CN206471419U - A kind of lithium coin cells with insulation protective jacket - Google Patents
A kind of lithium coin cells with insulation protective jacket Download PDFInfo
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- CN206471419U CN206471419U CN201621258984.4U CN201621258984U CN206471419U CN 206471419 U CN206471419 U CN 206471419U CN 201621258984 U CN201621258984 U CN 201621258984U CN 206471419 U CN206471419 U CN 206471419U
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- barrier film
- negative electrode
- electrolyte
- electrode casing
- protective jacket
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Abstract
The utility model discloses a kind of lithium coin cells with insulation protective jacket, belong to cell art, including negative electrode casing, anode cover, electrolyte liquid, anode electrolyte, both positive and negative polarity barrier film is provided between negative electrode casing and anode cover；Barrier film is provided between negative electrode casing and both positive and negative polarity barrier film; electrolyte liquid is arranged on barrier film; the top center of barrier film is provided with collector; collector is contacted with electrolyte liquid; and electrically connected with negative electrode casing; heat emission hole and electrolyte flow hole are provided with anode electrolyte; there is insulation protective jacket outside anode cover; insulation protective jacket and sealed insulation colloid integrated injection molding; anode cover and negative electrode casing are separated; negative electrode casing and barrier film are provided with steam vent, and electrolyte liquid is lithium-ion electrolyte, and anode electrolyte is manganese dioxide electrolyte.The utility model is connected firmly, and sealed insulation action effect is good, can not only avoid heat accumulation, can avoid button cell inflatable, leakage or even explode, improve security and battery life.
Description
Technical field
The utility model is related to a kind of lithium battery, more particularly to a kind of lithium coin cells with insulation protective jacket, category
In cell art.
Background technology
Button cell is also referred to as button cell, refers to that appearance and size, as the battery of a small button, is in general relatively large in diameter,
Thinner thickness (battery such as No. 5 AA relative to prismatic battery such as in the market), button cell is that battery is divided from profile
, equal corresponding cell classification has prismatic battery, rectangular cell, Special-shaped battery；Button cell is smaller because of the bodily form, therefore various
It is widely used in miniature electronic product, diameter is from 4.8mm to 30mm, and thickness is from 1.0mm to 7.7mm；Typically
For the back-up source of each electronic product, such as computer main board, electronic watch, electronic dictionary, electronic scale, remote control, electronic toy,
Pacemaker, electronic hearing aid, counter, camera etc..
Button cell is also classified into chemical cell and the major class of physical battery two, and the application of its chemical cell is the most universal.They by
Anode (positive pole), negative electrode (negative pole) and its electrolyte etc. are constituted.Its appearance is stainless steel material, and is used as positive pole, its negative pole
For the circular lid of stainless steel, there is sealing ring insulation between positive pole and negative pole, sealing ring is made of nylon, and sealing ring has removed insulating effect
Outside, moreover it is possible to prevent electrolyte from leaking.The species of button cell is a lot, and majority is named with material therefor, such as silver oxide cell, lithium electricity
Pond, alkaline manganese battery etc.；Lithium ion button shape cell exemplary operation electric current is in 0.1-0.2mA.It is highly stable using chemical property
Manganese dioxide be positive electrode, using specific energy very high lithium metal as negative material.The reduction of annual capacity is not more than
2%, storage life is long.Battery uses Semi-seal structure, uses safety.The Acclimation temperature scope of lithium ion button shape cell is larger
All can normal work under conditions of -20 to+60 degrees Celsius.Use is more in electronic dictionary, mainboard CMOS batteries, wrist-watch etc..
At present, lithium coin cells of the prior art easily occur electroplating uneven, coating during plating indium or be tin plating
It is not fine and close, have the poor plating problem such as long whisker after hole, easy scratch, easy to fall off, oxidizable, plating, in negative electrode casing poor plating
In the case of so that negative material is easily contacted and occurred with the metal of the low overpotential of hydrogen evolution such as the parent metal such as iron of negative electrode casing
Evolving hydrogen reaction, the hydrogen that evolving hydrogen reaction is produced causes button cell inflatable, leakage or even exploded；Lithium coin cells are in performance
On also there is a shortcoming, that is, battery especially after heavy load continuous discharge, often occurs in use
The phenomenon that serious inflatable is even exploded, and battery is in use, easily because other debris cause positive plate and negative pole
It is short-circuit between plate, influence battery life.
Utility model content
Main purpose of the present utility model is that there is provided one kind tool in order to solve above mentioned problem present in currently available technology
There are the lithium coin cells of insulation protective jacket.
The purpose of this utility model can reach by using following technical scheme：
A kind of lithium coin cells with insulation protective jacket, including negative electrode casing, anode cover, electrolyte liquid, anolyte
Liquid, it is characterised in that：The electrolyte liquid and the anode electrolyte are arranged on close by the negative electrode casing and the anode cover
Seal in the confined space formed, both positive and negative polarity barrier film is provided between the negative electrode casing and the anode cover；The negative electrode casing with it is described
Barrier film is provided between both positive and negative polarity barrier film, space, the barrier film are provided between the top of the barrier film and the negative electrode casing
For the seal isolation film with barrier film fixing end, the electrolyte liquid is arranged on the barrier film, in the barrier film
Top dead center position is provided with collector, and the lower surface of the collector contacts with the electrolyte liquid, the collector it is upper
Surface is electrically connected with the negative electrode casing；The anode electrolyte is arranged on close between the anode cover and the both positive and negative polarity barrier film
Seal in region, provided with least one heatsink transverse hole and at least one vertical heat emission hole in the sealing area, the transverse direction dissipates
Hot hole and the vertical heat emission hole be used for the heat that produces anode electrolyte in electrolytic process along the heatsink transverse hole and
The vertical heat emission hole is delivered to the anode cover surface, is radiated, and is electrolysed in the heatsink transverse hole provided with least one
Liquid flow orifice, the electrolyte flow hole is used to realize positive electrolyte flow；The anode cover and the negative electrode casing, it is described every
Separated from insulation is carried out by sealed insulation colloid between film；Insulation protective jacket is arranged with outside the anode cover, the insulation is protected
Integrated injection molding between sheath and the sealed insulation colloid, the insulation protective jacket is integrally noted with the sealed insulation colloid
It is moulded into after type and separates the anode cover and the negative electrode casing, the insulation protective jacket is used to prevent the anode cover and described negative
It is short-circuit between the shell of pole；The side of the negative electrode casing and the barrier film is provided with the steam vent of insertion, and the steam vent is used for knob
The hydrogen discharge produced during evolving hydrogen reaction occurs for button inside battery；The bottom of the anode cover is provided with arc lead angle, the arc
Lead angle is used to prevent the lithium coin cells from deforming.
Further, the space between the top of the barrier film and the negative electrode casing is carried out close by sealed insulation colloid
Envelope.
Further, the bottom of the negative electrode casing is fitted and sealed with the barrier film fixing end, the bottom of the negative electrode casing
End is provided with arc bent angle.
Further, the barrier film fixing end is provided with upward vertical bent angle, the arc bent angle of the negative electrode casing bottom
It is arranged in the vertical bent angle.
Further, be tightly connected between the both positive and negative polarity barrier film and the anode cover, the both positive and negative polarity barrier film with it is described
The lower surface laminating of barrier film.
Further, the sealed insulation colloid is sealed insulation nylon.
Further, the heatsink transverse hole and the aperture of the vertical heat emission hole are 1.0~1.5mm.
Further, the aperture in the electrolyte flow hole is the heatsink transverse hole and the vertical heat emission hole aperture
3~5 times.
Further, the electrolyte liquid is lithium-ion electrolyte, and anode electrolyte is manganese dioxide electrolyte.
Further, the aperture of the steam vent is 0.2~0.5mm.
Advantageous effects of the present utility model：
1st, a kind of lithium coin cells with insulation protective jacket of the utility model design, simple in construction, by negative pole
Steam vent is provided with shell and barrier film, the hydrogen produced when occurring evolving hydrogen reaction inside button cell can be discharged, it is to avoid
Accumulated gases make button cell inflatable, leakage or even exploded inside button cell, further improve the security that product is used；
2nd, the utility model design a kind of lithium coin cells with insulation protective jacket, by barrier film, collector and
Insulation protective jacket, effectively can separate negative electrode casing and anode cover insulation, and ensure that negative material and negative electrode casing keep isolation point
Open, be prevented effectively from negative material and negative electrode casing contact and product inflatable, leakage or even the phenomenon exploded is occurred, prevented safety
Hidden danger, the security that product is used is more preferably；
3rd, a kind of lithium coin cells with insulation protective jacket of the utility model design, by heatsink transverse hole and vertically
Heat emission hole, transversely heat emission hole and vertical heat emission hole are delivered to just the heat that can produce anode electrolyte in electrolytic process
Pole shell surface is radiated, and effectively prevent the accumulation of energy of anode electrolyte in use, influences battery life；
4th, a kind of lithium coin cells with insulation protective jacket of the utility model design, pass through the arc of negative electrode casing bottom
The vertical bent angle of bent angle and barrier film fixing end, can be effectively increased the fastness of negative electrode casing and barrier film connection, and anode cover
Insulation is carried out by sealed insulation colloid to separate, can effectively reach the effect of sealed insulation between negative electrode casing, barrier film.
Brief description of the drawings
Fig. 1 is the lithium coin cells sectional view that the utility model has insulation protective jacket.
In figure：1- negative electrode casings, 2- anode covers, 3- electrolyte liquid, 4- anode electrolytes, 5- barrier films, 6- collectors, 7-
Sealed insulation colloid, 8- steam vents, 9- barrier film fixing ends, 10- both positive and negative polarity barrier films, 11- heatsink transverses hole, 12- vertically radiates
Hole, 13- electrolyte flows hole, 14- insulation protective jackets.
Embodiment
To make those skilled in the art more clear and clear and definite the technical solution of the utility model, with reference to embodiment and
Accompanying drawing is described in further detail to the utility model, but embodiment not limited to this of the present utility model.
As shown in figure 1, a kind of lithium coin cells with insulation protective jacket, including negative electrode casing 1, anode cover 2, electrolyte
Liquid 3, anode electrolyte 4, it is characterised in that：The electrolyte liquid 3 and the anode electrolyte 4 are arranged on by the negative electrode casing
1 and the anode cover 2 sealing formed confined space in, between the negative electrode casing 1 and the anode cover 2 be provided with both positive and negative polarity barrier film
10；Barrier film 5, top and the negative electrode casing of the barrier film 5 are provided between the negative electrode casing 1 and the both positive and negative polarity barrier film 10
Space is provided between 1, the barrier film 5 is the seal isolation film with barrier film fixing end 9, and the electrolyte liquid 3 is set
In the barrier film 5, collector 6, the lower surface of the collector 6 and institute are provided with the top dead center position of the barrier film 5
State electrolyte liquid 3 to contact, the upper surface of the collector 6 is electrically connected with the negative electrode casing 1；The anode electrolyte 4 is set
It is horizontal provided with least one in the sealing area in sealing area between the anode cover 2 and the both positive and negative polarity barrier film 10
To heat emission hole 11 and at least one vertical heat emission hole 12, the heatsink transverse hole 11 and the vertical heat emission hole 12 are used for positive pole
The heat that electrolyte 4 is produced in electrolytic process along the heatsink transverse hole 11 and the vertical heat emission hole 12 be delivered to it is described just
The surface of pole shell 2, is radiated, and at least one electrolyte flow hole 13, the electrolyte stream are provided with the heatsink transverse hole 11
Dynamic hole 13 is used to realize positive electrolyte flow；Pass through sealing between the anode cover 2 and the negative electrode casing 1, the barrier film 5
Insulation colloid 7 carries out insulation and separated；Be arranged with insulation protective jacket 14 outside the anode cover 2, the insulation protective jacket 14 with it is described
Integrated injection molding between sealed insulation colloid 7, the insulation protective jacket 14 and the integrated injection molding of sealed insulation colloid 7
The anode cover 2 and the negative electrode casing 1 are separated afterwards, the insulation protective jacket 14 is used to prevent the anode cover 2 and described negative
It is short-circuit between pole shell 1；The side of the negative electrode casing 1 and the barrier film 5 is provided with the steam vent 8 of insertion, and the steam vent 8 is used for
By the hydrogen discharge produced when occurring evolving hydrogen reaction inside button cell；The bottom of the anode cover 2 is provided with arc lead angle, described
Arc lead angle is used to prevent the lithium coin cells from deforming.
Further, as shown in figure 1, the space between the top of the barrier film 5 and the negative electrode casing 1 is exhausted by sealing
Edge colloid 7 is sealed, and the bottom of the negative electrode casing 1 is fitted and sealed with the barrier film fixing end 9, the negative electrode casing 1
Bottom is provided with arc bent angle, and the barrier film fixing end 9 is provided with upward vertical bent angle, the curved bend of the bottom of negative electrode casing 1
Angle is arranged in the vertical bent angle, is tightly connected between the both positive and negative polarity barrier film 10 and the anode cover 2, the both positive and negative polarity every
Film 10 is fitted with the lower surface of the barrier film 5.
Further, the sealed insulation colloid 7 is sealed insulation nylon, the heatsink transverse hole 11 and described vertical is dissipated
The aperture of hot hole 12 is 1.0~1.5mm, and the aperture in the electrolyte flow hole 13 is the heatsink transverse hole 11 and described perpendicular
To 3~5 times of the aperture of heat emission hole 12, the electrolyte liquid 3 is lithium-ion electrolyte, and anode electrolyte 4 is manganese dioxide electricity
Liquid is solved, the aperture of the steam vent 8 is 0.2~0.5mm.
In summary, the present embodiment provide a kind of lithium coin cells with insulation protective jacket, it is simple in construction, by
Steam vent is provided with negative electrode casing and barrier film, the hydrogen produced when occurring evolving hydrogen reaction inside button cell can be discharged,
Avoid accumulated gases from making button cell inflatable, leakage inside button cell or even explode, further improve the peace that product is used
Quan Xing；By barrier film, collector and insulation protective jacket, effectively negative electrode casing and anode cover insulation can be separated, and ensure negative
Pole material and negative electrode casing keep isolation to separate, and are prevented effectively from negative material and negative electrode casing contact and product inflatable, leakage is occurred
Even the phenomenon of blast, has prevented potential safety hazard, the security that product is used is more preferably；Pass through heatsink transverse hole and vertical radiating
Hole, transversely heat emission hole and vertical heat emission hole are delivered to anode cover to the heat that can produce anode electrolyte in electrolytic process
Surface is radiated, and effectively prevent the accumulation of energy of anode electrolyte in use, influences battery life；Pass through negative pole
The arc bent angle of shell bottom and the vertical bent angle of barrier film fixing end, can be effectively increased negative electrode casing and barrier film connection it is firm
Property, and separated between anode cover and negative electrode casing, barrier film by the progress insulation of sealed insulation colloid, it can effectively reach that sealing is exhausted
The effect of edge.
It is described above, only the utility model preferred embodiment, but protection domain of the present utility model is not limited to
This, any one skilled in the art is in scope disclosed in the utility model, according to skill of the present utility model
Art scheme and its design are subject to equivalent substitution or change, belong to protection domain of the present utility model.
Claims (10)
1. a kind of lithium coin cells with insulation protective jacket, including negative electrode casing (1), anode cover (2), electrolyte liquid (3), just
Pole electrolyte (4), it is characterised in that：The electrolyte liquid (3) and the anode electrolyte (4) are arranged on by the negative electrode casing
(1) and in the confined space of the anode cover (2) sealing formation, provided with just between the negative electrode casing (1) and the anode cover (2)
Negative electrode membrane (10)；Barrier film (5), the barrier film (5) are provided between the negative electrode casing (1) and the both positive and negative polarity barrier film (10)
Top and the negative electrode casing (1) between be provided with space, the barrier film (5) be the sealing with barrier film fixing end (9) every
From film, the electrolyte liquid (3) is arranged on the barrier film (5), and collection is provided with the top dead center position of the barrier film (5)
Electric body (6), the lower surface of the collector (6) is contacted with the electrolyte liquid (3), the upper surface of the collector (6) with
Negative electrode casing (1) electrical connection；The anode electrolyte (4) is arranged on the anode cover (2) and the both positive and negative polarity barrier film (10)
Between sealing area in, at least one heatsink transverse hole (11) and at least one vertical heat emission hole are provided with the sealing area
(12), the heatsink transverse hole (11) and the vertical heat emission hole (12) are used to produce anode electrolyte (4) in electrolytic process
Raw heat is delivered to the anode cover (2) surface along the heatsink transverse hole (11) and the vertical heat emission hole (12), carries out
At least one electrolyte flow hole (13) is provided with radiating, the heatsink transverse hole (11), the electrolyte flow hole (13) is used
In realizing positive electrolyte flow；It is exhausted by sealing between the anode cover (2) and the negative electrode casing (1), the barrier film (5)
Edge colloid (7) carries out insulation and separated；Insulation protective jacket (14), the insulation protective jacket (14) are arranged with outside the anode cover (2)
The integrated injection molding between the sealed insulation colloid (7), the insulation protective jacket (14) and the sealed insulation colloid (7)
The anode cover (2) and the negative electrode casing (1) are separated after integrated injection molding, the insulation protective jacket (14) is used to prevent institute
State short-circuit between anode cover (2) and the negative electrode casing (1)；The side of the negative electrode casing (1) and the barrier film (5) is provided with insertion
Steam vent (8), the steam vent (8) is used for the hydrogen discharge produced when will occur evolving hydrogen reaction inside button cell；It is described
The bottom of anode cover (2) is provided with arc lead angle, and the arc lead angle is used to prevent the lithium coin cells from deforming.
2. a kind of lithium coin cells with insulation protective jacket according to claim 1, it is characterised in that：The barrier film
(5) space between top and the negative electrode casing (1) is sealed by sealed insulation colloid (7).
3. a kind of lithium coin cells with insulation protective jacket according to claim 1, it is characterised in that：The negative electrode casing
(1) bottom is fitted and sealed with the barrier film fixing end (9), and the bottom of the negative electrode casing (1) is provided with arc bent angle.
4. a kind of lithium coin cells with insulation protective jacket according to claim 3, it is characterised in that：The barrier film
Fixing end (9) is arranged in the vertical bent angle provided with upward vertical bent angle, the arc bent angle of negative electrode casing (1) bottom.
5. a kind of lithium coin cells with insulation protective jacket according to claim 1, it is characterised in that：The both positive and negative polarity
It is tightly connected between barrier film (10) and the anode cover (2), the both positive and negative polarity barrier film (10) and the lower surface of the barrier film (5)
Laminating.
6. a kind of lithium coin cells with insulation protective jacket according to claim 1, it is characterised in that：The sealing is exhausted
Edge colloid (7) is sealed insulation nylon.
7. a kind of lithium coin cells with insulation protective jacket according to claim 1, it is characterised in that：The transverse direction dissipates
The aperture of hot hole (11) and the vertical heat emission hole (12) is 1.0~1.5mm.
8. a kind of lithium coin cells with insulation protective jacket according to claim 1, it is characterised in that：The electrolyte
The aperture of flow orifice (13) is 3~5 times of the heatsink transverse hole (11) and the vertical heat emission hole (12) aperture.
9. a kind of lithium coin cells with insulation protective jacket according to claim 1, it is characterised in that：The negative electricity
It is lithium-ion electrolyte to solve liquid (3), and anode electrolyte (4) is manganese dioxide electrolyte.
10. a kind of lithium coin cells with insulation protective jacket according to claim 1, it is characterised in that：The exhaust
The aperture in hole (8) is 0.2~0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258984.4U CN206471419U (en) | 2016-11-23 | 2016-11-23 | A kind of lithium coin cells with insulation protective jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258984.4U CN206471419U (en) | 2016-11-23 | 2016-11-23 | A kind of lithium coin cells with insulation protective jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206471419U true CN206471419U (en) | 2017-09-05 |
Family
ID=59709964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621258984.4U Expired - Fee Related CN206471419U (en) | 2016-11-23 | 2016-11-23 | A kind of lithium coin cells with insulation protective jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206471419U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224054A (en) * | 2020-01-19 | 2020-06-02 | 深圳市言九电子科技有限公司 | Quick-charging type high-capacity button battery |
| CN111477791A (en) * | 2020-03-31 | 2020-07-31 | 惠州市恒泰科技股份有限公司 | Button cell |
| CN113013525A (en) * | 2021-03-08 | 2021-06-22 | 张家港希弗新能源科技有限公司 | Lithium carbon fluoride battery |
-
2016
- 2016-11-23 CN CN201621258984.4U patent/CN206471419U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111224054A (en) * | 2020-01-19 | 2020-06-02 | 深圳市言九电子科技有限公司 | Quick-charging type high-capacity button battery |
| CN111477791A (en) * | 2020-03-31 | 2020-07-31 | 惠州市恒泰科技股份有限公司 | Button cell |
| CN113013525A (en) * | 2021-03-08 | 2021-06-22 | 张家港希弗新能源科技有限公司 | Lithium carbon fluoride battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 Termination date: 20191123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |