematically show: Fig. 1 a battery system comprising three batteries and a cooling system, Fig. 2 a battery system having conducts for conducting a cooling fluid in a closed circuit and Fig. 3 a battery system similar to the system shown in Fig. 2 with a one-way pump and valves for reversing the flow direction of the cooling fluid.
The example of a battery system shown in Fig. 1 comprises three batteries 1 a, 1 b, 1 c. As schematically shown for the first battery la, each battery 1 has a plurality of battery cells 2. The number of battery cells per battery may vary for different embodiments in practice. Also, the electrical connection of the battery cells to each other and to external electrical contacts for connecting the batteries may vary and is not illustrated, since it may correspond to any embodiment of a battery system known in the art.
The batteries 1 are cooled during operation using a cooling fluid which is conducted by conducts 3, 4, 5. On the left-hand side of Fig. 1, a fluid inlet 3 is shown which conducts the cooling fluid to the first battery 1 a. The interior conducts within the batteries 1 are not shown and may, for example, have the features disclosed by US 2013/0266838 Al. A further conduct section 5 connects the first battery la with the second battery 1 b for conducting the cooling fluid. Another conduct section 5 connects the second battery 1 b with the third battery lc. In addition, there is a fluid outlet 4 for conducting cooling fluid out of the third battery lc.
In practice, less or more than three batteries may hydraulically be connected in series to each other by conducts. In addition or alternatively, a battery system may comprise more than one series connection (with respect to fluid conducts) of batteries, wherein the series connections are hydraulically connected parallel to each other.
The flow direction of the cooling fluid is indicated in Fig. 1 by two arrows. However, according to the present invention, the flow direction can be reversed. This means, the fluid inlet 3 becomes the fluid outlet and the fluid outlet 4 becomes the fluid inlet if the flow direction is reversed.
The closed circuit 15 for conducting a cooling fluid through a battery system 11 shown in Fig. 2 is connected to a pump 16 which in turn is controlled by a control 17. As indicated by the arrow shown on the right-hand side of Fig. 2, the flow direction of the cooling fluid can be reversed. In particular, the control 17 can control the operation of the pump 16 so that the pump 16 forces the cooling fluid clockwise through the closed circuit 15 during a first operating state and anti-clockwise during a second operating state.
The battery system 11 in Fig. 2 is schematically shown. It comprises at least a first battery cell 2a and a second battery cell 2b. The first battery cell 2a is attached to a first conduct section 5a and the second battery cell 2b is attached to a second conduct section 5b. In the example shown, the term "attached' means that the respective conduct section 5a, 5b passes through the battery cell 2a, 2b. generally speaking, the battery system 11 may comprise one or more batteries, wherein each battery may comprise at least one battery cell. In total, the battery system has at least two battery cells.
Reversing the operating direction of the pump 16 is only one possibility to reverse the flow direction of the cooling fluid. Another possibility is described in the following with respect to Fig. 3.
The closed circuit 25 for conducting a cooling fluid through the battery system 11 shown in Fig. 3 can be connected to a pump 26 which has only one operating direction. Cooling fluid can be pumped by the pump 26 only in the direction from left to right in Fig. 3 as shown by an arrow. There are four valves 28 which can be opened and closed individually for reversing the flow direction of the cooling fluid through the closed circuit 25. For clockwise flow of the cooling fluid, the first valve 28a and the third valve 28c are open, while the second valve 28b and the fourth valve 28d are closed. For anti-clockwise flow of the cooling fluid, the second and fourth valves 28b, 28d are open while the first and third valves 28a, 28c are closed.

Claims (8)

  1. Claims 1. A battery system (11) for storing electrical energy, the battery system (11) comprising at least one battery (1) having at least one battery cell (2) and comprising a cooling system for cooling at least two battery cells of the battery system (11), wherein the battery system (11) comprises at least a first and a second battery cell (2a, 2b), wherein the cooling system comprises: - conducts for conducting cooling fluid, wherein a first section (5a) of the conducts is attached to the first battery cell (2a) and a second section (5b) of the conducts is attached to the second battery cell (2b) and wherein the first section (5a) and the second section (5b) are located downstream and upstream with respect to each other, so that that cooling fluid during a continuous stream of cooling fluid flows through the first section (5a) and afterwards through the second section (5b), or -depending on the flow direction -vice versa, - a pumping arrangement (16) for pumping the cooling fluid through the conducts and - a control (17) for controlling operation of the pumping arrangement (16), wherein the control (17) is adapted to control the pumping arrangement (16) to cause a continuous stream of the cooling fluid through the first and second section (5a, 5b) of the conducts in a first direction during a first operating state and to cause a continuous stream of the cooling fluid through the first and second section (5a, 5b) of the conducts in a second direction opposite to the first direction during a second operating state.
  2. 2. The battery system of claim 1, wherein the control (17) is adapted to repeatedly switchover from the first operating state to the second operating state and back to the first operating state, so that the cooling fluid repeatedly changes its flow direction through the first and second section (5a, 5b) of the conducts.
  3. 3. The battery system of claim 1 or 2, wherein the first battery cell (2a) is part of a first battery of the battery system (11) and the second battery cell (2b) is part of a second battery of the battery system (11), so that cooling fluid during the continuous stream of cooling fluid flows through and/or along the first battery and afterwards through and/or along the second battery or -depending on the flow direction -vice versa.
  4. 4. The battery system of one of claims 1 to 3, wherein the control (17) is adapted to reverse the flow direction of the cooling fluid through the first and second section (5a, 5b) of the conducts each time when operation of the cooling system starts compared to the previous operation of the cooling system.
  5. 5. A method of operating a battery system (11) for storing electrical energy, the battery system (11) comprising at least one battery (1) having at least one battery cell (2) and comprising a cooling system for cooling at least two battery cells of the battery system (11), wherein the battery system (11) comprises at least a first and a second battery cell (2a, 2b), wherein: - cooling fluid is pumped through conducts, wherein a first section (5a) of the conducts is attached to the first battery cell (2a) and a second section (5b) of the conducts is attached to the second battery cell (2b), - cooling fluid of a continuous stream of cooling fluid is caused to flow through the first section (5a) and afterwards through the second section (5b), or -depending on the flow direction -vice versa, - the continuous stream of cooling fluid through the first and second section (5a, 5b) of the conducts flows in a first direction during a first operating state and is reversed to flow through the first and second section (5a, 5b) of the conducts in a second direction opposite to the first direction during a second operating state.
  6. 6. The method of claim 5, wherein the flow direction of the cooling fluid through the first and second section (5a, 5b) of the conducts is repeatedly changed.
  7. 7. The method of claim 5 or 6, wherein the first battery cell (2a) is part of a first battery of the battery system (11) and the second battery cell (2b) is part of a second battery of the battery system (11), so that cooling fluid during the continuous stream of cooling fluid flows through and/or along the first battery and afterwards through and/or along the second battery or -depending on the flow direction -vice versa.
  8. 8. The method of one of claims 5 to 7, wherein the flow direction of the cooling fluid through the first and second section (5a, 5b) of the conducts is reversed each time when operation of the cooling system starts compared to the previous operation of the cooling system.
GB1509741.3A 2015-06-05 2015-06-05 Battery system with cooling system for cooling battery cells of the battery system Withdrawn GB2539039A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1509741.3A GB2539039A (en) 2015-06-05 2015-06-05 Battery system with cooling system for cooling battery cells of the battery system
CN201520714302.5U CN205069808U (en) 2015-06-05 2015-09-15 Vehicle including cooling system's that has cell that is used for battery system battery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1509741.3A GB2539039A (en) 2015-06-05 2015-06-05 Battery system with cooling system for cooling battery cells of the battery system

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GB201509741D0 GB201509741D0 (en) 2015-07-22
GB2539039A true GB2539039A (en) 2016-12-07

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US11552347B2 (en) 2019-12-11 2023-01-10 Ford Global Technologies, Llc Bi-directional switchable cooling flow for traction battery

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CN105870537A (en) * 2016-05-10 2016-08-17 华霆（合肥）动力技术有限公司 Temperature control method and system and battery system
DE102017210185A1 (en) * 2017-06-19 2018-12-20 Robert Bosch Gmbh Cooling system with a plurality of elements to be cooled
CN113224418B (en) * 2021-04-25 2022-11-22 长安大学 Power battery reciprocating flow cooling system with rotary valve and control method

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DE102010009847A1 (en) * 2010-03-02 2011-09-08 Volkswagen Ag Accumulator system i.e. high volt accumulator system, for use in e.g. hybrid vehicle, has cooling passage with fluid, where fluid is displaced by pump in flow, and reversal unit reversing flow direction into cooling passage
US20120088130A1 (en) * 2010-10-12 2012-04-12 Gm Global Technology Operations, Inc. Method for air cooling of an electric vehicle traction battery with flow shifting
JP2013120826A (en) * 2011-12-07 2013-06-17 Ud Trucks Corp Temperature adjusting device for power storage module
EP2605328A2 (en) * 2010-08-09 2013-06-19 LG Chem, Ltd. Battery pack of novel structure
US20140102688A1 (en) * 2011-04-18 2014-04-17 Volker Doege Method and device for homogenizing the temperature distribution of bodies which have fluidic temperature control

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Publication number Priority date Publication date Assignee Title
US20040137313A1 (en) * 2003-01-09 2004-07-15 Ford Motor Company Battery system for automotive vehicle
JP2007179944A (en) * 2005-12-28 2007-07-12 Toyota Motor Corp Cooling structure of electricity storage device
DE102010009847A1 (en) * 2010-03-02 2011-09-08 Volkswagen Ag Accumulator system i.e. high volt accumulator system, for use in e.g. hybrid vehicle, has cooling passage with fluid, where fluid is displaced by pump in flow, and reversal unit reversing flow direction into cooling passage
EP2605328A2 (en) * 2010-08-09 2013-06-19 LG Chem, Ltd. Battery pack of novel structure
US20120088130A1 (en) * 2010-10-12 2012-04-12 Gm Global Technology Operations, Inc. Method for air cooling of an electric vehicle traction battery with flow shifting
US20140102688A1 (en) * 2011-04-18 2014-04-17 Volker Doege Method and device for homogenizing the temperature distribution of bodies which have fluidic temperature control
JP2013120826A (en) * 2011-12-07 2013-06-17 Ud Trucks Corp Temperature adjusting device for power storage module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11552347B2 (en) 2019-12-11 2023-01-10 Ford Global Technologies, Llc Bi-directional switchable cooling flow for traction battery

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CN205069808U (en) 2016-03-02
GB201509741D0 (en) 2015-07-22

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