CN102064339A - Lithium battery and assembling method thereof - Google Patents
Lithium battery and assembling method thereof Download PDFInfo
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- CN102064339A CN102064339A CN2010105984579A CN201010598457A CN102064339A CN 102064339 A CN102064339 A CN 102064339A CN 2010105984579 A CN2010105984579 A CN 2010105984579A CN 201010598457 A CN201010598457 A CN 201010598457A CN 102064339 A CN102064339 A CN 102064339A
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- screw bolt
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The embodiment of the invention discloses a lithium battery which comprises a shell, wherein both ends of the shell are open to form two opening ends; one opening end is connected and matched with an anode cover board; the other opening end is connected and matched with a cathode cover board; a battery pole rod body is coated in the shell; the winding initial position of the battery pole rod body is connected with a middle bracket tube; the middle bracket tube runs through the battery pole rod body; the anode of the battery pole rod body is connected with the anode cover board through one end of the middle bracket tube to form an anode end of the lithium battery; and the cathode of the battery pole rod body is connected with the cathode cover board through the other end of the middle bracket tube to form a cathode end of the lithium battery. The embodiment of the invention also discloses an assembling method of the lithium battery. The lithium battery is in a stud structure and has a low self-discharge rate, strong current conveyance capacity and high battery comprehensive performance. Moreover, the lithium battery has a simple assembling process, a simple manufacturing process and a low cost.
Description
Technical field
The present invention relates to the battery technology field, relate in particular to a kind of lithium battery and assembly method thereof.
Background technology
Lithium battery is that a class is negative material, the battery that uses non-aqueous electrolytic solution by lithium metal or lithium alloy; Lithium battery is mainly used in electric automobile (big bus, car etc.), power station energy storage (solar energy, wind energy, peak-load regulation etc.), mobile network's base station power, ups power fields such as (Uninterruptible Power Supply, uninterrupted power supplys).
Existing lithium battery mainly comprises following several structure, one is: big cube structure, its housing can adopt materials such as steel, aluminium, Soft Roll body, plastic cement, and the battery electrode column body that coats in the housing is general to adopt multipole mode such as lamination, coiling or the parallel connection of multireel core to form.The inventor finds that the generous body battery that adopts multipole lamination mode to form, its positive and negative electrode, barrier film are in the shaping process, and the Edge Distance of lamination is difficult to control, thereby lamination is misplaced, and influences battery performance; Adopt to reel, the multireel core generous body battery that forms in parallel, its assembling process complexity, the width of single volume core, highly, thickness is difficult for grasping, the consistency that causes rolling up core is poor, and the volume core of reeling is in the shaping process, and the easy shedding in its edge causes the generation of battery short circuit, micro-short circuit situation.It two is: cylindrical structural, its housing generally adopts materials such as steel, aluminium, coats battery electrode column body in it.The inventor finds, adopts the cylindrical battery of metal shell, and the both positive and negative polarity of outside batteries is directly drawn, and need rely on the spot welding metal connecting sheet to realize the battery series and parallel at its positive and negative electrode when being used in combination; Because metal shell easily causes external short-circuit of battery, when being used in combination, assembling process need be taked the outer protection measure; and rely on jet-bedding position or interior shape device self-contained battery pole body, its complicated operation causes the cylindrical battery cost of metal shell higher; reliability is low, not easy care.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of lithium battery and assembly method thereof are provided, and wherein, lithium battery adopts the studs structure, and the self-discharge rate of lithium battery is little, and the electric current handling capacity is strong, battery combination property height; In addition, the assembling process of lithium battery is simple and easy, and manufacturing process is simple, and cost is low.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of lithium battery, comprising:
Housing, the both ends open of described housing forms two openends, and one of them openend is connected cooperation with anodal cover plate, and another openend is connected cooperation with the negative pole cover plate;
Be coated with the battery electrode column body in the described housing, the position of starting that described battery electrode column body is reeled is connected with the intermediate support pipe, and described intermediate support pipe connects described battery electrode column body;
The positive pole of described battery electrode column body is connected with described anodal cover plate by an end of described intermediate support pipe, constitutes the positive terminal of lithium battery; The negative pole of described battery electrode column body is connected with described negative pole cover plate by the other end of described intermediate support pipe, constitutes the negative pole end of lithium battery.
