CN102339970A - Lithium battery - Google Patents
Lithium battery Download PDFInfo
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- CN102339970A CN102339970A CN2011103337615A CN201110333761A CN102339970A CN 102339970 A CN102339970 A CN 102339970A CN 2011103337615 A CN2011103337615 A CN 2011103337615A CN 201110333761 A CN201110333761 A CN 201110333761A CN 102339970 A CN102339970 A CN 102339970A
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- welding
- lithium battery
- negative pole
- aluminum hull
- block
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a lithium battery which comprises a battery core and an aluminum shell, wherein the battery core is arranged in the aluminum shell; the anode of the battery core is provided with at least one anode welding slot, and the inside of a top cover of the aluminum shell is provided with an anode welding rib matched with the anode welding slot. The lithium battery disclosed by the invention has the advantages of both saving the material cost and the machining cost and improving the operating efficiency; and the lithium battery has the greatest advantages of superior high rate discharge property, and because of such a welding outgoing mode, multiple welding points are omitted, thereby ensuring that the current can pass through the lithium battery more quickly and directly.
Description
Technical field
The present invention relates to a kind of lithium battery.
Background technology
The welding of the both positive and negative polarity of electric core and shell and block needs twice welding to accomplish at least in the at present general dynamic lithium battery; Of Fig. 1; The compound mode of battery is with regard to more complicated; Pad is also many, and the positive pole ear of this electric core is to adopt the mode and the anode collection circle of ultrasonic bonding to weld together; And anode collection circle and lug adopt laser and supersonic welding to be connected together; The welding that connects lug and brace also adopts laser or supersonic welding to be connected together; Between negative pole end and the negative pole currect collecting circle of electricity core be employing ultrasonic wave or laser welding together; Negative pole currect collecting circle and electric core negative electrode lug also adopt laser and supersonic welding to be connected together.
Pad is many more, and the failure rate that occurs in the production process is just high more, and the big more heating of the battery electric current that pad passes through when discharging and recharging is just big more, and the temperature that battery produces is high more, and the capacity of battery and life-span are just more little.
Summary of the invention
The object of the present invention is to provide a kind of lithium battery, can effectively solve existing lithium battery production solder joint and too much cause battery capacity and life-span problem of smaller.
In order to solve the problems of the technologies described above; The present invention realizes through following technical scheme: a kind of lithium battery; Comprise electric core, aluminum hull; Said electric core is arranged in the aluminum hull, and the positive pole of said electric core is provided with at least one anodal welding groove, and the inboard of the top cover of said aluminum hull is provided with the positive pole welding raised line suitable with anodal welding groove.
Preferably, said aluminum hull top cover is provided with anodal double-screw bolt; Convenient and the external world joins.
Preferably, the top cover of said anodal welding raised line, anodal double-screw bolt and aluminum hull is one-body molded; The convenient manufacturing reduced welding.
Preferably, the top cover of the positive pole of said electric core and aluminum hull adopts laser welding; Need not use electrode, not have electrode fouling or impaired misgivings, and because of not belonging to contact welding processing procedure, the consume of facility and distortion connect can reduce to minimum.
Preferably; Also comprise afflux circle, block, the negative pole of said electric core is provided with at least one negative pole welding groove, and the bottom surface of said afflux circle is provided with the negative pole welding raised line suitable with the negative pole welding groove; Said block is arranged in the aluminum hull of afflux circle top; Said block and aluminum hull sealing are provided with, and said afflux circle is provided with the negative pole double-screw bolt, and said negative pole double-screw bolt wore block; Make the welding times of negative pole also drop to minimum.
Preferably, also be provided with on the said block and the suitable nut of negative pole double-screw bolt, be provided with sealing ring between said negative pole double-screw bolt and the block; Further seal.
Preferably, adopt laser welding between the negative pole of said afflux circle and electric core, also adopt laser welding between said block and the aluminum hull; Need not use electrode, not have electrode fouling or impaired misgivings, and because of not belonging to contact welding processing procedure, the consume of facility and distortion connect can reduce to minimum.
Compared with prior art, advantage of the present invention is: both practiced thrift material cost and practiced thrift processing cost, also improved operating efficiency; Biggest advantage is the heavy-current discharge characteristic that it is superior, because such welding lead-out mode has saved a lot of pads, guarantees that electric current more directly passes through faster.
Description of drawings
Fig. 1 is the structural representation of existing lithium battery;
Fig. 2 is the structural representation of a kind of lithium battery of the present invention;
Fig. 3 is the structural representation of electric core in a kind of lithium battery of the present invention;
Fig. 4 is the cutaway view of aluminum hull top cover in a kind of lithium battery of the present invention.
