CN102214806A - Battery module - Google Patents

Battery module Download PDF

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Publication number
CN102214806A
CN102214806A CN2011100860606A CN201110086060A CN102214806A CN 102214806 A CN102214806 A CN 102214806A CN 2011100860606 A CN2011100860606 A CN 2011100860606A CN 201110086060 A CN201110086060 A CN 201110086060A CN 102214806 A CN102214806 A CN 102214806A
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CN
China
Prior art keywords
electrode
insulator
insulation board
accommodation section
battery unit
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Granted
Application number
CN2011100860606A
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Chinese (zh)
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CN102214806B (en
Inventor
朴伸英
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Samsung SDI Co Ltd
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Samsung SDI Co Ltd
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Priority claimed from US12/916,339 external-priority patent/US20110250488A1/en
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Publication of CN102214806B publication Critical patent/CN102214806B/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

Battery modules have a plurality of electrode assemblies in which the electrode tabs of electrode assemblies are easily attached to the battery cases by a common insulator including receptacles for receiving the electrode assemblies. These configurations enable easy manufacture of medium- and large-sized battery modules with a plurality of electrode assemblies. In some embodiments, a battery module includes an insulator capable of mounting a plurality of electrode assemblies and receptacles in the insulator for receiving a portion of each electrode assembly.

Description

Battery unit
Technical field
The present invention relates to battery unit, more specifically, relate to the battery unit that comprises a plurality of electrode assemblies, wherein the electrode nipple of electrode assemblie can easily be attached to battery case, thereby makes medium size and large-sized battery module.
Background technology
Different with the primary cell that can not be repeated to charge, secondary cell can repeatedly be charged and be discharged.Low capacity secondary cell with a unit is used for small-sized, portable electronic equipment, for example mobile phone, notebook computer and camcorder.The high-capacity secondary battery that comprises connection a plurality of battery units in groups receives publicity, as the power supply that drives such as the motor of hybrid-power electric vehicle (hybrid electric car) etc.
The high-capacity secondary battery that connects to drive (for example, motor vehicle etc.) motor that is one another in series needs high power, and can be used as the battery module use.Therefore, high-capacity battery is studied energetically.
Yet when the module that comprises a plurality of baby batteries was used as high-capacity secondary battery, weight and cost increased.In addition, in high-capacity secondary battery, the capacity of per unit unit increases, the required cost of performance that this understands the stability of obvious damage battery and has increased access to par.
Summary of the invention
Embodiments of the invention comprise the secondary cell with a plurality of electrode assemblies, and wherein the electrode nipple of electrode assemblie easily soldered (perhaps attached with other method) is to battery case.This secondary cell comprises insulator, and this insulator has the accommodation section of a part that is used to hold each electrode assemblie.Such structure makes it possible to easily make medium size or large-sized battery module.
According to embodiments of the invention, secondary cell comprises the accommodation section that is used at the insulator of a plurality of electrode assemblies of battery case (for example jar) installation and is used to support the part of each electrode assemblie.
Electrode assemblie can be a jellyroll type electrode assemblie, and can be circular or flat cylindricality in shape.
In certain embodiments, the accommodation section is outstanding from the top of insulator, and can be roughly cup-shapedly, makes each accommodation section have the inner chamber that is used for the hold electrodes assembly.
In some embodiment that substitute, the accommodation section can be the depression in the upper surface of insulator.
When the accommodation section was outstanding from the top of insulator, the accommodation section can be shaped as the bottom of support electrode assembly.
Battery is included at least one insulator at the top or the place, bottom of electrode assemblie.Yet, according to some embodiment, battery be included in electrode assemblie top place first insulator and at second insulator at the place, bottom of electrode assemblie.At first insulator that comprises the place, upper and lower that is arranged in electrode assemblie and the embodiment of second insulator, each can be single body in first insulator and second insulator.
In addition, insulator can have the hole, and the electrode nipple of electrode assemblie passes this hole.
