CN107425152A - One kind automatically powers off explosion-proof lithium battery lamina tecti and application - Google Patents
One kind automatically powers off explosion-proof lithium battery lamina tecti and application Download PDFInfo
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- CN107425152A CN107425152A CN201710839044.7A CN201710839044A CN107425152A CN 107425152 A CN107425152 A CN 107425152A CN 201710839044 A CN201710839044 A CN 201710839044A CN 107425152 A CN107425152 A CN 107425152A
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- Prior art keywords
- pole
- negative pole
- connection sheet
- positive
- positive pole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/392—Arrangements for facilitating escape of gases with means for neutralising or absorbing electrolyte; with means for preventing leakage of electrolyte through vent holes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/581—Devices or arrangements for the interruption of current in response to temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
Abstract
One kind provided by the invention automatically powers off plastics on explosion-proof lithium battery lamina tecti, including substrate, top plate, negative pole, plastics, negative pole sealing ring, positive pole sealing ring, negative pole pole, Positive Poles, negative insulation plate, positive pole insulation board, negative pole leader, positive pole leader, auto-power-off device, multistage explosion-protection equipment on positive pole.The lithium battery top cap plate cost is cheap, easy to use, safe.
Description
Technical field
The invention belongs to electrokinetic cell field, more particularly to one kind automatically powers off explosion-proof lithium battery lamina tecti and application.
Background technology
At present, with increasingly miniaturization, lighting and the Portable belt of electronic product, such as video camera, notebook and hand
Machine etc., the driving power of these electronic products also develop towards high power capacity, high security and the direction of lighting, lithium battery with
The good characteristics such as its high power capacity, are widely used in electronic product.Lithium battery includes housing, cover plate and battery core etc., wherein
Battery core is placed in the inside of housing, and the upper end of housing has upper end open, and cover plate is then enclosed in the opening of the upper end of housing, then passes through
Pole on the cover board is formed, then lithium battery and outside electronic component can be electrically connected with, realize power supply.Lithium battery makes
Used time can produce abnormal gas because of the factor such as battery charger failure and undue charging as inside battery chemically reacts, and cause electricity
Pond internal pressure is excessive, so as to which battery explosion accident occur.However, poor reliability be present in the existing anti-overshoot safety cover plate of battery,
It is complicated under pressure-resistant scope, the weak point such as processing request height.
There is the drawbacks of certain in existing lithium battery cover plate, it is impossible to when battery electric quantity reaches saturation, make electricity when in use
Pond internal break consumption electric energy, it is impossible to gas caused by inside when absorbing battery overshoot, and battery air tightness can not be increased, it is difficult
To prevent ambient atmos from entering, battery explosion may be triggered, user is damaged, brought during use it is certain not
Profit influences, therefore, a kind of it is proposed that safety cover plate for preventing that lithium battery from overcharging.
The content of the invention
Technical problem：In order to solve the defects of prior art, the invention provides one kind to automatically power off explosion-proof lithium battery top
Cover plate.
Technical scheme：One kind provided by the invention automatically powers off explosion-proof lithium battery lamina tecti, including substrate, top plate, negative pole
Plastics, negative pole sealing ring, positive pole sealing ring, negative pole pole, Positive Poles, negative insulation plate, positive pole insulation on upper plastics, positive pole
Plate, negative pole leader, positive pole leader, auto-power-off device, multistage explosion-protection equipment；
The top plate is fixed on substrate；The negative pole pole sequentially pass through negative pole sealing ring, substrate, top plate, on negative pole
Plastics；The Positive Poles sequentially pass through positive pole sealing ring, substrate, top plate, plastics on positive pole；The negative pole pole bottom is provided with
Negative insulation plate, Positive Poles bottom are provided with positive pole insulation board, and negative insulation plate and positive pole insulation board are individually fixed in from dynamic circuit breaker
At the top of electric installation, negative pole leader, positive pole leader are individually fixed in auto-power-off device bottom；The multistage explosion-protection equipment is located at base
In the middle part of plate, top plate；
The auto-power-off device includes connection sheet, negative pole under connection sheet, negative pole on housing, negative pole end air inlet, negative pole
Middle connection sheet, positive terminal air inlet, connection sheet, the negative pole end air inlet in connection sheet, positive pole under connection sheet, positive pole on positive pole
Located at the end of housing and close to negative pole pole, the positive terminal air inlet is located at the end of housing and close to Positive Poles；Institute
State that connection sheet on negative pole is connected with negative pole pole, connection sheet is connected with negative pole leader under negative pole, connection sheet both ends are solid in negative pole
Determine portion, middle part is depressed part, fixed part is fixed in housing, and depressed part is abutted against with connection sheet under connection sheet, negative pole on negative pole；Institute
State that connection sheet on positive pole is connected with Positive Poles, connection sheet is connected with positive pole leader under positive pole, connection sheet both ends are solid in positive pole
Determine portion, middle part is depressed part, fixed part is fixed in housing, and depressed part is abutted against with connection sheet under connection sheet, positive pole on positive pole, and
Connection sheet is respectively arranged on connection sheet on negative pole, connection sheet rear on positive pole in connection sheet, positive pole along airintake direction negative pole；
The multistage explosion-protection equipment includes explosion-proof tank and the top cover being sequentially arranged in from top to bottom in explosion-proof tank, dividing plate, bottom
Lid, the top cover are provided with one group of through hole, and the second venthole is provided with the middle part of the dividing plate, the first outlet is provided with the middle part of the bottom
Hole, is provided with rupture pressure disc between the top cover, dividing plate, second venthole is provided with the second cover plate, on first venthole
Provided with the first cover plate, spine is provided with the top of second cover plate, the both ends of first cover plate are fixed part, middle part is depression
Portion, the end of the fixed part are fixed between substrate, top plate, are connected between the depressed part and the second cover plate by elastomeric element
Connect.
As an improvement, be respectively equipped with screw thread in the negative pole pole, Positive Poles, plastics on the negative pole, moulded on positive pole
Material is provided with the screw thread coordinated with negative pole pole, Positive Poles.
Improved as another kind, fixed part and the depressed part junction is provided with upper groove.
Present invention also offers a kind of multistage explosion-protection equipment for lithium battery, the multistage explosion-protection equipment includes explosion-proof tank
And top cover, dividing plate, bottom in explosion-proof tank are sequentially arranged in from top to bottom, the top cover is provided with one group of through hole, the dividing plate
Middle part is provided with the second venthole, is provided with the first venthole in the middle part of the bottom, rupture pressure disc, institute are provided between the top cover, dividing plate
State the second venthole and be provided with the second cover plate, first venthole is provided with the first cover plate, is provided with the top of second cover plate
Spine, the both ends of first cover plate are fixed part, middle part is depressed part, and substrate, top are fixed in the end of the fixed part
Between plate, connected between the depressed part and the second cover plate by elastomeric element.
As an improvement, the fixed part and depressed part junction are provided with upper groove.
Present invention also offers a kind of auto-power-off device for lithium battery, including housing, negative pole end air inlet, negative pole
Connection sheet in connection sheet, negative pole under upper connection sheet, negative pole, positive terminal air inlet, connection sheet under connection sheet, positive pole on positive pole, just
Extremely middle connection sheet, the negative pole end air inlet are located at located at the end of housing and close to negative pole pole, the positive terminal air inlet
The end of housing and close Positive Poles；Connection sheet is connected with negative pole pole on the negative pole, connection sheet and negative pole draw under negative pole
Piece is connected, in negative pole connection sheet both ends be fixed part, middle part be depressed part, fixed part is fixed in housing, depressed part and negative pole
Connection sheet is abutted against under upper connection sheet, negative pole；Connection sheet is connected with Positive Poles on the positive pole, connection sheet and positive pole draw under positive pole
Piece is connected, in positive pole connection sheet both ends be fixed part, middle part be depressed part, fixed part is fixed in housing, depressed part and positive pole
Connection sheet is abutted against under upper connection sheet, positive pole, and connection sheet is respectively arranged on negative pole in connection sheet, positive pole along airintake direction negative pole
Connection sheet rear in connection sheet, positive pole.
Present invention also offers a kind of anti-explosion safety lithium battery, including housing, coordinate with housing lamina tecti, located at housing
The imbibition room of bottom；
The lamina tecti include substrate, top plate, plastics on negative pole, plastics on positive pole, negative pole sealing ring, positive pole sealing ring,
Negative pole pole, Positive Poles, negative insulation plate, positive pole insulation board, negative pole leader, positive pole leader, auto-power-off device, multistage are anti-
Quick-fried device；
The top plate is fixed on substrate；The negative pole pole sequentially pass through negative pole sealing ring, substrate, top plate, on negative pole
Plastics；The Positive Poles sequentially pass through positive pole sealing ring, substrate, top plate, plastics on positive pole；The negative pole pole bottom is provided with
Negative insulation plate, Positive Poles bottom are provided with positive pole insulation board, and negative insulation plate and positive pole insulation board are individually fixed in from dynamic circuit breaker
At the top of electric installation, negative pole leader, positive pole leader are individually fixed in auto-power-off device bottom；The multistage explosion-protection equipment is located at base
In the middle part of plate, top plate；
The auto-power-off device includes connection sheet, negative pole under connection sheet, negative pole on housing, negative pole end air inlet, negative pole
Middle connection sheet, positive terminal air inlet, connection sheet, the negative pole end air inlet in connection sheet, positive pole under connection sheet, positive pole on positive pole
Located at the end of housing and close to negative pole pole, the positive terminal air inlet is located at the end of housing and close to Positive Poles；Institute
State that connection sheet on negative pole is connected with negative pole pole, connection sheet is connected with negative pole leader under negative pole, connection sheet both ends are solid in negative pole
Determine portion, middle part is depressed part, fixed part is fixed in housing, and depressed part is abutted against with connection sheet under connection sheet, negative pole on negative pole；Institute
State that connection sheet on positive pole is connected with Positive Poles, connection sheet is connected with positive pole leader under positive pole, connection sheet both ends are solid in positive pole
Determine portion, middle part is depressed part, fixed part is fixed in housing, and depressed part is abutted against with connection sheet under connection sheet, positive pole on positive pole, and
Connection sheet is respectively arranged on connection sheet on negative pole, connection sheet rear on positive pole in connection sheet, positive pole along airintake direction negative pole；
The multistage explosion-protection equipment includes explosion-proof tank and the top cover being sequentially arranged in from top to bottom in explosion-proof tank, dividing plate, bottom
Lid, the top cover are provided with one group of through hole, and the second venthole is provided with the middle part of the dividing plate, the first outlet is provided with the middle part of the bottom
Hole, is provided with rupture pressure disc between the top cover, dividing plate, second venthole is provided with the second cover plate, on first venthole
Provided with the first cover plate, spine is provided with the top of second cover plate, the both ends of first cover plate are fixed part, middle part is depression
Portion, the end of the fixed part are fixed between substrate, top plate, are connected between the depressed part and the second cover plate by elastomeric element
Connect；
Room is communicated between the housing and imbibition room, from upper and be provided with barrier film and breaking plant, institute in communication chamber
Loop device is stated brokenly to pierce provided with vertex (vertices) provided with one group of through hole, top.
As an improvement, be respectively equipped with screw thread in the negative pole pole, Positive Poles, plastics on the negative pole, moulded on positive pole
Material is provided with the screw thread coordinated with negative pole pole, Positive Poles.
Improved as another kind, fixed part and the depressed part junction is provided with upper groove.
Beneficial effect：Lithium battery top cap plate cost provided by the invention is cheap, easy to use, safe.
Brief description of the drawings
Fig. 1 is the explosive view that the present invention automatically powers off explosion-proof lithium battery lamina tecti.
Fig. 2 is the side view that the present invention automatically powers off explosion-proof lithium battery lamina tecti.
Fig. 3 is the structural representation of explosion-protection equipment.
Fig. 4 is the partial enlarged drawing of explosion-protection equipment.
