WO2000014822A1 - Method and apparatus for temperature control of integrated battery - Google Patents
Method and apparatus for temperature control of integrated battery Download PDFInfo
- Publication number
- WO2000014822A1 WO2000014822A1 PCT/JP1999/004813 JP9904813W WO0014822A1 WO 2000014822 A1 WO2000014822 A1 WO 2000014822A1 JP 9904813 W JP9904813 W JP 9904813W WO 0014822 A1 WO0014822 A1 WO 0014822A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery
- battery module
- temperature
- integrated
- film cylinder
- Prior art date
Links
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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/61—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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/651—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
-
- 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
- H01M10/651—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
- H01M10/652—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations characterised by gradients
-
- 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
-
- 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
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/543—Terminals
- H01M50/552—Terminals characterised by their shape
- H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
- H01M50/56—Cup shaped terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/42—Grouping of primary cells into batteries
-
- 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
Definitions
- the present invention relates to an integrated battery temperature control method and apparatus.
- the present invention relates to an integrated battery for equalizing the temperature of each battery module when a plurality of battery modules formed by connecting cells in series are integrated to form an integrated battery having a required output power.
- the present invention relates to a temperature management method and a device therefor. Background art
- the electromotive force of a unit cell is only a small voltage of about 1 V to 4 V, so when large output power is required, the cells formed by the unit cells are connected in series to form a battery module.
- the battery module is connected in series, and a desired output voltage is obtained. Therefore, when constructing a battery power supply with a large output power, a plurality of battery modules are arranged vertically and horizontally in a holder case to constitute an integrated battery.
- Such a battery power supply configured by integrating a large number of cells performs charge / discharge control using a secondary battery and is maintained so that required power can always be obtained.
- the temperature of a secondary battery rises due to the heat generated by charging and discharging. However, when a large number of cells are integrated, the calorific value is large and cooling is necessary to suppress the temperature rise. Conversely, when used in cold climates, if the battery temperature drops below the appropriate temperature, battery performance will drop, and it may be necessary to heat the battery. In addition, since the temperature of a battery changes in battery characteristics, it is necessary to maintain the temperature of all integrated cells at a uniform temperature.
- the integrated battery 30 is A configuration is generally adopted in which each battery module 9 is cooled by blowing air from below to force air to flow between the battery modules 9.
- the temperature T a of the air, Figure 8 As shown by the broken line in B, as the battery passes between the battery modules 9 and goes upward, the heat of each battery module 9 is taken away and the temperature rises. Therefore, the lowermost battery module 9 that exchanges heat with low-temperature air is cooled efficiently, but the higher the battery module 9 located in the upper row, the more the air exchanges heat with the lower battery module 9 and the temperature increases. So it is difficult to cool. As a result, the battery temperature T B is as shown by a two-dot chain line in FIG. 8 B. Results in a large difference between the temperature of the temperature T B 1 and other battery modules 9 of the lowermost battery modules 9 occurs, the cell module Ichiru 9 will not be cooling to uniform temperature.
- An object of the present invention is to provide an integrated battery temperature management method and device capable of maintaining each battery module at a uniform temperature in an integrated battery in which a plurality of battery modules are integrated.
- a temperature management method comprises a plurality of battery modules formed by connecting unit cells in series and arranging them in parallel in a holder case to constitute an integrated battery.
- a temperature management method for an integrated battery that controls the temperature of each battery module by forcibly flowing a medium in the parallel direction of the battery modules in the holder case, the battery module located on the upstream side in the medium flowing direction may be controlled.
- the film tube is covered, and the distance between the film tube and the surface of the battery module is increased according to the heat exchange conditions. .
- the battery module located on the upstream side in the medium flow direction is covered with the film tube, so that the heat exchange efficiency is reduced. Furthermore, by setting the distance between the film cylinder and the surface of the battery module to be larger according to the heat exchange conditions, the larger the distance between the battery modules, the greater the heat exchange effect. The rate drops. Therefore, adjust the distance between the film cylinder and the surface of the battery module according to the temperature of the medium to cover the battery module located on the upstream side with the film cylinder. Thereby, the temperature of each battery module is equalized, and the battery characteristics that change with temperature are equalized, so that an integrated battery with good performance can be configured.