Wherein, the centre position of described anodal cover plate is provided with the positive maximum double-screw bolt by the injection moulding mode;
The first half of described positive maximum double-screw bolt is a solid construction, and the latter half is a hollow-core construction, and the inwall of described hollow-core construction is provided with screw thread;
Described anodal cover plate is provided with an opening, and described opening matches with the mode of sealing plug by ultra-sonic welded.
Wherein, the centre position of described negative pole cover plate is provided with the negative maximum double-screw bolt by the injection moulding mode;
The first half of described negative maximum double-screw bolt is a solid construction, and the latter half is a hollow-core construction, and the inwall of described hollow-core construction is provided with screw thread.
Wherein, an end of described intermediate support pipe is connected with just minimum double-screw bolt, and the other end of described intermediate support pipe is connected with the little double-screw bolt of negative pole;
Described just minimum double-screw bolt is connected with the anode ear of described battery electrode column body;
The little double-screw bolt of described negative pole is connected with the negative electrode lug of described battery electrode column body.
Wherein, the junction of described just minimum double-screw bolt and described anode ear is provided with anodal pad; Be connected with anodal primary nut on the described just minimum double-screw bolt, described anodal primary nut matches with described just minimum double-screw bolt, and described anode ear and described anodal pad are locked on the described just minimum double-screw bolt;
The junction of little double-screw bolt of described negative pole and described negative electrode lug is provided with the negative pole pad; Be connected with the negative pole primary nut on the little double-screw bolt of described negative pole, described negative pole primary nut matches with the little double-screw bolt of described negative pole, and described negative electrode lug and described negative pole pad are locked on the little double-screw bolt of described negative pole.
Wherein, the threads engaged in the hollow-core construction of described just minimum double-screw bolt and positive maximum double-screw bolt is fixed on the described anodal cover plate described just minimum double-screw bolt, forms the positive terminal of lithium battery;
Threads engaged in the hollow-core construction of little double-screw bolt of described negative pole and negative maximum double-screw bolt is fixed on the described negative pole cover plate the little double-screw bolt of described negative pole, forms the negative pole end of lithium battery.
Wherein, described housing is cylindric, and described anodal cover plate and negative pole cover plate are rounded, matches with two openends of described housing respectively; Described housing, anodal cover plate and negative pole cover plate all adopt plastic cement material.
Correspondingly, the embodiment of the invention also provides a kind of assembly method of lithium battery, comprising:
The inner ring of barrier film started after heating, be pasted on the intermediate support pipe;
Positive plate, anode ear, negative plate, negative electrode lug and described barrier film are rolled into the battery electrode column body around described intermediate support pipe;
Described battery electrode column body is packed in the housing;
The negative pole of the described battery electrode column body end by described intermediate support pipe is connected with the negative pole cover plate, constitutes the negative pole end of lithium battery;
The positive pole of the described battery electrode column body other end by described intermediate support pipe is connected with anodal cover plate, constitutes the positive terminal of lithium battery;
Described housing, anodal cover plate and negative pole cover plate all adopt plastic cement material.
Wherein, described negative pole with described battery electrode column body is connected with the negative pole cover plate by an end of described intermediate support pipe, constitutes the negative pole end of lithium battery, comprising:
The little double-screw bolt of negative pole is enclosed within an end of described intermediate support pipe;
The negative electrode lug of described battery electrode column body is enclosed within on the little double-screw bolt of described negative pole, the negative electrode lug of described battery electrode column body is connected with the little double-screw bolt of described negative pole;
Negative pole pad on the junction pad of described negative electrode lug and the little double-screw bolt of described negative pole;
Adopt the negative pole primary nut that described negative electrode lug and described negative pole pad are locked on the little double-screw bolt of negative pole;
With the threads engaged in the hollow-core construction of little double-screw bolt of described negative pole and negative maximum double-screw bolt, the little double-screw bolt of described negative pole is fixed on the described negative pole cover plate;
Described negative pole cover plate closely is welded in an openend of housing, forms the negative pole end of lithium battery.
Wherein, described positive pole with described battery electrode column body is connected with anodal cover plate by the other end of described intermediate support pipe, constitutes the positive terminal of lithium battery, comprising:
Just minimum double-screw bolt is enclosed within the other end of described intermediate support pipe;
The anode ear of described battery electrode column body is enclosed within on the described just minimum double-screw bolt, the anode ear of described battery electrode column body is connected with described just minimum double-screw bolt;
Anodal pad on the junction pad of described anode ear and described just minimum double-screw bolt;
Adopt anodal primary nut that described anode ear and described anodal pad are locked on the just minimum double-screw bolt;
With the threads engaged in the hollow-core construction of described just minimum double-screw bolt and positive maximum double-screw bolt, described just minimum double-screw bolt is fixed on the described anodal cover plate;
Described anodal cover plate closely is welded in another openend of housing, forms the positive terminal of lithium battery;
Sealing plug is fixed by opening on the described anodal cover plate and described anodal cover plate, make the whole housing of lithium battery be in sealing state.
Implement the embodiment of the invention, have following beneficial effect:
The lithium battery of the embodiment of the invention adopts the studs structure, makes the use of lithium battery more convenient, and when being used in combination, assembling process is simpler and easy, thereby has improved the practicality of lithium battery; In addition, adopt intermediate support pipe and battery electrode column body to closely cooperate, make the making of battery electrode column body more simple, need not to rely on jet-bedding position or interior shape device can guarantee stability of structure, also need not corresponding plant equipment and carry out auxiliary operation, reduced cost of manufacture; Positive and negative electrode and intermediate support pipe, the studs of the battery electrode column body of lithium battery closely cooperate, and make the self-discharge rate of the lithium battery that the embodiment of the invention makes little, and the electric current handling capacity is strong, battery combination property height.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of lithium battery of the present invention;
Fig. 2 is the left view of lithium battery shown in Figure 1;
Fig. 3 is the right view of lithium battery shown in Figure 1;
Fig. 4 is a lithium battery shown in Figure 1 cross section structure schematic diagram along AA ' direction among Fig. 1;
Fig. 5 is first schematic diagram of the assembling process of lithium battery of the present invention;
Fig. 6 is second schematic diagram of the assembling process of lithium battery of the present invention;
Fig. 7 is the vertical view of structure shown in Figure 6;
Fig. 8 is the 3rd schematic diagram of the assembling process of lithium battery of the present invention;
Fig. 9 is the vertical view of structure shown in Figure 8;
Figure 10 is the 4th schematic diagram of the assembling process of lithium battery of the present invention;
Figure 11 is the 5th schematic diagram of the assembling process of lithium battery of the present invention;
Figure 12 is the 6th schematic diagram of the assembling process of lithium battery of the present invention;
Package assembly schematic diagram when Figure 13 is used in combination for lithium battery of the present invention;
Figure 14 is the vertical view of structure shown in Figure 13.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
See also Fig. 1, be the structural representation of the embodiment of lithium battery of the present invention; Please, be the left view of lithium battery shown in Figure 1 in the lump referring to Fig. 2; Described lithium battery comprises:
Please, be the right view of lithium battery shown in Figure 1 in the lump referring to Fig. 3; Described lithium battery also comprises:
Negative pole cover plate 2, this negative pole cover plate 2 is rounded, adopts plastic cement material, and preferably, this negative pole cover plate 2 adopts the PP material.The centre position of this negative pole cover plate 2 is provided with negative maximum double-screw bolt 4, particularly, the position formed negative maximum double-screw bolt 4 in the middle of negative pole cover plate 2 made it by the injection moulding mode, the material of this negative maximum double-screw bolt 4 is an aluminium, its the first half is a solid construction, the latter half is a hollow-core construction, and the inwall of this hollow-core construction is provided with screw thread.
Please, be lithium battery shown in Figure 1 cross section structure schematic diagram along AA ' direction among Fig. 1 in the lump referring to Fig. 4;
Battery electrode column body (volume core) 16 is housed in the housing 15, and this battery electrode column body 16 is reeled by positive plate, negative plate, positive and negative lug, barrier film and gummed paper etc. and is formed.The centre of battery electrode column body 16 (position of starting of coiling) is connected with intermediate support pipe 17, and this intermediate support pipe 17 adopts plastic cement material, preferably adopts the PP material, and it connects this battery electrode column body 16; The barrier film inner ring of this battery electrode column body 16 is started after heating, and is pasted on this intermediate support pipe 17, and this intermediate support pipe 17 is closely linked to each other with battery electrode column body 16.