Fig. 5 is the structural representation of anti-explosion safety lithium battery.
Embodiment
Explosion-proof lithium battery lamina tecti is automatically powered off to the present invention below to further illustrate.
Embodiment 1
Explosion-proof lithium battery lamina tecti is automatically powered off, sees plastics 3 on Fig. 1 to 4, including substrate 1, top plate 2, negative pole, on positive pole
It is plastics 4, negative pole sealing ring 5, positive pole sealing ring 6, negative pole pole 7, Positive Poles 8, negative insulation plate 9, positive pole insulation board 10, negative
Pole leader 11, positive pole leader 12, auto-power-off device 13, multistage explosion-protection equipment 14；
Top plate 2 is fixed on substrate 1；Negative pole pole 7 sequentially passes through negative pole sealing ring 5, substrate 1, top plate 2, moulded on negative pole
Material 3；Positive Poles 8 sequentially pass through positive pole sealing ring 6, substrate 1, top plate 2, plastics 4 on positive pole；The bottom of negative pole pole 7 is provided with negative
Pole insulation board 9, the bottom of Positive Poles 8 are provided with positive pole insulation board 10, and negative insulation plate 9 and positive pole insulation board 10 are individually fixed in certainly
The top of dynamic circuit breaker electric installation 13, negative pole leader 11, positive pole leader 12 are individually fixed in the bottom of auto-power-off device 13；Multistage explosion-proof dress
14 are put located at substrate 1, the middle part of top plate 2；
Auto-power-off device 13 includes connection sheet under connection sheet 17, negative pole on housing 15, negative pole end air inlet 16, negative pole
18th, connection sheet 19 in negative pole, positive terminal air inlet 20, connection sheet in connection sheet 22, positive pole under connection sheet 21, positive pole on positive pole
23, negative pole end air inlet 16 is located at the end of housing 15 located at the end of housing 15 and close to negative pole pole 7, positive terminal air inlet 20
Portion and close Positive Poles 8；On negative pole connection sheet 17 be connected with negative pole pole 7, connection sheet 18 and the phase of negative pole leader 11 under negative pole
Even, in negative pole the both ends of connection sheet 19 be fixed part 24, middle part be depressed part 25, fixed part 24 is fixed in housing 15, depressed part
25 are abutted against with connection sheet 18 under connection sheet on negative pole 17, negative pole；Connection sheet 21 is connected with Positive Poles 8, connected under positive pole on positive pole
Contact pin 22 is connected with positive pole leader 12, in positive pole the both ends of connection sheet 23 be fixed part 24, middle part be depressed part 25, fixed part 24 is solid
Due in housing 15, depressed part 25 is abutted against with connection sheet 22 under connection sheet on positive pole 21, positive pole, and connects along airintake direction negative pole
Connection sheet 23 is respectively arranged on connection sheet 17 on negative pole, the rear of connection sheet 21 on positive pole in contact pin 19, positive pole；
Multistage explosion-protection equipment 14 includes explosion-proof tank 26 and the top cover 27, the dividing plate that are sequentially arranged in from top to bottom in explosion-proof tank 26
28th, bottom 29, top cover 27 are provided with one group of through hole, and the middle part of dividing plate 28 is provided with the second venthole 38, and the middle part of bottom 29 is provided with first
Venthole 37, is provided with rupture pressure disc 30 between top cover 27, dividing plate 28, the second venthole 38 is provided with the second cover plate 31, the first outlet
Hole 37 is provided with the first cover plate 32, and the top of the second cover plate 31 is provided with spine 35, the both ends of the first cover plate 32 be fixed part 33, in
Portion is depressed part 34, and the end of fixed part 33 is fixed between substrate 1, top plate 2, is passed through between the cover plate 31 of depressed part 34 and second
Elastomeric element 36 connects.
It is respectively equipped with screw thread on negative pole pole 7, Positive Poles 8, plastics 3 on negative pole, plastics 4 are provided with and negative pole on positive pole
The screw thread that pole 7, Positive Poles 8 coordinate.
Fixed part 33 and the junction of depressed part 34 are provided with upper groove 39.