Embodiment
Consult Fig. 2 to Fig. 4 and be the embodiment of a kind of lithium battery of the present invention, a kind of lithium battery comprises electric core 4, aluminum hull 5; Said electric core 4 is arranged in the aluminum hull 5, and the positive pole of said electric core 4 is provided with at least one anodal welding groove 41, and the inboard of the top cover 51 of said aluminum hull 5 is provided with anodal welding groove 41 suitable positive poles and welds raised line 52; Said aluminum hull 5 top covers 51 are provided with anodal double-screw bolt 53; The top cover 51 of said anodal welding raised line 52, anodal double-screw bolt 53 and aluminum hull 5 is one-body molded, and the top cover 51 of the positive pole of said electric core 4 and aluminum hull 5 adopts laser welding, also comprises afflux circle 3, block 2; The negative pole of said electric core 4 is provided with at least one negative pole welding groove 42; The bottom surface of said afflux circle 3 is provided with negative pole welding groove 42 suitable negative poles and welds raised line, and said block 2 is arranged in the aluminum hull 5 of afflux circle 3 tops, and said block 2 is provided with aluminum hull 5 sealings; Said afflux circle 3 is provided with negative pole double-screw bolt 1; Said negative pole double-screw bolt 1 wore block 2, also was provided with the nut 21 suitable with negative pole double-screw bolt 1 on the said block 2, and said negative pole double-screw bolt 1 is provided with sealing ring between 2 with blocking a shot; Adopt laser welding between the negative pole of said afflux circle 3 and electric core 4, also adopt laser welding between said block 2 and the aluminum hull 5.
The above is merely specific embodiment of the present invention, but technical characterictic of the present invention is not limited thereto, and any those skilled in the art is in the field of the invention, and the variation of being done or modify all is encompassed among the claim of the present invention.
Claims (7)
1. lithium battery; Comprise electric core (4), aluminum hull (5); Said electric core (4) is arranged in the aluminum hull (5); It is characterized in that: the positive pole of said electric core (4) is provided with at least one anodal welding groove (41), and the inboard of the top cover (51) of said aluminum hull (5) is provided with the positive pole welding raised line (52) suitable with anodal welding groove (41).
2. a kind of lithium battery as claimed in claim 1 is characterized in that: the top cover (51) of said aluminum hull (5) is provided with anodal double-screw bolt (53).
3. a kind of lithium battery as claimed in claim 2 is characterized in that: the top cover (51) of said anodal welding raised line (52), anodal double-screw bolt (53) and aluminum hull (5) is one-body molded.
4. a kind of lithium battery as claimed in claim 1 is characterized in that: the top cover (51) of the positive pole of said electric core (4) and aluminum hull (5) adopts laser welding.
5. a kind of lithium battery as claimed in claim 1; It is characterized in that: also comprise afflux circle (3), block (2); The negative pole of said electric core (4) is provided with at least one negative pole welding groove (42); The bottom surface of said afflux circle (3) is provided with the negative pole welding raised line suitable with negative pole welding groove (42), and said block (2) is arranged in the aluminum hull (5) of afflux circle (3) top, and said block (2) is provided with aluminum hull (5) sealing; Said afflux circle (3) is provided with negative pole double-screw bolt (1), and said negative pole double-screw bolt (1) wore block (2).
6. a kind of lithium battery as claimed in claim 5 is characterized in that: also be provided with the nut (21) suitable with negative pole double-screw bolt (1) on the said block (2), be provided with sealing ring between said negative pole double-screw bolt (1) and the block (2).
7. a kind of lithium battery as claimed in claim 5 is characterized in that: adopt laser welding between the negative pole of said afflux circle (3) and electric core (4), also adopt laser welding between said block (2) and the aluminum hull (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103337615A CN102339970A (en) | 2011-10-28 | 2011-10-28 | Lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103337615A CN102339970A (en) | 2011-10-28 | 2011-10-28 | Lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102339970A true CN102339970A (en) | 2012-02-01 |
Family
ID=45515566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103337615A Pending CN102339970A (en) | 2011-10-28 | 2011-10-28 | Lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102339970A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1694281A (en) * | 2004-04-27 | 2005-11-09 | 三星Sdi株式会社 | Secondary battery |
| US20110076547A1 (en) * | 2009-09-30 | 2011-03-31 | Shin Hosik | Rechargeable battery |
| CN202259522U (en) * | 2011-10-28 | 2012-05-30 | 徐敖奎 | Lithium battery |
-
2011
- 2011-10-28 CN CN2011103337615A patent/CN102339970A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1694281A (en) * | 2004-04-27 | 2005-11-09 | 三星Sdi株式会社 | Secondary battery |
| US20110076547A1 (en) * | 2009-09-30 | 2011-03-31 | Shin Hosik | Rechargeable battery |
| CN202259522U (en) * | 2011-10-28 | 2012-05-30 | 徐敖奎 | Lithium battery |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120201 |