CN206610880U - A kind of lithium ion battery - Google Patents
A kind of lithium ion battery Download PDFInfo
- Publication number
- CN206610880U CN206610880U CN201720331047.5U CN201720331047U CN206610880U CN 206610880 U CN206610880 U CN 206610880U CN 201720331047 U CN201720331047 U CN 201720331047U CN 206610880 U CN206610880 U CN 206610880U
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- China
- Prior art keywords
- battery
- lithium ion
- ion battery
- protection board
- positive
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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
-
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of lithium ion battery; including battery core, battery cap and protection board; the periphery of the block is cylindrical; core convexes to form mounting groove; the protection board is built in the battery cap; anode ear, the first negative electrode lug are provided with one end of the battery core, the protection board is connected with the anode ear and the first negative electrode lug of the battery core respectively；The other end of the battery core is additionally provided with the second negative electrode lug, and the shell of battery is welded to one with the battery core by second negative electrode lug.The lithium ion battery for carrying protection circuit that the utility model is provided; battery carries protection circuit in itself; even if short-circuited outside; the protection circuit may act as a switch; battery can be effectively protected, the probability for occurring security incident is reduced, it is safe and simple in construction; production efficiency is high, is widely used in the technical field of battery safety device.
Description
Technical field
The utility model is related to the technical field of battery safety device, specially a kind of lithium-ion electric for carrying protection circuit
Pond.
Background technology
PTC:Positive Temperature Coefficient abbreviation, means positive temperature coefficient, refers to
Positive temperature coefficient very big semi-conducting material or component.Usual PTC refers to semistor, abbreviation PTC temperature-sensitives
Resistance.
Due to the development of portable type electronic product, rechargeable lithium ion battery possesses high voltage, high power capacity with it, repeatable made
With, the characteristic such as security good, self discharge is small, quickly-chargeable, it is widely used.However, due to lithium ion battery energy
Metric density is high, overcharging, cross put, excessively stream, short circuit and superhigh temperature discharge and recharge, low temperature excessively is in use, be easily damaged.Therefore, existing
Lithium ion battery all install battery protecting plate additional, with protect lithium ion battery battery core protect interface.Lithium ion battery installs guarantor additional
The conventional design method of backplate has two kinds.A kind of is to install protection board additional end to end or sideways in battery, and another is to protect
Circuit is positioned over the inside of battery.However, in former mode, because protection board needs to occupy certain space, so as to can change
The shape of battery, or reduce the capacity of battery.In latter approach, protection board will not only occupy battery core inner space, reduce
Battery capacity, electrolyte can also produce corrosion to the metal on protection board, need to be sealed off with special material, if will protect
Backplate is placed on the inside of battery, and because electrolyte is liquid, the lug of battery may be connected with output end by electrolyte, meeting
Protection board is caused to protect, but battery pole ear and output end be not the problem of be fully disconnected, thus, protection circuit is positioned over
The mode of the inside of battery, not only production difficulty is big, and yield rate is relatively low and product has larger potential safety hazard.
Existing cylindrical battery, it is necessary to applying protective sheet carry out discharge and recharge protection, it is necessary to by positive pole by nickel strap across
Battery core side connects protection board negative pole end, or needs protection board being placed on positive pole, and nickel sheet, connection are drawn from the spot welding of battery core bottom
Drawn to one end of protection board, and by the other end of protection board, be connected at bottom and do a hardware contact output, this structure
Positive pole nickel strap is needed across battery core surface, and there is nickel strap burr and puncture battery core exterior insulation sleeve pipe causes the hidden danger of short circuit, and
Structure is extremely complex, low production efficiency.It is therefore desirable to be improved.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of lithium-ion electric for carrying protection circuit
Pond.
The technical scheme that the utility model is used is：
The utility model provides a kind of lithium ion battery, including battery core, battery cap and protection board, it is characterised in that institute
The periphery for stating block is cylindrical, and core convexes to form mounting groove, and the protection board is built in the battery cap,
One end of the battery core is provided with anode ear, the first negative electrode lug, and the protection board is negative with the anode ear of the battery core and first respectively
Lug is connected；The other end of the battery core is additionally provided with the second negative electrode lug, and the shell of battery is negative by described second with the battery core
Lug is welded to one.
As the improvement of the technical scheme, the protection board is provided with hole, for exhaust of radiating.
As the improvement of the technical scheme, it is additionally provided with below the protection board on PTC, the PTC and is additionally provided with nickel
Band.
As the improvement of the technical scheme, both positive and negative polarity switching piece component, wherein positive pole are provided between the battery core and PTC
Material is aluminium, and negative material is to be insulated between nickel, both positive and negative polarity by teething ring, the both positive and negative polarity switching piece component respectively with it is described
Anode ear and the first negative pole lug welding.
Further, it is additionally provided with blast resistance construction on the both positive and negative polarity switching piece component.
Further, the battery is additionally provided with cushion rubber, and the cushion rubber is located at battery core and the both positive and negative polarity switching piece inter-module.
Further, nickel strap and aluminium strip, the nickel strap are additionally provided with the anode ear and the first negative electrode lug of the battery core
Aluminium strip periphery is provided with the cushion rubber.