One end of intermediate support pipe 17 is connected with just minimum double-screw bolt 5, and the material of this just minimum double-screw bolt 5 is an aluminium, and the other end of intermediate support pipe 17 is connected with the little double-screw bolt 6 of negative pole, and the material of the little double-screw bolt 6 of this negative pole is a copper; Just minimum double-screw bolt 5 is connected with the two ends of intermediate support pipe 17 by modes such as welding, riveted joint or crimping respectively with the little double-screw bolt 6 of negative pole.
Just minimum double-screw bolt 5 is connected with the anode ear 13 of battery electrode column body 16, and the material of this anode ear 13 is an aluminium, and its quantity is 1-N(N〉1) individual, in the specific implementation, the concrete number of anode ear 13 is determined by the required positive plate quantity of battery electrode column body 16 coilings.The junction of just minimum double-screw bolt 5 and anode ear 13 is provided with anodal pad 7, and the material of this positive pole pad 7 is an aluminium.Be connected with anodal primary nut 11 on the just minimum double-screw bolt 5, the material of this positive pole primary nut 11 is an aluminium, and it matches with just minimum double-screw bolt 5, and anode ear 13 and anodal pad 7 are locked on the just minimum double-screw bolt 5.
The little double-screw bolt 6 of negative pole is connected with the negative electrode lug 14 of battery electrode column body 16, and the material of this negative electrode lug 14 is an aluminium, and its quantity is 1-N(N〉1) individual, in the specific implementation, the concrete number of negative electrode lug 14 is determined by the required negative plate quantity of battery electrode column body 16 coilings.The junction of little double-screw bolt 6 of negative pole and negative electrode lug 14 is provided with negative pole pad 8, and the material of this negative pole pad 8 is copper or nickel.Be connected with negative pole primary nut 12 on the little double-screw bolt 6 of negative pole, the material of this negative pole primary nut 12 is a copper, and it matches with the little double-screw bolt 6 of negative pole, and negative electrode lug 14 and negative pole pad 8 are locked on the little double-screw bolt 6 of negative pole.
Just minimum double-screw bolt 5 and the interior threads engaged of the hollow-core construction of positive maximum double-screw bolt 3 are fixed on the anodal cover plate 1 just minimum double-screw bolt 5, and after fixing, positive maximum double-screw bolt 3 forms the positive terminal of lithium batteries.Little double-screw bolt 6 of negative pole and the interior threads engaged of the hollow-core construction of negative maximum double-screw bolt 4 are fixed on the negative pole cover plate 2 the little double-screw bolt 6 of negative pole, and after fixing, negative maximum double-screw bolt 4 forms the negative pole end of lithium batteries.
Further, described lithium battery also comprises:
Positive maximum nut 9, this positive maximum nut 9 is hexagon, and its material is an aluminium, and this positive maximum nut 9 matches with positive maximum double-screw bolt 3.Negative maximum nut 10, this negative maximum nut 10 is hexagon, and its material is a copper, and this negative maximum nut 10 matches with negative maximum double-screw bolt 4.Be understandable that, when being used in combination, need not to re-use modes such as spot welding metal connecting sheet, only need by positive maximum nut 9 and negative maximum nut 10 can be directly, easily described lithium battery is carried out the series and parallel assembling.
To the assembling process of the lithium battery of the embodiment of the invention be described in detail below.
See also Fig. 5, be first schematic diagram of the assembling process of lithium battery of the present invention.Positive plate 131, anode ear 13, negative plate 141 and negative electrode lug 14 is good by structure fabrication shown in Figure 5.
See also Fig. 6, be second schematic diagram of the assembling process of lithium battery of the present invention; Please, be the vertical view of structure shown in Figure 6 in the lump referring to Fig. 7.With positive plate 131, the anode ear of making 13, and negative plate 141 and negative electrode lug 14 are rolled into battery electrode column body 16 by barrier film 121 and intermediate support pipe 17, in the winding process, the inner ring of barrier film 121 is started and is pasted on after heating on the intermediate support pipe 17, like this, can guarantee that intermediate support pipe 17 closely links to each other with the battery electrode column body.
See also Fig. 8, be the 3rd schematic diagram of the assembling process of lithium battery of the present invention; Please, be the vertical view of structure shown in Figure 8 in the lump referring to Fig. 9.Just minimum double-screw bolt 5 is enclosed within an end of intermediate support pipe 17, respectively the anode ear 13 of battery electrode column body 16 is enclosed within on the just minimum double-screw bolt 5 again, be connected with just minimum double-screw bolt 5, anodal pad 7 on the pad is locked at anode ear 13 and anodal pad 7 on the just minimum double-screw bolt 5 with anodal primary nut 11 again.Adopt above-mentioned same operation, use negative pole primary nut 12 that negative electrode lug and negative pole pad 8 are locked on the little double-screw bolt 6 of negative pole.Above-mentioned assembling process, its operation is simple to operation, need not any plant equipment make, and each link cooperates closely, there be not structural rocking, therefore, do not need to rely on jet-bedding position or interior shape device to fix the battery electrode column body, avoid it in assembling process, not rock and cause the decline of inside battery quality.See also Figure 10, be the 4th schematic diagram of the assembling process of lithium battery of the present invention.Through above-mentioned assembling process, can obtain structure as shown in figure 10.
See also Figure 11, be the 5th schematic diagram of the assembling process of lithium battery of the present invention; Please in the lump referring to Figure 12, be the 6th schematic diagram of the assembling process of lithium battery of the present invention.The structure shown in Figure 10 that above-mentioned assembling is obtained after intact is packed in the housing 15, the threads engaged in the hollow-core construction of the little double-screw bolt 6 of negative pole and negative maximum double-screw bolt 4, and after tightening mutually, 6 of the little double-screw bolts of negative pole are fixed on the negative pole cover plate 2; Use the plastic cement ultrasonic bonding machine, negative pole cover plate 2 closely is welded in an openend of housing 15, promptly formed the negative pole end of lithium battery through above-mentioned steps.Adopt above-mentioned same operation, anodal cover plate 1 closely is welded in another openend of housing 15, form the positive terminal of lithium battery.Afterwards, the step that carry out battery baking, fluid injection successively, changes into, by the gas release of the opening on the anodal cover plate 1 with each step generation, after changing into end, adopt the plastic cement ultrasonic bonding machine, sealing plug 18 is fixed by opening on the anodal cover plate 1 and anodal cover plate 1, thereby make the whole casing device of lithium battery be in sealing state.
Above-mentionedly join the whole assembling process that process is the lithium battery of the embodiment of the invention,, can obtain lithium battery structure as shown in figure 12 through above-mentioned assembling process.
To the start principle of the lithium battery of the embodiment of the invention be described in detail below.
The lithium battery of the embodiment of the invention, its positive maximum double-screw bolt 3 place ends constitute the positive terminal of lithium battery, and negative maximum double-screw bolt 4 place ends constitute the negative pole end of lithium battery, and the positive and negative of lithium battery extremely all drawn in the double-screw bolt mode, and the user can conveniently use this lithium battery.When battery is used in combination, see also Figure 13, be the package assembly schematic diagram of the lithium battery group of the embodiment of the invention; Please, be the vertical view of structure shown in Figure 13 in the lump referring to Figure 14; The user is when the battery pack of using lithium battery to form, only need studs with the lithium battery of the embodiment of the invention as required as Figure 13 or mode shown in Figure 14, carry out series and parallel combination arbitrarily by positive maximum nut 9 and negative maximum nut 10, can reach and be used in combination requirement, battery pack current handling capacity after the combination is strong, has guaranteed the quality of battery.
Need to prove that the whole plastic shell that adopts of the lithium battery of the embodiment of the invention had both effectively been controlled cost, can avoid both positive and negative polarity after the battery charge simultaneously again owing to the conducting of housing, both positive and negative polarity cover plate causes short circuit.In addition, positive and negative extreme employing double end relative direction is drawn double-screw bolt, more convenient user when using lithium battery, to the assembling of battery owing to adopt the double-screw bolt mode, battery pack easy to assembly; Preferably, outside batteries adopts the PP material, and its insulation property are good, and outside batteries has improved the reliability of lithium battery without any need for insulation measures.
Be understandable that the material that each part adopted in the lithium battery of the embodiment of the invention only is for example, other situations, such as: the housing of lithium battery can also adopt other plastic materials except that the PP material; For another example: the positive and negative electrode double-screw bolt of lithium battery etc. all adopts copper or aluminium matter etc.; In addition, in the lithium battery of the embodiment of the invention shape of each part also only for for example, other situations, such as: the nut that adopts in the lithium battery also can not adopt hexagon, and adopt square etc., but similar analysis under above-mentioned other situations is not given unnecessary details at this.
By the description of the foregoing description, the lithium battery of the embodiment of the invention adopts the studs structure, makes the use of lithium battery more convenient, and when being used in combination, assembling process is simpler and easy, thereby has improved the practicality of lithium battery; In addition, adopt intermediate support pipe and battery electrode column body to closely cooperate, make the making of battery electrode column body more simple, need not to rely on jet-bedding position or interior shape device can guarantee stability of structure, also need not corresponding plant equipment and carry out auxiliary operation, reduced cost of manufacture; Positive and negative electrode and intermediate support pipe, the studs of the battery electrode column body of lithium battery closely cooperate, and make the self-discharge rate of the lithium battery that the embodiment of the invention makes little, and the electric current handling capacity is strong, battery combination property height.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above disclosed only is a kind of preferred embodiment of the present invention, certainly can not limit the present invention's interest field with this, one of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description, and, still belong to the scope that invention is contained according to the equivalent variations that claim of the present invention is done.
Claims (10)
1. a lithium battery is characterized in that, comprising:
Housing (15), the both ends open of described housing (15) forms two openends, and one of them openend is connected cooperation with anodal cover plate (1), and another openend is connected cooperation with negative pole cover plate (2);
Be coated with battery electrode column body (16) in the described housing (15), the position of starting that described battery electrode column body (16) is reeled is connected with intermediate support pipe (17), and described intermediate support pipe (17) connects described battery electrode column body (16);
The positive pole of described battery electrode column body (16) is connected with described anodal cover plate (1) by an end of described intermediate support pipe (17), constitutes the positive terminal of lithium battery; The negative pole of described battery electrode column body (16) is connected with described negative pole cover plate (2) by the other end of described intermediate support pipe (17), constitutes the negative pole end of lithium battery.
2. lithium battery as claimed in claim 1 is characterized in that:
The centre position of described anodal cover plate (1) is provided with positive maximum double-screw bolt (3) by the injection moulding mode;
The first half of described positive maximum double-screw bolt (3) is a solid construction, and the latter half is a hollow-core construction, and the inwall of described hollow-core construction is provided with screw thread;
Described anodal cover plate (1) is provided with an opening, and described opening matches with the mode of sealing plug (18) by ultra-sonic welded.
3. lithium battery as claimed in claim 2 is characterized in that:
The centre position of described negative pole cover plate (2) is provided with negative maximum double-screw bolt (4) by the injection moulding mode;
The first half of described negative maximum double-screw bolt (4) is a solid construction, and the latter half is a hollow-core construction, and the inwall of described hollow-core construction is provided with screw thread.
4. lithium battery as claimed in claim 3 is characterized in that:
One end of described intermediate support pipe (17) is connected with just minimum double-screw bolt (5), and the other end of described intermediate support pipe (17) is connected with the little double-screw bolt of negative pole (6);
Described just minimum double-screw bolt (5) is connected with the anode ear (13) of described battery electrode column body (16);
The little double-screw bolt of described negative pole (6) is connected with the negative electrode lug (14) of described battery electrode column body (16).
5. lithium battery as claimed in claim 4 is characterized in that:
The junction of described just minimum double-screw bolt (5) and described anode ear (13) is provided with anodal pad (7); Be connected with anodal primary nut (11) on the described just minimum double-screw bolt (5), described anodal primary nut (11) matches with described just minimum double-screw bolt (5), and described anode ear (13) and described anodal pad (7) are locked on the described just minimum double-screw bolt (5);
The junction of little double-screw bolt of described negative pole (6) and described negative electrode lug (14) is provided with negative pole pad (8); Be connected with negative pole primary nut (12) on the little double-screw bolt of described negative pole (6), described negative pole primary nut (12) matches with the little double-screw bolt of described negative pole (6), and described negative electrode lug (14) and described negative pole pad (8) are locked on the little double-screw bolt of described negative pole (6).
6. lithium battery as claimed in claim 5 is characterized in that:
Described just minimum double-screw bolt (5) and the interior interior threads engaged of hollow-core construction of positive maximum double-screw bolt (3) are fixed on the described anodal cover plate (1) described just minimum double-screw bolt (5), form the positive terminal of lithium battery;
Little double-screw bolt of described negative pole (6) and the interior interior threads engaged of hollow-core construction of negative maximum double-screw bolt (4) are fixed on the described negative pole cover plate (2) the little double-screw bolt of described negative pole (6), form the negative pole end of lithium battery.
7. as each described lithium battery of claim 1-6, it is characterized in that:
Described housing (15) is cylindric, and described anodal cover plate (1) and negative pole cover plate (2) are rounded, matches with two openends of described housing (15) respectively;
Described housing (15), anodal cover plate (1) and negative pole cover plate (2) all adopt plastic cement material.
8. the assembly method of a lithium battery is characterized in that, comprising:
The inner ring of barrier film started after heating, be pasted on the intermediate support pipe;
Positive plate, anode ear, negative plate, negative electrode lug and described barrier film are rolled into the battery electrode column body around described intermediate support pipe;
Described battery electrode column body is packed in the housing;
The negative pole of the described battery electrode column body end by described intermediate support pipe is connected with the negative pole cover plate, constitutes the negative pole end of lithium battery;
The positive pole of the described battery electrode column body other end by described intermediate support pipe is connected with anodal cover plate, constitutes the positive terminal of lithium battery;
Described housing, anodal cover plate and negative pole cover plate all adopt plastic cement material.
9. method as claimed in claim 8 is characterized in that, described negative pole with described battery electrode column body is connected with the negative pole cover plate by an end of described intermediate support pipe, constitutes the negative pole end of lithium battery, comprising:
The little double-screw bolt of negative pole is enclosed within an end of described intermediate support pipe;
The negative electrode lug of described battery electrode column body is enclosed within on the little double-screw bolt of described negative pole, the negative electrode lug of described battery electrode column body is connected with the little double-screw bolt of described negative pole;
Negative pole pad on the junction pad of described negative electrode lug and the little double-screw bolt of described negative pole;
Adopt the negative pole primary nut that described negative electrode lug and described negative pole pad are locked on the little double-screw bolt of negative pole;
With the threads engaged in the hollow-core construction of little double-screw bolt of described negative pole and negative maximum double-screw bolt, the little double-screw bolt of described negative pole is fixed on the described negative pole cover plate;
Described negative pole cover plate closely is welded in an openend of housing, forms the negative pole end of lithium battery.
10. method as claimed in claim 9 is characterized in that, described positive pole with described battery electrode column body is connected with anodal cover plate by the other end of described intermediate support pipe, constitutes the positive terminal of lithium battery, comprising:
Just minimum double-screw bolt is enclosed within the other end of described intermediate support pipe;
The anode ear of described battery electrode column body is enclosed within on the described just minimum double-screw bolt, the anode ear of described battery electrode column body is connected with described just minimum double-screw bolt;
Anodal pad on the junction pad of described anode ear and described just minimum double-screw bolt;
Adopt anodal primary nut that described anode ear and described anodal pad are locked on the just minimum double-screw bolt;
With the threads engaged in the hollow-core construction of described just minimum double-screw bolt and positive maximum double-screw bolt, described just minimum double-screw bolt is fixed on the described anodal cover plate;
Described anodal cover plate closely is welded in another openend of housing, forms the positive terminal of lithium battery;
Sealing plug is fixed by opening on the described anodal cover plate and described anodal cover plate, make the whole housing of lithium battery be in sealing state.
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| CN2010105984579A CN102064339A (en) | 2010-12-21 | 2010-12-21 | Lithium battery and assembling method thereof |
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| CN2010105984579A CN102064339A (en) | 2010-12-21 | 2010-12-21 | Lithium battery and assembling method thereof |
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Application publication date: 20110518 |