- the temperature management device is configured such that an integrated battery is configured by arranging a plurality of battery modules formed by connecting cells in series in a holder case, and forming the integrated battery in the holder case.
- a temperature management device for an integrated battery that cools each battery module by forcibly circulating a medium in the parallel direction of the battery modules, the space between the battery module located on the upstream side in the medium circulating direction and the surface of the battery module may be reduced.
- the film cylinder is covered so as to be adjustable, and the distance from the surface of the battery module is set to be larger according to the heat exchange condition, the closer to the position the battery module is.
- a spacer having a predetermined thickness is arranged on a part of the surface of the battery module, a film cylinder is arranged on the spacer, and the surface of the battery module is covered with the film cylinder.
- the film cylinder can be configured as a resin film formed in a cylindrical shape, and the heat exchange efficiency can be adjusted by changing the diameter of the film cylinder to change the thickness of the air layer.
- the film cylinder is formed by joining a cylindrical battery module with an overlapping portion formed by winding a resin film formed to have a width longer than the circumference that covers the surface of the cylindrical battery module at a predetermined distance and having a width larger than the circumference. It can be formed, and not only can cost be reduced compared to the case of manufacturing a tubular film cylinder, but also the space occupied by inventory and transportation can be reduced.
- the film cylinder covers the cylindrical battery module at a predetermined distance from the surface.
- the resin film formed to have a width longer than the circumference at the maximum interval is wound into a cylindrical shape with the diameter to be mounted on the battery module. It becomes possible to form film cylinders of a plurality of diameters.
- FIG. 1 is a perspective view illustrating a configuration of an assembled battery according to an embodiment of the present invention
- FIG. 2 is a cross-sectional view illustrating a cooling structure of the battery according to the first embodiment
- FIG. FIG. 4 is a side view showing a configuration
- FIG. 4 is a configuration diagram of an assembled battery according to the first embodiment and a graph showing equalization of the battery temperature
- FIG. 5 is a battery cooling system according to the second embodiment.
- FIG. 6 is a side view showing the mounting structure
- FIG. 6 shows a mounting structure of the film cylinder to the battery module
- FIG. 6A is a sectional view
- FIG. 6B is a side view
- FIG. 7B is a cross-sectional view showing a state in which the film cylinder is formed with a large diameter and FIG. 7C is a state in which the film cylinder is mounted with a small diameter, and FIG. FIG. 8B is a configuration diagram of a battery pack without a structure. It is. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows a configuration of an integrated battery according to an embodiment of the present invention, and shows an embodiment applied to a battery power source of a hybrid vehicle using both an electric motor and an internal combustion engine as driving sources.
- this integrated battery six unit cells 7 configured as nickel-metal hydride secondary batteries are connected in series to form a battery module 9, and this battery module 9 is placed in a holder 10 in three rows and seven columns. And each battery module 9 is connected in series.
- a holder case 10 accommodating a plurality of battery modules 9 in this manner is shown in FIG.
- the battery power supply device 1 is fixed in the outer case 4.
- the battery power supply device 1 blows air from the blower 5 to blow air (medium) from below into the holder case 10, thereby forcibly cooling each battery module 9.
- the battery module 9 on the downstream side becomes more downstream than the battery module 9a on the most upstream side in the air blowing direction, heat is exchanged with the battery module 9 on the upstream side, so that the air is cooled by the heated air.
- a temperature difference occurs between the temperature of the battery module 9a on the most upstream side.
- the battery characteristics such as battery capacity and charging efficiency change depending on the temperature
- the temperature of each cell 7 is equal. State is required.
- the battery module 9a on the most upstream side which first comes into contact with the air to be blown, has the highest cooling effect, so the temperature is lower than the other battery modules 9 and the battery temperature is not equalized. Become.
- the battery module 9a, 9a, 9a located on the most upstream side in the air blowing direction is covered with a film cylinder 2 formed of PET (polyethylene terephthalate) film, 9a does not directly contact the air to be blown, and an air layer is formed between the film and the film cylinder 2, so that the cooling effect of the blown air is reduced.
- the temperature difference between the battery module 9a on the upstream side and the other battery modules 9 is large as shown by the broken line in FIG. Become.
- the film cylinder 2 is put on the battery module 9a on the most upstream side, the temperature of the battery module 9a rises as shown by the solid line in FIG. The temperature rise of the other battery modules 9 is suppressed, and the temperature difference is reduced.
- the battery module 9 is configured by mechanically connecting six single cells 7 by spot welding via a connection ring 50 and electrically connecting them in series.
- the film cylinder 2 having the inside diameter of the connection ring 50 is placed on the battery module 9, as shown in the figure, the film cylinder 2 is at the portion of the connection ring 50 having the largest diameter. Supported between each cell 7 and the surface of the cell 7.
- the battery module 9 is covered with an interval of 5 mm.
- each battery module 9a on the most upstream side in the blowing direction is suppressed from being extremely lower than the temperature of the battery modules 9 located at other positions, but the temperature of all the battery modules 9 is suppressed. Is not equalized. Therefore, an embodiment in which each battery module 9 is configured to have a uniform temperature will be described below.
- the battery modules 9 are sequentially covered with film cylinders 2a to 2e from the upstream side in the blowing direction, and the diameter of each of the film cylinders 2a to 2e is set to be different.
- the battery module 9 on the upstream side is covered with the film cylinder 2 having a larger diameter. Since the air layer surrounding the battery module 9 becomes thicker as it is covered with the film cylinder 2 having a larger diameter, the cooling effect by the blown air decreases.
- the cooling efficiency is gradually improved from the upstream side to the downstream side, and the cooling effect decreases due to the temperature rise as the blast air goes to the downstream side.
- the temperatures of all the battery modules 9 reaching the side are substantially equal.
- connection rings 50 connecting the cells 7 are connected to each other.
- the spacer 3 is attached to the battery module 9 and the thickness of the spacer 3 is changed according to the diameter of the film cylinder 2 so that a predetermined distance is provided between the spacer 3 and the surface of the battery module 9. 2 can be covered.
- the film cylinder 2 needs to be prepared as film cylinders 2a to 2e having different diameters, and the occupied space in manufacturing, stocking, transportation, and the like is large.
- the management becomes complicated, which is not practical. Therefore, if the film cylinders 2a to 2e for each diameter size can be manufactured from a resin film of a common size, manufacturing cost and management labor can be reduced.
- a film 12 having a side length longer than the circumferential length of the film cylinder 2a having the maximum diameter is formed into a cylindrical shape by curling the film 12 into a large-diameter film cylinder.
- 2a As shown in Fig. 7A, when used as 2a, as shown in Fig. 7B, when it is put on the large diameter spacer 3a mounted on the battery module 9, it covers the battery module 9 with a predetermined diameter. At the same time, an overlapping portion is formed at the end side, so that the film cylinder 2a can be formed by joining at the overlapping portion.
- a small straight-through film cylinder 2 e as shown in FIG.
- the film 12 is prepared in a plurality of types such that one side thereof has a length obtained by adding a certain length of overlap to the circumferential length forming each of the film cylinders 2a to 2e. It may be formed in a different cylinder.
- the battery module 9 for each stage in the air blowing direction is configured to cover the film cylinder 2 at a predetermined interval, but depending on the temperature conditions in the parallel direction of each stage.
- the diameter of the film cylinder 2 can be changed so that the temperature of the battery module 9 can be adjusted to be uniform.
- a film cylinder is placed over a battery located on the upstream side in the medium circulating direction.
- the efficiency of heat exchange with the medium of the battery on the upstream side is reduced, and the temperature of the battery at the other position is suppressed from being lower than that of other batteries. can do.
- the battery by covering the battery with a film cylinder such that the distance between the battery and the battery located on the upstream side in the medium distribution direction is increased,
- the difference in heat exchange efficiency due to the difference in the thickness of the air layer formed between the film cylinder and the battery makes it possible to maintain the temperature of multiple batteries in a uniform state. It is useful as a method or a device for maintaining the performance of a battery pack in which the resulting batteries are integrated in a good state.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB998101508A CN1161858C (zh) | 1998-09-03 | 1999-09-03 | 集成电池的温度控制方法及装置 |
DE69942230T DE69942230D1 (de) | 1998-09-03 | 1999-09-03 | Verfahren und vorrichtung zur temperaturkontrolle integrierter batterien |
EP19990940671 EP1115172B1 (en) | 1998-09-03 | 1999-09-03 | Method and apparatus for temperature control of integrated battery |
US09/763,622 US6448741B1 (en) | 1998-09-03 | 1999-09-03 | Temperature control method and structure for a battery pack |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24933298A JP4231127B2 (ja) | 1998-09-03 | 1998-09-03 | 集積電池の温度管理方法及びその装置 |
JP10/249332 | 1998-09-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000014822A1 true WO2000014822A1 (en) | 2000-03-16 |
Family
ID=17191446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/004813 WO2000014822A1 (en) | 1998-09-03 | 1999-09-03 | Method and apparatus for temperature control of integrated battery |
Country Status (6)
Country | Link |
---|---|
US (1) | US6448741B1 (ja) |
EP (1) | EP1115172B1 (ja) |
JP (1) | JP4231127B2 (ja) |
CN (1) | CN1161858C (ja) |
DE (1) | DE69942230D1 (ja) |
WO (1) | WO2000014822A1 (ja) |
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US9627724B2 (en) | 2014-12-04 | 2017-04-18 | Lg Chem, Ltd. | Battery pack having a cooling plate assembly |
FR3050074B1 (fr) | 2016-04-07 | 2018-06-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Dispositif electrochimique, tel qu’une microbatterie, et son procede de realisation |
RU172277U1 (ru) * | 2016-12-27 | 2017-07-10 | Общество с ограниченной ответственностью "Амулет" | Модуль аккумуляторной электрической батареи |
DE102018110269A1 (de) * | 2018-04-27 | 2019-10-31 | Airbus Operations Gmbh | Batteriehaltevorrichtung sowie Flugzeug mit einer derartigen Batteriehaltevorrichtung |
CN110739502A (zh) * | 2019-09-08 | 2020-01-31 | 南京金龙新能源汽车研究院有限公司 | 一种薄壁腔液冷结构电池模块 |
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- 1998-09-03 JP JP24933298A patent/JP4231127B2/ja not_active Expired - Fee Related
-
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- 1999-09-03 US US09/763,622 patent/US6448741B1/en not_active Expired - Lifetime
- 1999-09-03 DE DE69942230T patent/DE69942230D1/de not_active Expired - Lifetime
- 1999-09-03 EP EP19990940671 patent/EP1115172B1/en not_active Expired - Lifetime
- 1999-09-03 WO PCT/JP1999/004813 patent/WO2000014822A1/ja active Application Filing
- 1999-09-03 CN CNB998101508A patent/CN1161858C/zh not_active Expired - Lifetime
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JPS59171476A (ja) * | 1982-12-24 | 1984-09-27 | ブラウン・ボバリ・ウント・シ−・アクチエンゲゼルシヤフト | 高温蓄電池 |
EP0576138A1 (en) * | 1992-06-15 | 1993-12-29 | Gnb Industrial Battery Company | Modular cabinet for large-sized sealed lead-acid cells |
JPH103950A (ja) * | 1996-06-12 | 1998-01-06 | Matsushita Electric Ind Co Ltd | 電源装置およびその放熱方法 |
JPH10106520A (ja) * | 1996-09-26 | 1998-04-24 | Matsushita Electric Ind Co Ltd | 蓄電池電源装置 |
JPH10106521A (ja) * | 1996-09-26 | 1998-04-24 | Matsushita Electric Ind Co Ltd | 蓄電池電源装置 |
JPH10255859A (ja) * | 1997-03-07 | 1998-09-25 | Toyota Motor Corp | 電池アセンブリ |
JPH10270095A (ja) * | 1997-03-24 | 1998-10-09 | Toyota Motor Corp | 電池電源の冷却装置 |
JPH10334953A (ja) * | 1997-03-24 | 1998-12-18 | Alcatel Alsthom Co General Electricite | 電気化学セルのバッテリの温度制御装置 |
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See also references of EP1115172A4 * |
Also Published As
Publication number | Publication date |
---|---|
CN1315062A (zh) | 2001-09-26 |
EP1115172B1 (en) | 2010-04-07 |
CN1161858C (zh) | 2004-08-11 |
JP2000082502A (ja) | 2000-03-21 |
EP1115172A4 (en) | 2004-09-01 |
EP1115172A1 (en) | 2001-07-11 |
JP4231127B2 (ja) | 2009-02-25 |
DE69942230D1 (de) | 2010-05-20 |
US6448741B1 (en) | 2002-09-10 |
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