According to embodiments of the invention; use has the Promethean insulator of accommodation section; can be by the electrode nipple welding (perhaps attached with other method) of a plurality of electrode assemblies be easily made medium size or large-sized battery module to battery case (for example jar); protection has the battery unit of low mechanical strength thus, and prevents the distortion of electrode assemblie.
In addition, this Promethean insulator makes it possible to accurate keeper electrode assembly, the accuracy that improves battery component, the structural stability of simplifying battery component and improving battery.
In addition, total manufacturing cost can reduce.And when electrode assemblie broke, remaining electrode assemblie can not break (promptly having only an electrode assemblie to break), improved stability thus.
Description of drawings
Fig. 1 is the decomposition diagram of insulator and a plurality of electrode assemblies according to an embodiment of the invention;
Fig. 2 is the electrode assemblie of Fig. 1 and the perspective view of insulator, and wherein electrode assemblie is installed in the insulator;
Fig. 3 is the perspective view that is installed in a plurality of electrode assemblies in first insulator and second insulator according to another embodiment of the present invention;
Fig. 4 is the perspective view of secondary cell according to another embodiment of the present invention;
Fig. 5 A is the sectional view along the line A-A ' of Fig. 4 intercepting, illustrates being connected of electrode nipple and cover plate according to an embodiment of the invention;
Fig. 5 B is the sectional view along the line B-B ' of Fig. 4 intercepting, illustrates being connected of electrode nipple and battery case according to an embodiment of the invention;
Fig. 6 is the sectional view according to the secondary cell of further embodiment of this invention;
Fig. 7 is the perspective view that is installed in a plurality of electrode assemblies in the insulator according to further embodiment of this invention;
Fig. 8 is the perspective view that is installed in a plurality of electrode assemblies in the insulator according to further embodiment of this invention;
Fig. 9 is the decomposition diagram according to a plurality of electrode assemblies of further embodiment of this invention and first insulator and second insulator.
Embodiment
After this, secondary cell according to an embodiment of the invention will be described with reference to the drawings.
Fig. 1 is the decomposition diagram of insulator and a plurality of electrode assemblie (for example jellyroll type assembly) according to an embodiment of the invention.Fig. 2 is the electrode assemblie of Fig. 1 and the perspective view of insulator, and wherein electrode assemblie is installed in the accommodation section of insulator.With reference to figure 1 and Fig. 2, medium size or large scale secondary cell comprise insulator 20 according to an embodiment of the invention, can settle a plurality of electrode assemblies (for example circular jellyroll type assembly) 10 on this insulator 20.Insulator 20 comprises the accommodation section 21 that is used for each electrode assemblie, and the bottom of accommodation section support electrode assembly 10.In certain embodiments, accommodation section 21 also can have inner chamber from the top of insulator 20 is outstanding, and the bottom of electrode assemblie 10 is inserted in this inner chamber.In addition, accommodation section 21 makes that to separate at interval a plurality of electrode assemblies 10 can be to arrange and to fix at interval.Accommodation section 21 can be from the top of insulator the length of outstanding any appropriate, and outstanding length is not particularly limited, but can extend any length that is suitable for firmly fixing electrode assemblie 10.
Each electrode assemblie 10 has first electrode nipple 11 that extends from the top of assembly and second electrode nipple 12 that extends from the bottom of assembly.For convenience, first electrode nipple 11 that extends from top is known as positive contact 11, and second electrode nipple that extends from the bottom is known as negative contact 12.
Be used for that negative contact 12 is exposed to outside hole 22 and be formed on insulator and corresponding position, the position of accommodation section 21.When electrode assemblie 10 was inserted accommodation sections 21, negative contact 12 was passed the hole 22 of insulator 20 and is exposed to the outside.A plurality of negative contacts 12 are exposed by hole 22 and are arranged (aligned), and a plurality of then negative contacts 12 can easily be soldered to battery case (for example jar).
