CN201927674U - Lithium-ion battery comprising anode pole piece provided with strip non-foil parts - Google Patents
Lithium-ion battery comprising anode pole piece provided with strip non-foil parts Download PDFInfo
- Publication number
- CN201927674U CN201927674U CN2010206503887U CN201020650388U CN201927674U CN 201927674 U CN201927674 U CN 201927674U CN 2010206503887 U CN2010206503887 U CN 2010206503887U CN 201020650388 U CN201020650388 U CN 201020650388U CN 201927674 U CN201927674 U CN 201927674U
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- Prior art keywords
- pole piece
- anode
- cathode
- nickel
- conductive plate
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Links
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 25
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000011888 foil Substances 0.000 title abstract 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000003792 electrolyte Substances 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims description 15
- 238000007747 plating Methods 0.000 claims description 12
- 239000004411 aluminium Substances 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000007774 positive electrode material Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 3
- 239000006183 anode active material Substances 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 239000011149 active material Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005405 multipole Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229910017704 MH-Ni Inorganic materials 0.000 description 1
- 229910017739 MH—Ni Inorganic materials 0.000 description 1
- 229910003307 Ni-Cd Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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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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- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium-ion battery comprising an anode pole piece provided with strip non-foil parts, which comprises an anode cap, a cathode cap, an aluminum conducting disc, a nickel conducting disc, a nickel-plated steel barrel and a battery core, wherein the anode cap and the cathode cap are arranged at two ends of the nickel-plated steel barrel and used for encapsulating the battery core in the nickel-plated steel barrel; the battery core comprises an anode pole piece, a cathode pole piece, a membrane and an electrolyte, the membrane is clamped between the anode pole piece and the cathode pole piece, and the anode pole piece, the cathode pole piece and the membrane are coiled to form a containing space for containing the electrolyte; two ends of the battery core are respectively an anode end and a cathode end; the two ends of the battery core are respectively an anode end and a cathode end, the anode end of the battery core is connected with the aluminum conducting disc, and the cathode end of the battery core is connected with the nickel conducting disc; the nickel conducting disc is connected with the cathode cap; the aluminum conducting disc is connected with the anode cap; and a first strip non-foil part without being coated with an anode active material and a second strip non-foil part without being coated with an anode active material are arranged on two sides of the anode pole piece. With the adoption of a special pole piece structure, the high-current charging and discharging performances of the lithium-ion battery can be improved.
Description
Technical field
The utility model relates to the lithium ion battery field, relates in particular to a kind of big capacity, high security ferric phosphate lithium cell.
Background technology
Lithium ion battery from nineteen ninety in Japanese Sony company by after the successful development, just with its operating voltage height (3.7V), specific energy height (80 ~ 140wh/kg), self-discharge rate low (5%/moon), memory-less effect and advantage such as environmentally friendly and be subjected to the generally favor of battery circle.Study on Li-ion batteries using and industrialization upsurge have worldwide been started.Because lithium ion battery has catered to communication and the fast development of information technology demand for development to battery miniaturization, lightweight, energetic, users at different levels are also climbed up and up to its demand.Japanese lithium ion battery sales volume reached 1,200,000,000 dollars in 1996, had surpassed the sales volume of MH-Ni battery and Ni-Cd battery.By 2002, lithium ion battery occupied absolute dominant position in small-sized secondary batteries.
But the maximization of lithium ion battery is limited by manufacturing process and fail safe always.
Lithium ion battery adopts the thin type polarizing electrode, collector adopts aluminium foil and Copper Foil, small-capacity cells such as mobile phone, notebook computer battery adopt monopole ear can satisfy instructions for use, and band lug winding process is a main flow production technology of present lithium rechargeable battery industry; But for big capacity, high-power type lithium rechargeable battery, because operating current is bigger, must adopt multipole ear technology, if reel again behind the first soldering polar ear, because the existence of pole piece thickness deviation, the position of lug behind coiling is difficult to consistent overlapping, and the also intractable that is connected of multipole ear and conduction pole.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The purpose of this utility model is to provide a kind of novel lithium ion battery, is intended to solve present lithium rechargeable battery product and the existing manufacturing difficult problem of production technology and defective.