Further, the shape of the nickel strap and aluminium strip includes rectangular-shape.
Further, the lithium ion battery is shaped as cylinder.
The beneficial effects of the utility model are：The lithium ion battery for carrying protection circuit that the utility model is provided, battery
Itself carries protection circuit, even if short-circuited outside, and the protection circuit may act as a switch, can effectively protect battery, reduces
Occurs the probability of security incident, safe and simple in construction, production efficiency is high.
Brief description of the drawings
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is the explosive view of the embodiment of the utility model one；
Fig. 2 is the structural representation of the protection board of the embodiment of the utility model one；
Fig. 3 is the schematic diagram of the protection board of another embodiment of the utility model；
Fig. 4 is the structural representation of the both positive and negative polarity switching piece component of the embodiment of the utility model one；
Fig. 5 is the structural representation of the both positive and negative polarity switching piece component of another embodiment of the utility model.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
The utility model provides a kind of lithium ion battery, including battery core, battery cap and protection board, it is characterised in that institute
The periphery for stating block is cylindrical, and core convexes to form mounting groove, and the protection board is built in the battery cap,
One end of the battery core is provided with anode ear, the first negative electrode lug, and the protection board is negative with the anode ear of the battery core and first respectively
Lug is connected；The other end of the battery core is additionally provided with the second negative electrode lug, and the shell of battery is negative by described second with the battery core
Lug is welded to one.
As the improvement of the technical scheme, the protection board is provided with hole, for exhaust of radiating.
As the improvement of the technical scheme, it is additionally provided with below the protection board on PTC, the PTC and is additionally provided with nickel
Band.
As the improvement of the technical scheme, both positive and negative polarity switching piece component, wherein positive pole are provided between the battery core and PTC
Material is aluminium, and negative material is to be insulated between nickel, both positive and negative polarity by teething ring, the both positive and negative polarity switching piece component respectively with it is described
Anode ear and the first negative pole lug welding.
Further, it is additionally provided with blast resistance construction on the both positive and negative polarity switching piece component.
Further, the battery is additionally provided with cushion rubber, and the cushion rubber is located at battery core and the both positive and negative polarity switching piece inter-module.
Further, nickel strap and aluminium strip, the nickel strap are additionally provided with the anode ear and the first negative electrode lug of the battery core
Aluminium strip periphery is provided with the cushion rubber.
Further, the shape of the nickel strap and aluminium strip includes rectangular-shape.
Further, the lithium ion battery is shaped as cylinder.
Reference picture 1, is the explosive view of the embodiment of the utility model one.A kind of lithium ion battery, including battery core 2, battery cover
Cap 13 and protection board 12, the periphery of the block 13 are cylindrical, and core is convexed to form in mounting groove, the protection board 12
It is placed in the battery cap 13, anode ear 5, the first negative electrode lug 4,12 points of the protection board is provided with one end of the battery core 2
It is not connected with the negative electrode lug 4 of anode ear 5 and first of the battery core 2；The other end of the battery core 2 is additionally provided with the second negative electrode lug 3, electricity
The shell 1 in pond is welded to one with the battery core 2 by second negative electrode lug 3.It is used as a preferred embodiment, the shell 1
For box hat.
12 are provided with hole on wherein described protection board, for exhaust of radiating.
It is additionally provided with the lower section of the protection board 12 on PTC10, the PTC10 and is additionally provided with nickel strap 11.
Both positive and negative polarity switching piece component 9 is provided between the battery core 2 and PTC10, the both positive and negative polarity switching piece component 9 is distinguished
With the positive and negative tab welding.
Wherein described both positive and negative polarity switching piece component 9 can be both positive and negative polarity aluminium flake.
Blast resistance construction is additionally provided with the both positive and negative polarity switching piece component 9.
Cushion rubber 6 is additionally provided between the battery core 2 and PTC10, the cushion rubber 6 is located at battery core 2 and transferred with the both positive and negative polarity
Between piece component 9.
Nickel strap 8 and aluminium strip 7 are additionally provided with the cushion rubber 6.
The shape of the nickel strap 8 and aluminium strip 7 includes rectangular-shape.
The lithium ion battery is shaped as cylinder.
Reference picture 2, is the structural representation of the protection board of the embodiment of the utility model one.12 are provided with hole on the protection board
14, for exhaust of radiating.It is preferred that, the hole 14 includes circular hole, square hole etc., using engraved structure so that accelerate protection board
And the radiating of battery.
Reference picture 3, is the schematic diagram of the protection board of another embodiment of the utility model.The negative straps 15 of protection board with
The negative pole of positive and negative switching piece component connects to form loop.The protection board is provided with hole, for exhaust of radiating.It is preferred that, institute
Stating hole includes circular hole, square hole etc., using engraved structure so that accelerate the radiating of protection board and battery.
Reference picture 4, is the structural representation of the both positive and negative polarity switching piece component of the embodiment of the utility model one.The both positive and negative polarity
Blast resistance construction 16 is provided with switching piece component.The connection protection board of negative pole 17 of both positive and negative polarity switching piece component.The blast resistance construction
16 in cell operations, the characteristic for possessing the around explosive mixture of not igniting.The blast resistance construction 16 includes spring knot
The explosion-protection equipment of structure, explosion-protection equipment with explosion-proof pin etc..
Reference picture 5, is the structural representation of the both positive and negative polarity switching piece component of another embodiment of the utility model.It is described positive and negative
The negative pole 18 of pole switching piece component and its positive and negative electrodes in same end of positive pole 19, are respectively welded the positive and negative lug.
The cylindrical battery, the protection board of battery is built in the block of cylindrical battery, the position of the block of battery outwardly
For the output end of protection board, protection circuit control anode together with shell is spoted weld with negative electrode lug, is exported as negative pole, will
Battery roll core both positive and negative polarity is connected on protection board by the aluminium flake of block.So, cylindrical battery carries protection circuit in itself, even if
Short-circuited outside, also can effectively protect battery, reduce the probability for occurring security incident.
The lithium ion battery for carrying protection circuit that the utility model is provided, battery carries protection circuit in itself, even if outside
Short circuit occurs for portion, and the protection circuit may act as a switch, can effectively protect battery, reduces the probability for occurring security incident, safety
And it is simple in construction, production efficiency is high.
Above is preferable implementation of the present utility model is illustrated, but the invention is not limited to the reality
Example is applied, those skilled in the art can also make a variety of equivalent changes on the premise of without prejudice to the utility model spirit
Shape or replacement, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (9)
1. a kind of lithium ion battery, including battery core, battery cap and protection board, it is characterised in that the periphery of the block is in circle
Column, core convexes to form mounting groove, and the protection board is built in the battery cap, is set in one end of the battery core
There are anode ear, the first negative electrode lug, the protection board is connected with the anode ear and the first negative electrode lug of the battery core respectively；The battery core
The other end be additionally provided with the second negative electrode lug, the shell of battery is welded to one with the battery core by second negative electrode lug.
2. lithium ion battery according to claim 1, it is characterised in that：The protection board is provided with hole, for row of radiating
Gas.
3. lithium ion battery according to claim 1 or 2, it is characterised in that：It is additionally provided with below the protection board
Nickel strap is additionally provided with PTC, the PTC.
4. lithium ion battery according to claim 3, it is characterised in that：Both positive and negative polarity is provided between the battery core and PTC
Switching piece component, wherein positive electrode are aluminium, and negative material is to be insulated between nickel, both positive and negative polarity by teething ring, the both positive and negative polarity
Switching piece component respectively with the anode ear and the first negative pole lug welding.
5. lithium ion battery according to claim 4, it is characterised in that：Also set up on the both positive and negative polarity switching piece component
There is blast resistance construction.
6. lithium ion battery according to claim 5, it is characterised in that：The battery is additionally provided with cushion rubber, the cushion rubber position
In battery core and the both positive and negative polarity switching piece inter-module.
7. lithium ion battery according to claim 6, it is characterised in that：In the anode ear and the first negative electrode lug of the battery core
On be additionally provided with nickel strap and aluminium strip, nickel strap and the aluminium strip periphery is provided with the cushion rubber.
8. lithium ion battery according to claim 7, it is characterised in that：The shape of the nickel strap and aluminium strip includes rectangular
Body shape.
9. lithium ion battery according to claim 8, it is characterised in that：The lithium ion battery is shaped as cylinder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017202742077 | 2017-03-20 | ||
| CN201720274207 | 2017-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206610880U true CN206610880U (en) | 2017-11-03 |
Family
ID=60173819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720331047.5U Active CN206610880U (en) | 2017-03-20 | 2017-03-30 | A kind of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206610880U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193036A (en) * | 2018-08-31 | 2019-01-11 | 浙江锂特安能源科技有限公司 | A kind of chargeable AAA lithium battery of adjustable voltage |
| CN110137393A (en) * | 2019-05-09 | 2019-08-16 | 广东因奥新能源科技有限公司 | A kind of battery cap component and battery |
| CN113708022A (en) * | 2021-08-21 | 2021-11-26 | 深圳市日升质电子科技有限公司 | Lithium battery with charging protection function |
-
2017
- 2017-03-30 CN CN201720331047.5U patent/CN206610880U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193036A (en) * | 2018-08-31 | 2019-01-11 | 浙江锂特安能源科技有限公司 | A kind of chargeable AAA lithium battery of adjustable voltage |
| CN109193036B (en) * | 2018-08-31 | 2020-07-31 | 浙江锂特安能源科技有限公司 | Rechargeable AAA lithium battery with adjustable voltage |
| CN110137393A (en) * | 2019-05-09 | 2019-08-16 | 广东因奥新能源科技有限公司 | A kind of battery cap component and battery |
| CN113708022A (en) * | 2021-08-21 | 2021-11-26 | 深圳市日升质电子科技有限公司 | Lithium battery with charging protection function |
| CN113708022B (en) * | 2021-08-21 | 2023-09-22 | 深圳市日升质电子科技有限公司 | Lithium battery with charging protection function |
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| GR01 | Patent grant | ||
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