The insulator 20 that comprises accommodation section 21 is inserted in the battery case 32, and wherein electrode assemblie 10 is installed in this accommodation section 21, as shown in Figure 4.By the insulator assembly is inserted into battery case, negative contact 12 can be welded (perhaps attached in other mode) to battery case, shown in Fig. 4 and Fig. 5 B.Positive contact 11 is described and negative contact 12 is connected respectively to cover plate 31 and battery case 32 below with reference to Fig. 4 to Fig. 5 B.And, though Fig. 4 illustrates the first insulator 20a and the second insulator 20b on the upper and lower of electrode assemblie, battery can comprise the single insulator 20 of place, top that only is positioned at a plurality of electrode assemblies 10 or the place, bottom that only is positioned at a plurality of electrode assemblies 10 according to an embodiment of the invention.
To the quantity of the accommodation section of insulator 20 without limits, and insulator 20 can hold any amount of electrode assemblie, for example two or more electrode assemblies 10.In addition, insulator 20 can be made by any suitable material, for example polypropylene, polyethylene, polyimides etc.
Electrode assemblie 10 comprises having the positive plate that is coated in the lip-deep anode active material layers of anode collector, have the minus plate and the dividing plate between positive plate and minus plate that are coated in the lip-deep cathode active material bed of material of cathode collector.Electrode assemblie 10 is reeled makes dividing plate with positive plate and minus plate electric insulation.
Positive plate comprises the metal sheet with satisfactory electrical conductivity.For example, positive plate can comprise the anode collector of being made by aluminium (Al) paper tinsel, and anode active material layers can be coated on the both sides of paper tinsel.Each end of positive plate comprises the uncoated district of anode, and in the uncoated district of this anode, the anode active material layers uncoated is on current-collector.One termination in the uncoated district of anode is incorporated into positive contact 11, and positive contact 11 is made by aluminium (Al) material usually and give prominence to a length from the top of electrode assemblie 10.
Minus plate comprises the cathode collector of being made by the metal sheet of for example copper (Cu) paper tinsel or nickel (Ni) paper tinsel, and the cathode active material bed of material is coated on the both sides of paper tinsel.Each end of minus plate comprises the uncoated district of negative electrode, and in the uncoated district of this negative electrode, cathode active material bed of material uncoated is on current-collector.One termination in the uncoated district of negative electrode is incorporated into negative contact 12, and negative contact 12 is made by nickel (Ni) material usually and give prominence to a length from the bottom of electrode assemblie 10.
Fig. 3 is the perspective view that is installed in a plurality of electrode assemblies in first insulator and second insulator according to another embodiment of the present invention.Fig. 4 is the perspective view of secondary cell according to a second embodiment of the present invention.With reference to figure 3 and Fig. 4, in certain embodiments, insulator 20 can comprise the first insulator 20a on the top that is positioned at a plurality of electrode assemblies 10 and be positioned at the second insulator 20b on the bottom of a plurality of electrode assemblies 10.The negative contact 12 that such structure makes it possible to easy arrangement (alignment) and locatees the positive contact 11 outstanding from the top of electrode assemblie 10 and give prominence to from the bottom of electrode assemblie 10.
As shown in Figure 3 and Figure 4, the first insulator 20a comprises the first accommodation section 21a, and insert among the 21a of this first accommodation section on the top of a plurality of electrode assemblies 10.Equally, the second insulator 20b comprises the second accommodation section 21b, and insert among the 21b of this second accommodation section the bottom of a plurality of electrode assemblies 10.The first accommodation section 21a and the second accommodation section 21b are outstanding from the first insulator 20a and the second insulator 20b respectively, and each accommodation section can have inner chamber, and its corresponding electrode assembly can insert in this inner chamber.The first accommodation section 21a and the second accommodation section 21b can distinguish location symmetrically.That is, the first accommodation section 21a can be corresponding to the position of the second accommodation section 21b on the second insulator 20b, as shown in Figure 3 and Figure 4 in the position on the first insulator 20a.
The top of the first accommodation section 21a hold electrodes assembly 10, and each accommodation section 21a comprises the first hole 22a that is used for positive contact 11 is exposed to the outside.The bottom of the second accommodation section 21b hold electrodes assembly 10, and each accommodation section 21b comprises the second hole 22b that is used for negative contact 12 is exposed to the outside.As a result, the first hole 22a among the first insulator 20a is passed in the positive contact 11 on the top of electrode assemblie 10, and the second hole 22b among the second insulator 20b is passed in the negative contact 12 on the bottom of electrode assemblie 10.Then, insulator assembly (comprising a plurality of electrode assemblies 10 that are installed among the first insulator 20a and the second insulator 20b) is inserted in the battery case (for example jar) 32, and cover plate 31 is placed on the top of insulator assembly with sealed cell.By the insulator assembly being inserted in the battery case 32 and attachment of hd 31, the positive contact 11 soldered (perhaps attached with other method) of passing first hole 22a extension is passed the inside of the negative contact 12 soldered (perhaps attached with other method) of second hole 22b extension to battery case 32 to the anode tap 33 that is formed in the cover plate 31.
Shown in Fig. 5 A, in certain embodiments, positive contact 11 is connected to cover plate via anode tap 33.Cover plate 31 can be via packing ring 34 and anode tap 33 insulation.For positive contact 11 is connected to anode tap 33, the first hole 22a be arranged in first insulator with on the position corresponding to the position of the anode tap in the cover plate 33.This structure makes it possible to easily positive contact 11 is coupled (e.g., welded) to anode tap 33.Though battery case 32 and cover plate 31 have been described to have positive polarity, battery case and cover plate also can have opposite polarity.
A plurality of electrode assemblies 10 can be arranged on the insulator, make positive contact 11 and negative contact 12 accurately be positioned at attached (for example welding) position to battery case 32 or cover plate 31.Promptly, accommodation section 21a on insulator 20a and the 20b and 21b are located so that their corresponding electrode assemblies 10 accurately are arranged in battery case 32, thereby each positive contact 11 and negative contact 12 can be easily and accurately be coupled (e.g., welded) to battery case 32 or cover plate 31.By this accurate localization of a plurality of electrode assemblies, battery component can be simplified, the feasible structural stability of making battery unit easily and improving module.In addition, this establishing protective electrode assemblie 10 (it has low mechanical strength) and help to prevent the distortion of electrode assemblie 10.
Fig. 5 A is the sectional view along the line A-A ' of Fig. 4 intercepting, and illustrates being connected of anode tap 33 in positive contact 11 and the cover plate 31.With reference to figure 5A, the first hole 22a that the first insulator 20a is passed in positive contact 11 (top of its electrode assemblie 10 from be installed in the first accommodation section 21a is outstanding) extends.The positive contact 11 that is exposed, makes not contact cover plate 31 to anode tap 33 with the structure of bending soldered (perhaps attached in other mode).Anode tap 33 can be by packing ring 34 and cover plate 31 insulation.Packing ring 34 has usually the patchhole 35 of the heart therein, and anode tap 33 can insert this patchhole 35 makes anode tap 33 can contact positive contact 11.Shown in Fig. 5 A, the position of the first hole 22a direct anode joint 11 among the first insulator 20a makes it possible to easily connect (for example welding) anode tap 33 and positive contact 11.
Fig. 5 B is the sectional view that the line B-B ' along Fig. 4 is intercepted, and illustrates being connected of negative contact 12 and battery case 32.With reference to figure 5B, the second hole 22b that the second insulator 20b is passed in negative contact 12 (bottom of its electrode assemblie 10 from be installed in the second accommodation section 21b is outstanding) extends.Because jar 32 itself has positive polarity, the negative contact 12 of passing second hole 22b extension is with the inside of the structure of bending soldered (perhaps attached in other mode) to jar 32.