The technical solution of the utility model is as follows:
A kind of lithium ion battery, comprise anodal block, the negative pole block, the aluminium conductive plate, the nickel conductive plate, the nickel plating steel cylinder, the electricity core, anodal block and negative pole block are arranged on the two ends of nickel plating steel cylinder, be used for electric core is encapsulated in the nickel plating steel cylinder, the electricity core comprises anode pole piece, cathode pole piece, barrier film, electrolyte, diaphragm clip is between anode pole piece and cathode pole piece, anode pole piece, cathode pole piece and membrane coil are held the receiving space of electrolyte around formation, the two ends of electricity core are respectively positive terminal and negative pole end, the positive terminal of electricity core is connected with the aluminium conductive plate, the negative pole end of electricity core is connected with the nickel conductive plate, the nickel conductive plate is connected with the negative pole block, the aluminium conductive plate is connected with anodal block, has empty paper tinsel position of article one bar shaped that does not apply positive electrode active materials and the empty paper tinsel of second bar shaped position in the both sides of anode pole piece.
Described lithium ion battery, wherein, the width at the empty paper tinsel of described article one bar shaped position is 0.20-1.0mm; The width at the empty paper tinsel of described second bar shaped position is 5.0-30mm.
The beneficial effects of the utility model: when coating active material coating, be not coated with the empty paper tinsel position of article one bar shaped of active material and the high rate during charging-discharging that lithium ion battery can be improved in the empty paper tinsel of second bar shaped position in the reservation of the both sides of anode pole piece; Reserve and to switch to coating when the empty paper tinsel of article one bar shaped position can avoid the rolling pole piece to cut and produce burr and material is fallen in the part, improve battery security; Reserving the empty paper tinsel of second bar shaped position can be convenient to many lugs that tape welding not connects and realize that high efficiency reels.
Description of drawings
Fig. 1 is the schematic diagram of the anode pole piece of the utility model embodiment lithium ion battery;
Fig. 2 is the utility model embodiment lithium ion battery slot rolling structural representation;
Fig. 3 is the structural representation after the utility model embodiment lithium ion battery seals.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, clear and definite, below the utility model is further described with reference to the accompanying drawing embodiment that develops simultaneously.
Big capacity of the present utility model, the high security column lithium ion battery, comprise anodal block, the negative pole block, the aluminium conductive plate, the nickel conductive plate, the nickel plating steel cylinder, the electricity core, anodal block and negative pole block are arranged on the two ends of nickel plating steel cylinder, be used for electric core is encapsulated in the nickel plating steel cylinder, the electricity core comprises anode pole piece, cathode pole piece, barrier film, electrolyte, diaphragm clip is between anode pole piece and cathode pole piece, anode pole piece, cathode pole piece and membrane coil are held the receiving space of electrolyte around formation, the two ends of electricity core are respectively positive terminal and negative pole end, the positive terminal of electricity core is connected with the aluminium conductive plate, the negative pole end of electricity core is connected with the nickel conductive plate, the nickel conductive plate is connected with the negative pole block, and the aluminium conductive plate is connected with anodal block.
Described anode pole piece and cathode pole piece adopt aluminium foil 2 and Copper Foil 6 to do collector respectively, as shown in Figure 1, be not coated with the empty paper tinsel position 8 of article one bar shaped and the empty paper tinsel of the second bar shaped position 9 of active material when coating active material coating in the reservation of the both sides of anode pole piece: the width at the empty paper tinsel of article one bar shaped position 8 is in the 0.20-1.0mm scope; The width at the empty paper tinsel of second bar shaped position 9 is in the 5.0-30mm scope.Accordingly, be not coated with the empty paper tinsel position of the 3rd bar shaped and the 4th the empty paper tinsel of bar shaped position of active material when coating active material coating in the reservation of the both sides of cathode pole piece: the width at the 3rd the empty paper tinsel of bar shaped position is in the 0.20-1.0mm scope; Article four, the width at the empty paper tinsel of bar shaped position is in the 5.0-30mm scope.
The effect of reserving the empty paper tinsel of article one bar shaped position 8 and the 3rd the empty paper tinsel of bar shaped position is to switch to coating and produce burr and material is fallen in the part when the rolling pole piece is cut, and improves battery security.Pole piece is cut the formation of burr and the high-hardness inorganic active material in the pole piece coating has much relations to the wearing and tearing of cutter, when adopting method of the present utility model, only divide when switching to pure aluminium foil or Copper Foil when cutting pole piece, wearing and tearing to cutter are very slight, above-mentioned burr can reduce greatly, therefore the fail safe that can improve high capacity cell.
The effect of reserving the empty paper tinsel of second bar shaped position 9 and the 4th the empty paper tinsel of bar shaped position is to be convenient to many lugs that tape welding not connects and to realize that high efficiency reels.Be in order to be connected with drawing at this position behind anode pole piece, barrier film, the cathode pole piece continuous reeling with collector body, anode pole piece and cathode pole piece draw the both sides that lay respectively at utmost point group with collector body, the empty paper tinsel end of anode pole piece adopts laser welding to be connected with aluminium conductive plate 11, and aluminium conductive plate 11 adopts laser welding to be connected with anodal block.Empty paper tinsel end of cathode pole piece and nickel conductive plate 21 adopt laser welding, and nickel conductive plate 21 adopts electric resistance welding to be connected with the negative pole block.Simultaneously, adopting being connected of conductive plate and the empty paper tinsel of bar shaped position, also is best current collection mode, helps heavy-current discharge.
Shown in Fig. 2, Fig. 3, adopt mechanical slot rolling technology at the two ends of nickel plating steel pipe 7, anodal, negative pole block adopts mechanical sealing mode sealing, and nickel plating steel pipe 7 is not charged.The both-end machinery slot rolling of nickel plating steel pipe 7, machinery seal, and have realized the production of high capacity lithium ion battery, have also increased the fail safe of high capacity lithium ion battery.
The beneficial effects of the utility model are:
When coating active material coating, reserve the special pole piece structure in the empty paper tinsel position 8 of article one bar shaped that is not coated with active material and the empty paper tinsel of second bar shaped position 9, can improve the high rate during charging-discharging of lithium ion battery in the both sides of anode pole piece.
High capacity cell of the present utility model refers in particular to rated capacity (1C) more than 5Ah, especially the above lithium rechargeable battery of 10Ah, comprise capacity type battery and high-power type battery in the high-capacity battery, the maximum discharge-rate of capacity type battery is below 2C, high-power type battery refers in particular to the high-power type battery of minimum discharge-rate more than 3C, according to concrete instructions for use, do suitable technology adjustment and both can produce the battery of pure high power capacity, also can produce high power capacity, the high-power battery that has both by method of the present utility model.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (2)
1. lithium ion battery, comprise anodal block, the negative pole block, the aluminium conductive plate, the nickel conductive plate, the nickel plating steel cylinder, the electricity core, anodal block and negative pole block are arranged on the two ends of nickel plating steel cylinder, be used for electric core is encapsulated in the nickel plating steel cylinder, the electricity core comprises anode pole piece, cathode pole piece, barrier film, electrolyte, diaphragm clip is between anode pole piece and cathode pole piece, anode pole piece, cathode pole piece and membrane coil are held the receiving space of electrolyte around formation, the two ends of electricity core are respectively positive terminal and negative pole end, the positive terminal of electricity core is connected with the aluminium conductive plate, the negative pole end of electricity core is connected with the nickel conductive plate, the nickel conductive plate is connected with the negative pole block, the aluminium conductive plate is connected with anodal block, it is characterized in that, has empty paper tinsel position of article one bar shaped that does not apply positive electrode active materials and the empty paper tinsel of second bar shaped position in the both sides of anode pole piece.
2. lithium ion battery according to claim 1 is characterized in that, the width at the empty paper tinsel of described article one bar shaped position is 0.20-1.0mm; The width at the empty paper tinsel of described second bar shaped position is 5.0-30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206503887U CN201927674U (en) | 2010-12-09 | 2010-12-09 | Lithium-ion battery comprising anode pole piece provided with strip non-foil parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206503887U CN201927674U (en) | 2010-12-09 | 2010-12-09 | Lithium-ion battery comprising anode pole piece provided with strip non-foil parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201927674U true CN201927674U (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206503887U Expired - Fee Related CN201927674U (en) | 2010-12-09 | 2010-12-09 | Lithium-ion battery comprising anode pole piece provided with strip non-foil parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201927674U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236546A (en) * | 2013-04-18 | 2013-08-07 | 徐敖奎 | Battery glued substrate and pole piece, and battery pole piece gluing and cutting process |
| CN112447938A (en) * | 2020-12-07 | 2021-03-05 | 苏州新中能源科技有限公司 | Cell structure of laminated lithium battery and manufacturing method thereof |
-
2010
- 2010-12-09 CN CN2010206503887U patent/CN201927674U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236546A (en) * | 2013-04-18 | 2013-08-07 | 徐敖奎 | Battery glued substrate and pole piece, and battery pole piece gluing and cutting process |
| CN112447938A (en) * | 2020-12-07 | 2021-03-05 | 苏州新中能源科技有限公司 | Cell structure of laminated lithium battery and manufacturing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| PD01 | Discharge of preservation of patent |
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| RINS | Preservation of patent right or utility model and its discharge | ||
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| RINS | Preservation of patent right or utility model and its discharge | ||
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| RINS | Preservation of patent right or utility model and its discharge | ||
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| RINS | Preservation of patent right or utility model and its discharge | ||
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| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |