WO2009125544A1 - 密閉式角形電池およびこれを用いた電池モジュール - Google Patents
密閉式角形電池およびこれを用いた電池モジュール Download PDFInfo
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- WO2009125544A1 WO2009125544A1 PCT/JP2009/001254 JP2009001254W WO2009125544A1 WO 2009125544 A1 WO2009125544 A1 WO 2009125544A1 JP 2009001254 W JP2009001254 W JP 2009001254W WO 2009125544 A1 WO2009125544 A1 WO 2009125544A1
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- Prior art keywords
- battery
- battery stack
- lid member
- plate
- stacking direction
- Prior art date
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- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 6
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- 239000003990 capacitor Substances 0.000 description 2
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- 230000007797 corrosion Effects 0.000 description 2
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- 239000001257 hydrogen Substances 0.000 description 2
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- 230000035699 permeability Effects 0.000 description 2
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910000652 nickel hydride Inorganic materials 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
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Images
Classifications
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- H01M50/567—Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
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- 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
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- 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
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Definitions
- the present invention relates to a sealed prismatic battery having a square structure and excellent pressure resistance against the internal pressure of the battery, and a battery module using a plurality of such batteries.
- a cylindrical shape has generally been adopted as the shape of a sealed battery.
- a simple structure in which a positive electrode plate and a negative electrode plate are wound into a cylindrical shape via a separator can be used as an electrode body, and at the same time, the pressure resistance against the internal pressure of the battery is excellent. There is an advantage.
- an electrode body having a laminated structure generally tends to expand in the stacking direction, and the battery expands due to the expansion of the electrode body.
- the battery expands due to the expansion of the electrode body.
- the battery easily expands even when the internal pressure increases. In order to suppress this, it is generally necessary to increase the thickness of the electrode member housing member. In this case, the volume and weight of the battery increase.
- a battery is often additionally mounted on a conventional mechanism, and the installation space of the battery is limited. Further, from the viewpoint of vehicle drive energy efficiency, the on-board battery is required to be as light as possible.
- the structure is simple.
- the pressure resistance of the battery can be improved.
- the battery shape is not a cylinder but a square, the volume efficiency is increased and the thickness of the first and second lid members can be reduced to reduce the weight and volume of the battery. This is particularly significant for the large batteries used.
- the electrode body has a structure in which a positive electrode plate forming the positive electrode and a negative electrode plate forming the negative electrode are alternately laminated in a predetermined direction with a separator therebetween.
- each of the first lid member and the second lid member has a set of the side portions facing each other in the stacking direction of the electrode bodies.
- the electrode body in this case may have a laminated structure in which the positive electrode plate that forms the positive electrode and the negative electrode plate that forms the negative electrode are alternately stacked via a pleated or bag-like separator. .
- the first lid member has a main body portion covering one opening of the frame-shaped member, and an edge portion integral with the main body portion. 4 side portions formed by being bent substantially along four sides, the second lid member covering the other opening of the frame-shaped member, and an edge portion integral with the body portion It is more preferable to have four side parts formed by bending so as to be substantially along the four sides of the rectangular frame-shaped member. Since each of the first lid member and the second lid member has four side portions corresponding to all four sides of the frame-shaped member, the expansion of the battery is more reliably suppressed.
- the frame-shaped member is formed of an insulating material
- the first lid member is a positive-side terminal connected to the positive electrode
- the second lid member is connected to the negative electrode
- the negative electrode side terminal can be made.
- the batteries can be connected in series by simply stacking the batteries, when using a plurality of the rectangular batteries as a battery module, the structure of the battery module can be simplified to facilitate the assembling work.
- the first and second lid members are formed of a nickel-plated steel material.
- nickel plating By applying nickel plating to the steel material, the contact resistance between the unit cells can be reduced, and the corrosion resistance is improved.
- the battery module according to the present invention uses the above-described sealed rectangular battery as a unit battery, and a plurality of unit batteries are arranged in a direction in which one of the first lid members and the other second lid member of the adjacent unit batteries face each other.
- a pair of side reinforcing members each extending along both side surfaces in the stacking direction of the battery stack, and the one set of side reinforcing members.
- a plate-like compression member fixed to the front end portion and the rear end portion in the stacking direction of the battery stack, respectively covering the front and rear portions of the battery stack, and supported by the front and rear compression members, And a fastening member for fastening the battery stack from the front and rear in the stacking direction.
- the pressure in the stacking direction of the battery stack can be secured by a side reinforcing member disposed on the side of the battery stack, for example, a side plate that covers the side of the battery stack.
- a side reinforcing member disposed on the side of the battery stack, for example, a side plate that covers the side of the battery stack.
- the side reinforcing member is a plate-like side plate that covers the side surface of the battery stack, and both end portions of the side plate in the vertical direction perpendicular to the stacking direction are bent toward the battery stack. Is preferred. If the side reinforcing member has such a structure, the mechanical strength of the side plate is increased by the folded both ends, so it is possible to stack and install a plurality of battery modules without adding a reinforcing member, Installation on a vehicle or the like becomes easy. Moreover, the expansion
- the screw member of the battery module according to the present invention may be a screw member that is screwed into a screw hole formed in the compression member. Further, in this case, the pressure applied in the stacking direction of the battery stack can be adjusted depending on the tightening degree of the screw member. With this configuration, the battery module can be easily assembled. In addition, the pressure in the stacking direction, which greatly affects the performance of the battery module, can be adjusted easily and accurately after the battery module is assembled by tightening the screw members, improving the accuracy of battery module quality control. To do.
- first current collecting member that is pressed against the first lid member that is one end portion of the battery stack by the clamping member
- a second current collector that is pressed against the second lid member that is the other end portion by the clamping member.
- an electric member Furthermore, each said current collection member is arrange
- the battery module according to the present invention preferably includes a casing made of an insulating material that covers a module main body including the battery stack and a conductive member attached to the battery stack. With this configuration, the module body can be electrically protected from the outside with a simple structure.
- FIG. 2 is a cross-sectional view of a sealed prismatic battery used in the battery module of FIG. 1.
- FIG. 3 is a perspective view showing a lid member and a frame-shaped member of the sealed rectangular battery in FIG. 2.
- FIG. 3 is a schematic diagram illustrating an example of a laminated structure of the electrode body of FIG.
- FIG. 2 shows a structure using a pleated separator
- (b) shows a structure using a bag-like separator
- (c) shows a pleated separator.
- a bag-like separator are used in combination.
- (A) is a figure which shows typically the battery module comprised by the sealed square battery provided with the voltage monitoring terminal which concerns on one Embodiment of this invention
- (b) is the voltage monitoring in the unit battery of (a).
- FIG. 3 is a cross-sectional view schematically showing a force applied to the sealed rectangular battery in FIG. 2. It is a perspective view which shows the inside of the casing of the battery module of FIG.
- FIG. 3 is a cross-sectional view schematically showing a force applied to the sealed rectangular battery in FIG. 2. It is a perspective view which shows the inside of the casing of the battery module of FIG.
- FIG. 8 is a correlation diagram showing the relationship between the tightening force and the distortion of the side plate in the module main body of FIG. 7.
- FIG. 8 is a cross-sectional view taken along line IX-IX in FIG.
- FIG. 10 is a sectional view taken along line XI-XI in FIG. 9.
- It is a top view which shows the structure of the pressure adjustment mechanism used for the battery module which concerns on one Embodiment of this invention.
- It is a perspective view which shows the cooling structure of the battery module which concerns on one Embodiment of this invention.
- FIG. 1 is a partially broken side view showing the structure of a battery module B according to an embodiment of the present invention.
- the battery module B is mounted on a train, for example, and is a battery in which a plurality of unit batteries C (30 in this embodiment) are stacked in the thickness direction of the unit battery C, which are sealed rectangular batteries.
- the laminate 1 and the side plate 3, the compression plate 5 and the fastening bolt 7 for fastening and fixing the battery laminate 1 in the stacking direction X are provided as main components, and these main components are made of an insulating material. It is covered with the casing 9 which consists of.
- the structure of the battery module B will be described in detail later.
- FIG. 2 is a cross-sectional view showing the structure of the unit battery C of FIG.
- the unit battery C includes a separator 11, an electrode body 15 including a positive electrode plate 12 constituting a positive electrode and a negative electrode plate 13 constituting a negative electrode, and a rectangular frame-shaped member 17 forming a space for accommodating the electrode body 15 together with an electrolytic solution, A first lid member 19 and a second lid member 21 are provided. That is, a cell case 22 that accommodates the electrode body 15 together with the electrolytic solution is formed by the frame-shaped member 17, the first lid member 19, and the second lid member 21.
- the unit battery C in this embodiment is nickel-hydrogen that can be repeatedly charged and discharged using nickel hydroxide as a main positive electrode active material, a hydrogen storage alloy as a main negative electrode active material, and an alkaline aqueous solution as an electrolyte. It is configured as a secondary battery.
- the first lid member 19 has a flat plate-shaped main body portion 19 a that covers one opening 17 a of the frame-shaped member 17, and is integrally formed on each of the four sides of the main body portion 19 a. In the formed edge part, it has the side part 19b which protruded so that it might substantially follow each four sides 17b of the frame-shaped member 17, for example, was bent, and covered a part of outer peripheral surface of the frame-shaped member 17. .
- the second lid member 21 has a main body portion 21 a and a side portion 21 b and covers the other opening 17 c of the frame-shaped member 17.
- the side portions 19b and 21b are not joined to each other, but may be joined by welding or the like. Further, the side portion 19b is not limited to the bending process, and may be formed separately from the main body portion 19a and welded to the main body portion 19a, for example.
- the electrode body 15 has a laminated structure in which the positive electrode plate 12 and the negative electrode plate 13 are alternately laminated in a predetermined direction with the separator 11 therebetween. More specifically, as schematically shown in FIG. 4A, a pleated structure in which the positive electrode plate 12 and the negative electrode plate 13 are alternately stacked via the separator 11A folded in a pleat shape is opposed. Have. In this embodiment, the electrode body 15 is laminated
- the electrode body 15 may have a laminated structure other than the pleated structure.
- the positive electrode plates 12 and the negative electrode plates 13 respectively accommodated in a plurality of bag-like separators 11B formed separately may be alternately stacked to face each other.
- the positive electrode plate 12 and the negative electrode plate 13 respectively accommodated in separate bag-like separators 11B are laminated so as to face each other via a pleated separator 11A. May be.
- the first and second lid members 19 and 21 are formed so as to have four side portions 19b and 21b corresponding to the four sides 17b of the frame-shaped member 17, respectively.
- the frame-shaped member 17 may be formed to have one set (two) side portions 19b and 21b corresponding to only one set of sides 17b and 17b facing each other. In that case, it is preferable to set the pair of side portions 19 b and 21 b so as to face each other in the stacking direction Y of the electrode body 15.
- the 1st cover member 19 and the 2nd cover member 21 are formed with the steel plate which gave nickel plating, and connect the 1st and 2nd cover members 19 and 21 to the positive electrode and the negative electrode, respectively. is doing. That is, the first and second lid members 19 and 21 also serve as the positive electrode side terminal and the negative electrode side terminal of the unit battery C, respectively.
- the raw material which forms the 1st cover member 19 and the 2nd cover member 21 can be suitably selected in consideration of an electrochemical characteristic, mechanical strength, corrosion resistance, etc. not only with a nickel plating steel material. Different materials may be used for the first lid member and the second lid member 21.
- the frame-shaped member 17 is formed of an insulating material in order to insulate the first lid member 19 and the second lid member 21 from each other.
- a modified polyphenylene ether (PPE) resin is used as an insulating material for the frame member 17, but various materials can be selected from the viewpoint of mechanical strength, heat resistance, and electrolytic solution resistance.
- the unit battery C includes a gas discharge port 23 for discharging the internal gas of the unit battery C on one side 17b on the upper side of the frame-shaped member 17, as shown in FIG.
- the gas discharge port 23 has a bifurcated discharge portion 23a that protrudes toward the center of the frame-shaped member 17 substantially in parallel with the side 17b where the gas discharge port 23 is provided.
- a part of the pressure adjustment mechanism 70 of the battery module B is configured.
- the unit battery C is preferably provided with a voltage monitoring terminal for monitoring the voltage of the unit battery C.
- a voltage monitoring terminal for monitoring the voltage of the unit battery C.
- one voltage monitoring terminal may be provided for each of the pair, that is, the positive electrode side and the negative electrode side, as shown in FIG. 5A, the positive electrode side and the negative electrode of the adjacent unit cell C in the battery module B It is preferable to share one terminal with the side.
- a round terminal 25 attached to one end of the lead wire 24 can be used (only the first lid member 19 side is shown as a representative).
- the round terminal 25 is inserted into the oval terminal mounting hole 28 formed in the side portion 19b on the upper surface of the first lid member 19 by inserting the terminal bolt 27 inserted through the center hole thereof into the frame-shaped member 17.
- a terminal mounting screw hole 29 formed on one side 17b the unit battery C is mounted in a state of being in contact with the first lid member 19 which is a positive terminal.
- the lid portion in order to suppress expansion due to the internal pressure of the battery, it has been conventionally necessary to increase the thickness of the lid member, but by providing side portions 19b and 21b formed by bending the edge portion, the lid portion The thickness and weight of the unit battery C can be reduced while improving the pressure resistance of the unit battery C.
- the unit battery C of this embodiment is provided with a voltage monitoring terminal for monitoring the battery voltage, as shown in FIG.
- a voltage monitoring terminal for monitoring the battery voltage
- this voltage monitoring terminal can also be used as a charge / discharge monitoring or control terminal, a system for minimizing performance variations between unit cells C that occur during repeated charging / discharging of the battery module B.
- the battery module B which greatly contributes to improving the performance of the battery module B.
- FIG. 7 is a perspective view showing a partially broken main body 47 of the battery module B housed in the casing 9 of FIG.
- the positive electrode side (front side in FIG. 7) of the battery stack 1 is referred to as the front side
- the negative electrode side (back side in FIG. 7) is referred to as the rear side.
- Side plates 3 formed as a pair of plate-like members extending along the stacking direction X are disposed on both side surfaces of the battery stack 1 in the stacking direction X so as to cover both sides of the battery stack 1. Yes.
- the side plates 3 and 3 have shallow U-shaped cross-sections in which the end portions 3a and 3b in the vertical direction orthogonal to the stacking direction X are bent substantially at right angles to the battery stack 1 side.
- the strain ⁇ in the region R2 clamping force F exceeds a predetermined value F 1, in addition to the compression of the electrode body 15, because due to the deformation of Wakugata member 17, a frame-shaped made of insulating material by member 17 (FIG. 2) is plastically deformed, there is a case where looseness occurs after the tightening force F reaches F 2 is once target value.
- FIG. 9 is a sectional view taken along line IX-IX in FIG.
- a first current collecting plate 35 serving as a positive current collecting member is provided.
- an insulating plate 37 and an insulating plate protection plate 39 are arranged in this order on the front side of the first current collecting plate 35 in this order.
- a screw member consisting only of the shaft portion having no head for example, a set screw 7A shown in FIG. 10A
- the top surfaces 7Aa and 7Ba are set so as not to protrude from the surface of the compression plate 5, and the dimension in the stacking direction of the battery module B can be reduced.
- a member that is supported by the front and rear compression plates 5 and fastens the battery stack 1 in the stacking direction X is not limited to a screw member such as the tightening bolt 7.
- an elastic member such as a spring may be interposed between the compression plate 5 and the insulating plate protection plate 39.
- the casing 9 mechanically and thermally connects the battery stack 1 and a module main body 47 made of a conductive member such as the side plate 3 and the compression plate 5 attached around the battery stack 1 from the outside of the battery module B. And a member for electrical protection.
- the material forming the casing 9 is preferably formed of an insulating material having excellent mechanical strength, heat resistance, and electrolyte resistance.
- a modified polyphenylene ether (PPE) resin is used. Yes.
- the gas discharge port 23, the tube 71 that is a flexible communication member, the pressure gauge P, and the pressure adjustment valve 73 constitute a pressure adjustment mechanism 70 of the battery module B.
- the pressure adjusting valve 73 for example, a generally used arbitrary mechanism can be used in addition to a combination of a poppet valve and a spring.
- the pressure regulating valve operates as a safety valve. Note that the pressure gauge P may be omitted, and the pressure adjustment mechanism 70 may be omitted when the internal pressure of the battery stack 1 is unlikely to reach a predetermined value.
- the air A introduced into the inflow passage 91 from the front and rear openings of the bottom 83b by the exhaust pressure of each exhaust fan 95 passes through the outflow passage 93 of the upper portion 83a and is exhausted to the outside from the front and rear exhaust fans 95.
- 9 enters the ventilation hole 31 a of the heat radiating plate 31, and cools the unit battery C through the heat radiating plate 31.
- an intake fan (not shown) for introducing air into the casing 9 from the outside may be provided on the front end wall and the rear end wall of the bottom 83b.
- the pressure in the stacking direction X is applied to the battery stack 1 by the fastening bolts 7 supported by the compression plates 5 fixed to the side plates 3. That is, the pressure in the stacking direction X of the battery stack 1 is secured by the side plate 3 that covers the side of the battery stack 1 and mechanically protects the battery stack 1. Accordingly, it is not necessary to provide a member such as a bolt that bears the pressure in the stacking direction X of the battery stack separately from the member that protects the side surface of the battery stack 1, so that the battery module B is reduced in size and weight. .
- the upper surface board 33 and the lower surface board 34 which respectively cover the upper part and the lower part of the side plate 3 are connected only to the side plate 3 as described above, and prevent the side plate 3 from bulging.
- the side plates 3 constitute the battery stack 1 because the end portions 3a and 3b in the vertical direction orthogonal to the stacking direction X are bent substantially at right angles to the battery stack 1 side.
- the bulge of each unit battery C in the side surface direction can be suppressed.
- the vertical expansion of the battery stack 1 acts as a tensile force on the side plate 3 via the bent end portions 3a and 3b of the side plate 3, so that the expansion in the side direction is effective. Is suppressed.
- the upper and lower plates 33 and 34 having bent ends effectively suppress the vertical expansion of the battery stack 1.
- the member that is supported by the compression member and fastens the battery stack 1 in the stacking direction X is formed as the tightening bolt 7 that is screwed into the bolt hole that penetrates the compression plate 5, the assembly work of the battery module B is easy. Furthermore, after the battery module B is assembled, the pressure applied in the stacking direction X of the battery stack 1 can be accurately adjusted by a simple operation of adjusting the tightening degree of the tightening bolt 7. Since the value of the pressure applied in the stacking direction X of the battery stack 1 is an important factor affecting the performance of each unit battery C and the performance of the battery module B, it can be easily and accurately adjusted. If possible, the quality of the battery module B can be managed with high accuracy.
- a module main body 47 composed of conductive members such as the battery stack 1, the side plate 3, the compression plate 5, and the tightening bolt 7 is provided by a box-shaped casing 9 made of an insulating material. Since it covers, the module main body 47 can be electrically protected from the outside with a simple structure.
- the casing 9 is attached to the main body via the second casing mounting bolt made of an insulating material by using the compression plate 5 and the first casing mounting bolt for applying pressure to the battery stack 1 in the stacking direction X. Therefore, the additional member for attaching the casing can be minimized, and the battery module B can be reduced in size and weight.
- the unit battery C is configured as a nickel hydride secondary battery.
- the present invention is not limited to this, and various primary batteries and secondary batteries such as a nickel cadmium battery and a lithium ion battery are used. It is possible to apply.
- the withstand voltage structure of the present invention can be applied to various types of capacitors including electric double layer capacitors.
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Abstract
Description
3 側面板(側面補強部材)
5 圧縮板
7 締付けボルト(締付部材)
11 セパレータ
12 正極板
13 負極板
15 電極体
17 枠形部材
19 第1蓋部材
19a 第1蓋部材の本体部
19b 第1蓋部材の側部
21 第2蓋部材
21a 第2蓋部材の本体部
21b 第2蓋部材の側部
B 電池モジュール
C 単位電池
X 電池モジュールにおける電池積層体の積層方向
Y 単位電池における電極体の積層方向
Claims (17)
- 正極および負極を含む電極体と、
前記電極体および電解液を収容する空間セルケースを形成する矩形の枠形部材、第1蓋部材および第2蓋部材とを備える密閉式角形電池であって、
前記第1蓋部材が、前記枠形部材の一方の開口を覆う本体部、およびこの本体部と一体の縁部をから、前記矩形の枠形部材の互いに対向する少なくとも1組の辺にほぼ沿うように折り曲げて形成した突設された側部を有しており、
前記第2蓋部材が、前記枠形部材の他方の開口を覆う本体部、およびこの本体部と一体の縁部をから、前記矩形の枠形部材の互いに対向する少なくとも1組の辺にほぼ沿うように折り曲げて形成した突設された側部を有している密閉式角形電池。 - 請求項1において、前記電極体が、前記正極を形成する正極板と前記負極を形成する負極板とが、セパレータを介して所定の方向に交互に積層されて対向する構造を有しており、前記第1蓋部材および第2蓋部材が、それぞれ、前記電極体の積層方向に対向する1組の前記側部を有している密閉式角形電池。
- 請求項2において、前記電極体が、前記正極を形成する正極板と前記負極を形成する負極板とがプリーツ状のセパレータを介して交互に積層されて対向する積層構造を有している密閉式角形電池。
- 請求項2において、前記電極体が、前記正極を形成する正極板と前記負極を形成する負極板とが袋状のセパレータを介して交互に積層されて対向する積層構造を有している密閉式角形電池。
- 請求項1において、
前記第1蓋部材が、前記枠形部材の一方の開口を覆う本体部、およびこの本体部と一体の縁部を、前記矩形の枠形部材の各4辺にほぼ沿うように折り曲げて形成した4つの側部を有しており、
前記第2蓋部材が、前記枠形部材の他方の開口を覆う本体部、およびこの本体部と一体の縁部を、前記矩形の枠形部材の各4辺にほぼ沿うように折り曲げて形成した4つの側部を有している密閉式角形電池。 - 請求項1において、前記枠形部材が絶縁素材で形成されており、前記第1蓋部材が前記正極に接続された正極側端子であり、前記第2蓋部材が前記負極に接続された負極側端子である密閉式角形電池。
- 請求項1において、前記第1および第2蓋部材が、ニッケルめっきを施した鋼材からなる密閉式角形電池。
- 請求項1において、電池電圧監視用の端子が設けられている密閉式角形電池。
- 請求項1に記載の密閉式角形電池を単位電池として、複数の単位電池を、隣接し合う単位電池の一方の前記第1蓋部材と他方の第2蓋部材とが対向する方向に積層してなる、ほぼ直方体形状の電池積層体を有する電池モジュールであって、
前記電池積層体の積層方向の両側面に沿ってそれぞれ延びる1組の側面補強部材と、前記1組の側面補強部材の、電池積層体の積層方向の前端部および後端部にそれぞれ固定されて、前記電池積層体の前部および後部をそれぞれ覆う板状の圧縮部材と、この前後の圧縮部材に支持されて、前記電池積層体を積層方向の前後からそれぞれ締め付ける締付け部材とを備えている電池モジュール。 - 請求項9において、前記側面補強部材が、前記電池積層体の側面を覆う板状の側面板であり、この側面板の、前記積層方向に直交する上下方向の両端部が、電池積層体側に折り曲げられている電池モジュール。
- 請求項9において、前記締付け部材が、前記圧縮部材に形成されたねじ孔に螺合するねじ部材である電池モジュール。
- 請求項11において、前記ねじ部材の締め付け度合いによって前記電池積層体の積層方向にかかる圧力を調整可能な電池モジュール。
- 請求項9において、さらに、前記締付け部材により前記電池積層体の一端部である第1蓋部材に圧接される第1集電部材と、前記締付け部材により他端部である第2蓋部材に圧接される第2集電部材とを備えている電池モジュール。
- 請求項13において、さらに、前記各集電部材が、前記締付け部材からの圧力を受けるように配置されている電池モジュール。
- 請求項9において、さらに、前記電池積層体とその周囲に取付けられた導電性の部材とを含むモジュール本体を覆う、絶縁素材からなるケーシングを備えている電池モジュール。
- 請求項15において、前記ケーシングが、前記圧縮部材を貫通して前記電池積層体を締め付ける金属製のねじ部材である第1ケーシング取付部材と、この第1ケーシング取付部材に螺合し、当該ケーシングを貫通する、絶縁素材からなるねじ部材である第2ケーシング取付部材とを介して前記モジュール本体に取付けられている電池モジュール。
- 請求項9において、前記電池積層体の内部圧力が一定値まで上昇した場合に電池積層体内部のガスを外部へ排出する圧力調整機構が設けられている電池モジュール。
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KR1020127028291A KR101329636B1 (ko) | 2008-04-11 | 2009-03-19 | 밀폐식 각형 전지 및 이것을 사용한 전지 모듈 |
JP2010507133A JPWO2009125544A1 (ja) | 2008-04-11 | 2009-03-19 | 密閉式角形電池およびこれを用いた電池モジュール |
CA 2726864 CA2726864C (en) | 2008-04-11 | 2009-03-19 | Sealed rectangular battery and battery module using same |
CN200980112693.0A CN101999182B (zh) | 2008-04-11 | 2009-03-19 | 密闭式长方体电池及采用其的电池模块 |
EP09730781.3A EP2273583B1 (en) | 2008-04-11 | 2009-03-19 | Sealed rectangular battery and battery module using same |
KR1020107022751A KR101274518B1 (ko) | 2008-04-11 | 2009-03-19 | 밀폐식 각형 전지를 사용한 전지 모듈 |
US12/898,511 US8158278B2 (en) | 2008-04-11 | 2010-10-05 | Sealed battery having rectangular frame member and battery module using same |
US13/427,645 US8574750B2 (en) | 2008-04-11 | 2012-03-22 | Sealed battery to withstand internal pressures and battery module using same |
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JP2011150913A (ja) * | 2010-01-22 | 2011-08-04 | Kawasaki Heavy Ind Ltd | 積層型電池 |
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JP2013114832A (ja) * | 2011-11-28 | 2013-06-10 | Kawasaki Heavy Ind Ltd | 積層型電池モジュールおよびこれに用いられる電池 |
WO2013094168A1 (ja) * | 2011-12-21 | 2013-06-27 | 川崎重工業株式会社 | 二次電池 |
JP2013171794A (ja) * | 2012-02-22 | 2013-09-02 | Denso Corp | 電池モジュールおよびそのケース |
JP2015215988A (ja) * | 2014-05-09 | 2015-12-03 | 川崎重工業株式会社 | 角形電池 |
JP2017111914A (ja) * | 2015-12-15 | 2017-06-22 | 株式会社豊田自動織機 | 電池パック |
JP2018106836A (ja) * | 2016-12-22 | 2018-07-05 | 川崎重工業株式会社 | 電池モジュール |
WO2020174616A1 (ja) * | 2019-02-27 | 2020-09-03 | 本田技研工業株式会社 | エンドプレートの固定構造及びバッテリ装置 |
JPWO2020174616A1 (ja) * | 2019-02-27 | 2021-12-16 | 本田技研工業株式会社 | エンドプレートの固定構造及びバッテリ装置 |
JP7133702B2 (ja) | 2019-02-27 | 2022-09-08 | 本田技研工業株式会社 | エンドプレートの固定構造及びバッテリ装置 |
JP2023094260A (ja) * | 2021-12-23 | 2023-07-05 | トヨタ自動車株式会社 | 蓄電デバイス |
JP7616046B2 (ja) | 2021-12-23 | 2025-01-17 | トヨタ自動車株式会社 | 蓄電デバイス |
Also Published As
Publication number | Publication date |
---|---|
CN101999182B (zh) | 2014-07-09 |
EP2273583B1 (en) | 2014-07-23 |
JP2014063750A (ja) | 2014-04-10 |
US8158278B2 (en) | 2012-04-17 |
US20120177958A1 (en) | 2012-07-12 |
TW201001787A (en) | 2010-01-01 |
CA2726864C (en) | 2013-09-10 |
TWI380495B (en) | 2012-12-21 |
JP5764641B2 (ja) | 2015-08-19 |
KR20120135431A (ko) | 2012-12-13 |
EP2273583A4 (en) | 2012-09-26 |
JPWO2009125544A1 (ja) | 2011-07-28 |
CN101999182A (zh) | 2011-03-30 |
KR20100123906A (ko) | 2010-11-25 |
US8574750B2 (en) | 2013-11-05 |
KR101274518B1 (ko) | 2013-06-13 |
EP2273583A1 (en) | 2011-01-12 |
CA2726864A1 (en) | 2009-10-15 |
US20110027630A1 (en) | 2011-02-03 |
KR101329636B1 (ko) | 2013-11-14 |
RU2010142991A (ru) | 2012-05-20 |
RU2462794C2 (ru) | 2012-09-27 |
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