Embodiment 2
Anti-explosion safety lithium battery, is shown in Fig. 5, including housing 200, coordinate with housing 200 lamina tecti 100, located at housing 200
The imbibition room 300 of bottom；
Lamina tecti 100 includes substrate 1, top plate 2, plastics 3 on negative pole, plastics 4, negative pole sealing ring 5, positive pole sealing on positive pole
Circle 6, negative pole pole 7, Positive Poles 8, negative insulation plate 9, positive pole insulation board 10, negative pole leader 11, positive pole leader 12, from dynamic circuit breaker
Electric installation 13, multistage explosion-protection equipment 14；It is respectively equipped with screw thread on negative pole pole 7, Positive Poles 8, plastics 3 on negative pole, on positive pole
Plastics 4 are provided with the screw thread coordinated with negative pole pole 7, Positive Poles 8.
Top plate 2 is fixed on substrate 1；Negative pole pole 7 sequentially passes through negative pole sealing ring 5, substrate 1, top plate 2, moulded on negative pole
Material 3；Positive Poles 8 sequentially pass through positive pole sealing ring 6, substrate 1, top plate 2, plastics 4 on positive pole；The bottom of negative pole pole 7 is provided with negative
Pole insulation board 9, the bottom of Positive Poles 8 are provided with positive pole insulation board 10, and negative insulation plate 9 and positive pole insulation board 10 are individually fixed in certainly
The top of dynamic circuit breaker electric installation 13, negative pole leader 11, positive pole leader 12 are individually fixed in the bottom of auto-power-off device 13；Multistage explosion-proof dress
14 are put located at substrate 1, the middle part of top plate 2；
Auto-power-off device 13 includes connection sheet under connection sheet 17, negative pole on housing 15, negative pole end air inlet 16, negative pole
18th, connection sheet 19 in negative pole, positive terminal air inlet 20, connection sheet in connection sheet 22, positive pole under connection sheet 21, positive pole on positive pole
23, negative pole end air inlet 16 is located at the end of housing 15 located at the end of housing 15 and close to negative pole pole 7, positive terminal air inlet 20
Portion and close Positive Poles 8；On negative pole connection sheet 17 be connected with negative pole pole 7, connection sheet 18 and the phase of negative pole leader 11 under negative pole
Even, in negative pole the both ends of connection sheet 19 be fixed part 24, middle part be depressed part 25, fixed part 24 is fixed in housing 15, depressed part
25 are abutted against with connection sheet 18 under connection sheet on negative pole 17, negative pole；Connection sheet 21 is connected with Positive Poles 8, connected under positive pole on positive pole
Contact pin 22 is connected with positive pole leader 12, in positive pole the both ends of connection sheet 23 be fixed part 24, middle part be depressed part 25, fixed part 24 is solid
Due in housing 15, depressed part 25 is abutted against with connection sheet 22 under connection sheet on positive pole 21, positive pole, and connects along airintake direction negative pole
Connection sheet 23 is respectively arranged on connection sheet 17 on negative pole, the rear of connection sheet 21 on positive pole in contact pin 19, positive pole；
Multistage explosion-protection equipment 14 includes explosion-proof tank 26 and the top cover 27, the dividing plate that are sequentially arranged in from top to bottom in explosion-proof tank 26
28th, bottom 29, top cover 27 are provided with one group of through hole, and the middle part of dividing plate 28 is provided with the second venthole 38, and the middle part of bottom 29 is provided with first
Venthole 37, is provided with rupture pressure disc 30 between top cover 27, dividing plate 28, the second venthole 38 is provided with the second cover plate 31, the first outlet
Hole 37 is provided with the first cover plate 32, and the top of the second cover plate 31 is provided with spine 35, the both ends of the first cover plate 32 be fixed part 33, in
Portion is depressed part 34, and the end of fixed part 33 is fixed between substrate 1, top plate 2, is passed through between the cover plate 31 of depressed part 34 and second
Elastomeric element 36 connects；Fixed part 33 and the junction of depressed part 34 are provided with upper groove 39；
Room 301 is communicated between housing 200 and imbibition room 300, from upper and be provided with the He of barrier film 302 in communication chamber 301
Breaking plant 303, break loop device 303 and be provided with one group of through hole, top provided with vertex (vertices) thorn 304.
The operation principle of the present invention：
(1) material of Electolyte-absorptive is filled in the imbibition room 300 of battery bottom, when inside battery generation is short-circuit or other
Situation causes gas first when temperature rise, air pressure rise to jack up barrier film 302, and barrier film 302 contacts vertex (vertices) and pierces 304, punctures barrier film
302, so that electrolyte is flowed into imbibition room 300, avoid temperature from further raising；
(2) it is first when short circuit occurs for inside battery or other situations cause temperature further to raise, air pressure further raises
First gas jack up connection sheet 19 in negative pole connection sheet 19 is separated with connection sheet 18 under connection sheet on negative pole 17, negative pole,
Jacking up connection sheet 23 in positive pole makes connection sheet 23 in positive pole be separated with connection sheet 22 under connection sheet on positive pole 21, positive pole, so as to real
Now automatically power off protection；
(3) when short circuit occurs for inside battery or other situations cause temperature further to raise, air pressure further raises, gas
Body jacks up the first cover plate 32, portion gas is entered in explosion-proof tank 26, when bottom air pressure is very high, elastic components contract arrives
Bottom, cause the second cover plate 31 to be jacked up, spine 35 is punctured rupture pressure disc 30, gas is gone out battery, so as to play explosion-proof work
With.
Claims (9)
1. one kind automatically powers off explosion-proof lithium battery lamina tecti, it is characterised in that：Including plastics on substrate (1), top plate (2), negative pole
(3), plastics (4), negative pole sealing ring (5), positive pole sealing ring (6), negative pole pole (7), Positive Poles (8), negative pole are exhausted on positive pole
Listrium (9), positive pole insulation board (10), negative pole leader (11), positive pole leader (12), auto-power-off device (13), multistage explosion-proof dress
Put (14)；
The top plate (2) is fixed on substrate (1)；The negative pole pole (7) sequentially pass through negative pole sealing ring (5), substrate (1),
Plastics (3) on top plate (2), negative pole；The Positive Poles (8) sequentially pass through positive pole sealing ring (6), substrate (1), top plate (2), just
Extremely upper plastics (4)；Negative pole pole (7) bottom is provided with negative insulation plate (9), and Positive Poles (8) bottom is insulated provided with positive pole
Plate (10), negative insulation plate (9) and positive pole insulation board (10) are individually fixed at the top of auto-power-off device (13), negative pole leader
(11), positive pole leader (12) is individually fixed in auto-power-off device (13) bottom；The multistage explosion-protection equipment (14) is located at substrate
(1), in the middle part of top plate (2)；The auto-power-off device (13) on housing (15), negative pole end air inlet (16), negative pole including connecting
Connection sheet (19) in connection sheet (18), negative pole under piece (17), negative pole, positive terminal air inlet (20), connection sheet (21) on positive pole, just
Extremely descend connection sheet (23) in connection sheet (22), positive pole, the negative pole end air inlet (16) is located at the end of housing (15) and close
Negative pole pole (7), the positive terminal air inlet (20) is located at the end of housing (15) and close to Positive Poles (8)；The negative pole
Upper connection sheet (17) is connected with negative pole pole (7), connection sheet (18) is connected with negative pole leader (11) under negative pole, connection sheet in negative pole
(19) both ends be fixed part (24), middle part be depressed part (25), fixed part (24) is fixed in housing (15), depressed part (25) with
Connection sheet (18) is abutted against under connection sheet (17), negative pole on negative pole；On the positive pole connection sheet (21) be connected with Positive Poles (8),
Connection sheet (22) is connected with positive pole leader (12) under positive pole, and connection sheet (23) both ends are fixed part (24), middle part to be recessed in positive pole
Fall into portion (25), fixed part (24) is fixed in housing (15), depressed part (25) and connection sheet under connection sheet (21), positive pole on positive pole
(22) it is abutted against, and connection sheet (23) is respectively arranged on connection sheet on negative pole in connection sheet (19), positive pole along airintake direction negative pole
(17), connection sheet (21) rear on positive pole；
The multistage explosion-protection equipment (14) includes explosion-proof tank (26) and the top cover being sequentially arranged in from top to bottom in explosion-proof tank (26)
(27), dividing plate (28), bottom (29), the top cover (27) are provided with one group of through hole, gone out in the middle part of the dividing plate (28) provided with second
Stomata (38), bottom (29) middle part are provided with the first venthole (37), are provided between the top cover (27), dividing plate (28) explosion-proof
Film (30), second venthole (38) are provided with the second cover plate (31), and first venthole (37) is provided with the first cover plate
(32), be provided with spine (35) at the top of second cover plate (31), the both ends of first cover plate (32) be fixed part (33), in
Portion is depressed part (34), and the end of the fixed part (33) is fixed between substrate (1), top plate (2), the depressed part (34) and
Connected between second cover plate (31) by elastomeric element (36).
2. one kind according to claim 1 automatically powers off explosion-proof lithium battery lamina tecti, it is characterised in that：The negative pole pole
(7), it is respectively equipped with screw thread in Positive Poles (8), plastics (3) on the negative pole, plastics (4) are provided with and negative pole pole on positive pole
(7), the screw thread that Positive Poles (8) coordinate.
3. one kind according to claim 1 automatically powers off explosion-proof lithium battery lamina tecti, it is characterised in that：The fixed part
(33) and depressed part (34) junction is provided with upper groove (39).
A kind of 4. multistage explosion-protection equipment for lithium battery, it is characterised in that：The multistage explosion-protection equipment (14) includes explosion-proof tank
(26) top cover (27), dividing plate (28), the bottom (29) and being from top to bottom sequentially arranged in explosion-proof tank (26), the top cover (27)
One group of through hole is provided with, the second venthole (38) is provided with the middle part of the dividing plate (28), is gone out in the middle part of the bottom (29) provided with first
Stomata (37), is provided with rupture pressure disc (30) between the top cover (27), dividing plate (28), second venthole (38) is provided with second
Cover plate (31), first venthole (37) are provided with the first cover plate (32), spine are provided with the top of second cover plate (31)
(35), the both ends of first cover plate (32) be fixed part (33), middle part be depressed part (34), the end of the fixed part (33)
Portion is fixed between substrate (1), top plate (2), passes through elastomeric element (36) between the depressed part (34) and the second cover plate (31)
Connection.
A kind of 5. multistage explosion-protection equipment for lithium battery according to claim 4, it is characterised in that：The fixed part
(33) and depressed part (34) junction is provided with upper groove (39).
A kind of 6. auto-power-off device for lithium battery, it is characterised in that：Including housing (15), negative pole end air inlet (16),
Connection sheet (19) in connection sheet (18), negative pole under connection sheet (17), negative pole on negative pole, positive terminal air inlet (20), connect on positive pole
Connection sheet (23) in connection sheet (22), positive pole under contact pin (21), positive pole, the negative pole end air inlet (16) is located at housing (15)
End and close negative pole pole (7), the positive terminal air inlet (20) is located at the end of housing (15) and close to Positive Poles
(8)；Connection sheet (17) is connected with negative pole pole (7) on the negative pole, connection sheet (18) is connected with negative pole leader (11) under negative pole,
In negative pole connection sheet (19) both ends be fixed part (24), middle part be depressed part (25), fixed part (24) is fixed in housing (15),
Depressed part (25) is abutted against with connection sheet (18) under connection sheet on negative pole (17), negative pole；Connection sheet (21) and positive pole on the positive pole
Connection sheet (22) is connected with positive pole leader (12) under pole (8) connection, positive pole, and connection sheet (23) both ends are fixed part in positive pole
(24), middle part is depressed part (25), and fixed part (24) is fixed in housing (15), depressed part (25) and connection sheet on positive pole
(21), connection sheet (22) is abutted against under positive pole, and connection sheet (23) is set respectively in connection sheet (19), positive pole along airintake direction negative pole
In connection sheet (21) rear on connection sheet on negative pole (17), positive pole.
