CN203205493U - Button-type lithium-ion battery with spring-type battery cell support - Google Patents
Button-type lithium-ion battery with spring-type battery cell support Download PDFInfo
- Publication number
- CN203205493U CN203205493U CN2013201303572U CN201320130357U CN203205493U CN 203205493 U CN203205493 U CN 203205493U CN 2013201303572 U CN2013201303572 U CN 2013201303572U CN 201320130357 U CN201320130357 U CN 201320130357U CN 203205493 U CN203205493 U CN 203205493U
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- battery core
- spring
- battery cell
- core support
- conductor
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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 utility model discloses a button-type lithium-ion battery with a spring-type battery cell support and belongs to the technical field of lithium-ion batteries. The button-type lithium-ion battery is internally provided with the spring-type battery cell support capable of reliably contacting the positive conductor and the negative conductor of a battery cell with a metal shell-cover; the both ends of the spring-type battery cell support are the positive conductor spring-abutting end and the negative conductor spring-abutting end of the battery cell respectively, the negative spring-butt end is used for abutting the negative conductor against a metal cover body, and the positive spring-butt end is used for abutting the positive conductor against a metal shell body; anti-slipping-off hooks are arranged at the front ends of the spring-abutting ends of the spring-type battery cell support, so that the conductors of the battery cell are not easy to slip off after being sleeved.
Description
Technical field
The utility model belongs to technical field of lithium ion, is specifically related to the lithium-ion button battery internal structure.
Technical background
Along with electronic apparatus miniaturization, developing rapidly aspect microminiaturized, obtained using widely as the button cell of supporting power supply.Specification requirement is high, cost is high, the present work that also is difficult to penetration and promotion because the recycling after primary cell uses is one, develops so the research and development of secondary button cell and produce just to seem important and urgent.
Lithium-ion button battery is the class that cost is lower in the present secondary button cell, technology is relatively ripe, but because the volume of button cell is little, the inner space is very limited, existing internal structure technology nearly all is that the basis from a button cell develops and improves, and therefore also has many problem and shortage restricting battery performance and battery production efficient.
The annexation of battery core both positive and negative polarity and button cell shell, lid is to reliability and the discharge performance of battery.The connectivity scenario (mode) of lithium-ion button battery product both positive and negative polarity and shell, lid mainly contains following several at present:
1, natural pressing connects.Design the size (thickness) of battery core, anodal exit conductor is placed the bottom of battery core, the top that negative pole exit conductor places battery core, battery core both positive and negative polarity exit conductor is contacted with the pressing of cap nature.These class methods are imitateed primary cell, and advantage is simple, convenient production.Because the electrolyte in the secondary cell is non-conductor, the volume of battery core has certain variation when discharging and recharging, thereby so that both positive and negative polarity exit conductor and cap contact are inconsistent, the shortcoming that this class connects is the poor reliability that connects, internal resistance of cell size is unstable, discharging current is little, homogeneity of product is poor, and percent defective is high.
2, conducting resinl connects.This method is substantially identical with natural pressing contact, and different is to coat conducting resinl at the inner face of button cell shell and lid.Advantage is to connect reliable, good product consistency.Shortcoming one is to increase auxiliary material and operation, the 2nd, cause the reaction of inside battery generation adverse chemical.
3, collector connects.These class methods are that the another kind to natural pressing contact improves, and it is cushioning one deck collector between both positive and negative polarity exit conductor and shell, lid (the common wire netting of use, the special foam metal sheet of using), makes to have between them more reliably to contact.Advantage is to have increased connection reliability.Shortcoming one is the inner space that has taken the button cell preciousness, has reduced the capacity of battery, the 2nd, increase auxiliary material and operation.
4, be welded to connect.This method is with the shell of battery core both positive and negative polarity exit conductor welding, lid inboard.Advantage is to connect reliably, and shortcoming is complex process, and production cost is high, efficient is low, generally is this method that adopts when making the battery of high request and special purpose.
It is worthy of note especially, above-mentioned first and second kinds of methods are that the reliability that both positive and negative polarity exit conductor is connected with cap is based upon on the basis that the battery core body is pushed, thereby affected the reversible reaction of charging/discharging of secondary cell, shorten the cycle life of battery, worsened the security performance of battery.
Summary of the invention
The utility model is the fastening lithium ionic cell with spring battery core support.This fastening lithium ionic cell arranges the spring battery core support that both positive and negative polarity electric conductor and cap are reliably contacted between battery core and metal cap.Described spring battery core support negative pole end is resisted against the negative pole electric conductor on the lid, and battery core support positive terminal is resisted against cathode conductor on the housing; Spring battery core support physical efficiency make-up shape battery core plays the support protective effect.
It is characterized in that, spring battery core support is a special spring that places between button cell cap and the battery core, two ends are respectively battery core both positive and negative polarity electric conductor bullet by end, bullet has mousing-hook by the end front end, after being inserted in, the electric core conductive body is difficult for slippage, one end leans the battery core cathode conductor on the inboard of crown cap, and the other end leans the anodal conductor of battery core on the inboard of metal-back; Simultaneously, spring battery core support physical efficiency make-up shape battery core plays the support protective effect.The material of spring battery core support adopts the insulating material with better toughness and plasticity.See accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4.
Its innovation is:
(1) utilize the elasticity of spring, the both positive and negative polarity electric conductor with lithium-ion electric core leans on button cell metal-back and crown cap inboard respectively, has increased the reliability of conduct electrical energy.
(2) spring support physical efficiency rises battery core and supports and protective effect, is conducive to carrying out smoothly of battery charge and discharge process.
Concrete structure of the present utility model is provided by the following drawings and execution mode.
Description of drawings
1, accompanying drawing 1 is spring battery core support vertical view;
2, accompanying drawing 2 is spring battery core bracket side view;
3, accompanying drawing 3 is the battery core spring battery core support figure that packs into;
4, accompanying drawing 4 is for having the fastening lithium ionic cell cutaway view of spring battery core support.
Wherein: 1 is that spring battery core support negative pole electric conductor bullet is by end; 2 is that spring battery core support cathode conductor bullet is by end; 3 is spring battery core support; 4 is battery core negative pole electric conductor; 5 is the battery core cathode conductor; 6 is battery core; 7 is the button cell shell; 8 are the button cell lid.
Embodiment
The production method of fastening lithium ionic cell that the utlity model has spring battery core support is basic identical with general fastening lithium ionic cell, and different is making and the battery core mount support that has increased the battery core support.
Embodiment is as follows:
One, the battery core support is produced.The battery core support is selected the insulating material with better toughness and plasticity, this material not with battery in various material generation bad reactions.Material is made such as Fig. 1, Fig. 2, spring battery core support shown in Figure 3.The two ends of this spring battery core support are respectively battery core both positive and negative polarity bullet by end, and bullet is by holding front end that mousing-hook is arranged, and are difficult for slippage after the electric core conductive body is inserted in, and see accompanying drawing 1.
Two, produce in the usual way fastening lithium ionic cell shell, lid.
Three, make the fastening lithium ionic cell battery core, battery core comprises anodal matrix (aluminium foil), anodal active mixture, barrier film, negative pole matrix (Copper Foil), negative electrode active mixture.Battery core builds up with folding mode.Wherein anodal matrix (aluminium foil) reserves wide 4mm, long 10mm as cathode conductor 4; Negative pole matrix (Copper Foil) reserves wide 4mm, long 10mm as negative pole electric conductor 5.
Four, the battery core that folds is packed into spring battery core support.During dress battery core 6 negative pole electric conductor 4 is inserted in spring battery core support bullet by end 1; Cathode conductor 5 is inserted in spring battery core support bullet by end 2.
Five, battery assembling.With button cell shell, the assembling of integrated battery core, add electrolyte respectively, add again button cell cap seal mouth, finish the assembling of fastening lithium ionic cell.
Six, discharge and recharge grouping system, make the finished product warehouse-in after recharging.
Claims (3)
1. the fastening lithium ionic cell that has spring battery core support, the spring battery core support that battery core positive and negative electrode electric conductor and metal cap are reliably contacted is set in this fastening lithium ionic cell, described spring battery core support two ends are respectively battery core both positive and negative polarity electric conductor bullet by end, the negative pole bullet is resisted against the negative pole electric conductor on the metal cap body by end, and anodal bullet is resisted against cathode conductor on the metal shell by end.
2. the fastening lithium ionic cell with spring battery core support as claimed in claim 1 is characterized in that, spring battery core support bullet has mousing-hook by the end front end, is difficult for slippage after the electric core conductive body is inserted in.
3. the fastening lithium ionic cell with spring battery core support as claimed in claim 1 is characterized in that, the material of described spring battery core support adopts the insulating material with better toughness and plasticity to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201303572U CN203205493U (en) | 2013-03-12 | 2013-03-12 | Button-type lithium-ion battery with spring-type battery cell support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201303572U CN203205493U (en) | 2013-03-12 | 2013-03-12 | Button-type lithium-ion battery with spring-type battery cell support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203205493U true CN203205493U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201303572U Expired - Fee Related CN203205493U (en) | 2013-03-12 | 2013-03-12 | Button-type lithium-ion battery with spring-type battery cell support |
Country Status (1)
| Country | Link |
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| CN (1) | CN203205493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702998A (en) * | 2014-11-25 | 2016-06-22 | 江苏永昌新能源科技有限公司 | Lithium battery assembling method |
-
2013
- 2013-03-12 CN CN2013201303572U patent/CN203205493U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702998A (en) * | 2014-11-25 | 2016-06-22 | 江苏永昌新能源科技有限公司 | Lithium battery assembling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20140312 |