Fig. 6 is the perspective view of battery module according to still another embodiment of the invention.With reference to figure 6, negative contact 12 is attached to battery case 32 by the mode identical with battery module among Fig. 4.Yet positive contact 11 is different to attached and Fig. 4 of cover plate.As shown in Figure 6, cover plate 31 comprises single anode tap 33 ', and positive contact 11 is attached to this anode tap 33 '.The positive contact 11 each soldered (perhaps in other mode connect) outstanding from the top of the first insulator 20a is to contact conductor connector 36, and this contact conductor connector 36 is electrically connected to the single anode tap 33 ' in the patchhole 35 that is inserted into packing ring 34 '.According to this structure, cover plate 31 only comprises an anode tap 33 ', makes battery module can have simpler structure.
Packing ring 34 ' is positioned in the cover plate 31, so that anode tap 33 ' and cover plate 31 are insulated.Cover plate can also comprise the insulation board 37 between contact conductor connector 36 and cover plate 31, makes that contact conductor connector 36 with negative polarity and the cover plate 31 with positive polarity can be insulated from each other.
Fig. 7 is the perspective view that is installed in a plurality of electrode assemblies in the insulator according to still another embodiment of the invention.With reference to figure 7, can use the insulator 20 that wherein is inserted with a plurality of electrode assemblies 10 to make medium size and large-sized battery module.Insulator 20 comprises the accommodation section 21 ' of the bottom that is used to support a plurality of electrode assemblies 10.As shown in Figure 7, accommodation section 21 ' is the depression in the surface of insulator 20, and the bottom of electrode assemblie 10 can be inserted in this depression.This depression can have any suitable degree of depth of energy support electrode assembly 10.For example, this depression can have the degree of depth that is suitable for around the bottom of electrode assemblie 10.
Hole 22 in insulator (negative contact 12 of electrode assemblie 10 is passed it and extended) is positioned in the accommodation section 21 ' of insulator, makes when electrode assemblie 10 is inserted in the accommodation section 21 ', and negative contact 12 is passed the hole 22 of insulator 20 and extended.Therefore, hole 22 is used to aim at a plurality of negative contacts 12, makes it possible to easily attached (for example by welding) joint 12 thus to battery case.
Insulator 20 (having a plurality of electrode assemblies 10 that are installed in the accommodation section 21 ') is inserted in the battery case, therefore makes it possible to accurate keeper electrode assembly 10 in battery case.
Fig. 8 is the perspective view that is installed in a plurality of electrode assemblies in the insulator according to further embodiment of this invention.With reference to figure 8, each accommodation section 21 of insulator 20 " support at least a portion of periphery of the bottom of its corresponding electrode assembly 10.Go out accommodation section 21 as shown " outstanding from the upper surface of insulator 20, and each accommodation section 21 " comprise outer peripheral wall with at least one opening.In other words, with the constructed in any manner accommodation section 21 of acquisition " for the support of the minimum of electrode assemblie 10.For example, in an one exemplary embodiment, accommodation section 21 " outer peripheral wall can comprise and surpass one opening that and the opening in the wall can repeat with any suitable interval.
Fig. 9 is the decomposition diagram that is installed in a plurality of electrode assemblies in first insulator and second insulator according to further embodiment of this invention.With reference to figure 9, can be inserted into the battery case (not shown) by the insulator 20 that will be equipped with a plurality of flat cylindrical electrode assemblies 10 (promptly not being circular components) and make medium size and large-sized battery module.As shown in Figure 9, insulator 20 comprises the first insulator 20a on the top that is positioned at electrode assemblie 10 and is positioned at the second insulator 20b on the bottom of electrode assemblie 10.The top of the first accommodation section 21a support electrode assembly 10 also is formed on the first insulator 20a.The bottom of the second accommodation section 21b support electrode assembly 10 also is formed on the second insulator 20b.
As shown in Figure 9, the first accommodation section 21a and the second accommodation section 21b are outstanding from the first insulator 20a and the second insulator 20b respectively, and separate the position of inserting electrode assemblie 10 to be defined for. Accommodation section 21a and 21b can have any suitable shape in order to center on the top or the bottom of electrode assemblie though accommodation section 21a and 21b are shown in Figure 9, comprise above-mentioned Any shape with reference to figure 1-8 argumentation.For example, accommodation section 21a and 21b can be shaped as the partly top or the bottom of support electrode assembly 10, as shown in Figure 8.
Because flat cylindrical electrode assembly 10 has all along equidirectional outstanding positive contact 11 and negative contact 12, the first insulator 20a comprises the first hole 23a and the second hole 23b, this first hole 23a extension is passed in positive contact 11, and negative contact is passed this second hole 23b and extended.The first hole 23a and the second hole 23b are respectively formed among the accommodation section 21a of the first insulator 20a, and its position is respectively corresponding to the position of positive contact 11 and negative contact 12.The positive contact 11 of passing first hole 23a extension is attached to the position alignment of battery case with the negative contact 12 of passing second hole 23b extension with them, makes it possible to thus easily joint attached (for example by welding) be arrived shell.
Though the first accommodation section 21a and the second accommodation section 21b are illustrated as outstanding from the first insulator 20a and the second insulator 20b respectively in Fig. 9, alternately, they can be the depressions in the surface of the first insulator 20a and the second insulator 20b, as shown in Figure 7.In addition, because positive contact 11 and negative contact 12 are 10 outstanding along identical direction from electrode assemblie, so insulator can comprise the single insulator of the part of extending joint (for example top) top that is arranged on electrode assemblie.
In order to form flat cylindrical electrode assembly 10, dividing plate is positioned between positive plate and the minus plate, and this structure is reeled to form jellyroll type electrode assemblie.Positive contact 11 is connected to positive plate and outstanding from the top of electrode assemblie 10.Negative contact 12 is connected to minus plate and also outstanding from the top of electrode assemblie 10.Positive contact 11 and negative contact 12 are separated from one another and be electrically connected to electrode assemblie 10.In addition, laminated tape (lamination tape) 13 can be reeled around the part that positive contact 11 and negative contact 12 are connected to electrode assemblie 10.Laminated tape 13 stops from the heat of positive contact 11 or negative contact 12 generations and prevents that the edge of positive contact 11 or negative contact 12 from pushing electrode assemblie 10.
Though in the above-described embodiments, the hole is formed in the insulator with the exposed electrode joint, also can be formed for discharging the through hole of the heat that electrode assemblie produces.
Though, it will be understood by those skilled in the art that and to carry out various modifications and variations and not break away from the spirit and scope of the present invention that are defined by the claims described embodiment with reference to some one exemplary embodiment diagram and described the present invention.
The application requires the U.S. Provisional Application No.61/323 in the submission of United States Patent (USP) trademark office on April 12nd, 2010, the U.S. non-provisional application No.12/916 that on October 29th, 274 and 2010 submitted in United States Patent (USP) trademark office, 339 priority and rights and interests, its full content is incorporated herein by reference.

Claims (14)

1. battery unit comprises:
At least two electrode assemblies, each electrode assemblie comprise anode, negative electrode, the dividing plate between described anode and negative electrode and the electrode nipple that extends from described anode or described negative electrode;
At least one insulation board, has at least one opening, in the described electrode nipple at least one passed described at least one opening, and described at least one insulation board comprises the accommodation section that is used for each electrode assemblie, and each accommodation section is configured to hold at least a portion of its corresponding electrode assembly.
2. battery unit according to claim 1, wherein said insulation board comprises the surface, wherein each accommodation section comprises and surmounts described surface and at least one outstanding wall.
3. battery unit according to claim 1, wherein said at least one insulation board comprises first insulation board and second insulation board.
4. battery unit according to claim 3, wherein each electrode nipple of each electrode assemblie comprises first electrode nipple that extends from first end of described electrode assemblie and second electrode nipple that extends from second end of described electrode assemblie, described at least one opening in described at least one insulation board is included in first opening and second opening in described second insulation board in described first insulation board, described first opening that wherein said first electrode nipple passes in described first insulation board extends, and described second opening that described second electrode nipple passes in described second insulation board extends.
5. battery unit according to claim 4, also comprise around the battery case and the cover plate assembly of described at least one insulation board and described at least two electrode assemblies, wherein described first electrode nipple of each electrode assemblie passes described first opening extension in described first insulation board and contacts described battery case, and described second electrode nipple of each electrode assemblie passes described second opening extension in described second insulation board and contacts described cover plate assembly.
6. battery unit according to claim 5, wherein said cover plate assembly comprises:
Cover plate; With
The contact conductor that is used for each electrode assemblie, wherein described second electrode nipple of each electrode assemblie contacts its corresponding electrode lead-in wire.
7. battery unit according to claim 6, wherein said cover plate also comprises packing ring, described gasket arrangements is with described contact conductor and the insulation of described cover plate.
8. battery unit according to claim 5, wherein said cover plate assembly comprises:
Cover plate;
The contact conductor connector, wherein described second electrode nipple of each electrode assemblie contacts described contact conductor connector; With
Contact conductor is connected to described contact conductor connector.
9. battery unit according to claim 8, wherein said cover plate assembly also comprises insulating part.
10. battery unit according to claim 1, wherein the described electrode nipple of each electrode assemblie comprises first electrode nipple and second electrode nipple that all extends from first end, described insulation board comprises first opening and second opening that is used for each electrode assemblie, wherein said first electrode nipple passes described first opening and extends, and described second electrode nipple passes described second opening extension.
11. battery unit according to claim 1, wherein each accommodation section is configured to hold at least a portion of periphery of first end of its corresponding electrode assembly.
12. battery unit according to claim 11, wherein each accommodation section comprises the outer wall with at least one opening.
13. battery unit according to claim 11, wherein each accommodation section comprises outer peripheral wall.
14. battery unit according to claim 1, wherein each accommodation section is included in the depression in the surface of described insulation board.
CN201110086060.6A 2010-04-12 2011-04-07 Battery module Expired - Fee Related CN102214806B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US32327410P 2010-04-12 2010-04-12
US61/323,274 2010-04-12
US12/916,339 2010-10-29
US12/916,339 US20110250488A1 (en) 2010-04-12 2010-10-29 Secondary battery

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CN102214806B CN102214806B (en) 2014-08-20

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CN108321329A (en) * 2012-10-11 2018-07-24 凯尊创新有限公司 Li-ion batteries piles
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CN111492523A (en) * 2018-03-23 2020-08-04 重庆金康新能源汽车有限公司 Integrated battery module of electric vehicle
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CN112310547A (en) * 2020-04-09 2021-02-02 宁德时代新能源科技股份有限公司 Battery, electric device and production method of battery
US11973236B2 (en) 2020-04-09 2024-04-30 Contemporary Amperex Technology Co., Ltd. Battery, electric apparatus and method for producing battery

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US9178188B2 (en) 2011-08-08 2015-11-03 Samsung Sdi Co., Ltd. Rechargeable battery with collector plates having insulators and conductors
CN102931374A (en) * 2011-08-08 2013-02-13 三星Sdi株式会社 Rechargeable battery and method for fabricating the same
CN108321329A (en) * 2012-10-11 2018-07-24 凯尊创新有限公司 Li-ion batteries piles
CN105374964A (en) * 2014-08-14 2016-03-02 柯尼希金属有限两合公司 Battery housing
CN105374964B (en) * 2014-08-14 2017-11-14 柯尼希金属有限两合公司 Battery case
CN111492523B (en) * 2018-03-23 2022-08-02 重庆金康新能源汽车有限公司 Integrated battery module of electric vehicle
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