A kind of 7. anti-explosion safety lithium battery, it is characterised in that：The lamina tecti coordinated including housing (200), with housing (200)
(100), located at the imbibition room (300) of housing (200) bottom；
The lamina tecti (100) includes substrate (1), top plate (2), plastics (3) on negative pole, plastics (4), negative pole sealing ring on positive pole
(5), positive pole sealing ring (6), negative pole pole (7), Positive Poles (8), negative insulation plate (9), positive pole insulation board (10), negative pole draw
Piece (11), positive pole leader (12), auto-power-off device (13), multistage explosion-protection equipment (14)；
The top plate (2) is fixed on substrate (1)；The negative pole pole (7) sequentially pass through negative pole sealing ring (5), substrate (1),
Plastics (3) on top plate (2), negative pole；The Positive Poles (8) sequentially pass through positive pole sealing ring (6), substrate (1), top plate (2), just
Extremely upper plastics (4)；Negative pole pole (7) bottom is provided with negative insulation plate (9), and Positive Poles (8) bottom is insulated provided with positive pole
Plate (10), negative insulation plate (9) and positive pole insulation board (10) are individually fixed at the top of auto-power-off device (13), negative pole leader
(11), positive pole leader (12) is individually fixed in auto-power-off device (13) bottom；The multistage explosion-protection equipment (14) is located at substrate
(1), in the middle part of top plate (2)；The auto-power-off device (13) on housing (15), negative pole end air inlet (16), negative pole including connecting
Connection sheet (19) in connection sheet (18), negative pole under piece (17), negative pole, positive terminal air inlet (20), connection sheet (21) on positive pole, just
Extremely descend connection sheet (23) in connection sheet (22), positive pole, the negative pole end air inlet (16) is located at the end of housing (15) and close
Negative pole pole (7), the positive terminal air inlet (20) is located at the end of housing (15) and close to Positive Poles (8)；The negative pole
Upper connection sheet (17) is connected with negative pole pole (7), connection sheet (18) is connected with negative pole leader (11) under negative pole, connection sheet in negative pole
(19) both ends be fixed part (24), middle part be depressed part (25), fixed part (24) is fixed in housing (15), depressed part (25) with
Connection sheet (18) is abutted against under connection sheet (17), negative pole on negative pole；On the positive pole connection sheet (21) be connected with Positive Poles (8),
Connection sheet (22) is connected with positive pole leader (12) under positive pole, and connection sheet (23) both ends are fixed part (24), middle part to be recessed in positive pole
Fall into portion (25), fixed part (24) is fixed in housing (15), depressed part (25) and connection sheet under connection sheet (21), positive pole on positive pole
(22) it is abutted against, and connection sheet (23) is respectively arranged on connection sheet on negative pole in connection sheet (19), positive pole along airintake direction negative pole
(17), connection sheet (21) rear on positive pole；
The multistage explosion-protection equipment (14) includes explosion-proof tank (26) and the top cover being sequentially arranged in from top to bottom in explosion-proof tank (26)
(27), dividing plate (28), bottom (29), the top cover (27) are provided with one group of through hole, gone out in the middle part of the dividing plate (28) provided with second
Stomata (38), bottom (29) middle part are provided with the first venthole (37), are provided between the top cover (27), dividing plate (28) explosion-proof
Film (30), second venthole (38) are provided with the second cover plate (31), and first venthole (37) is provided with the first cover plate
(32), be provided with spine (35) at the top of second cover plate (31), the both ends of first cover plate (32) be fixed part (33), in
Portion is depressed part (34), and the end of the fixed part (33) is fixed between substrate (1), top plate (2), the depressed part (34) and
Connected between second cover plate (31) by elastomeric element (36)；
Be communicated with room (301) between the housing (200) and imbibition room (300), in communication chamber (301) from it is upper and be provided with every
Film (302) and breaking plant (303), the broken loop device (303) is provided with one group of through hole, top is provided with vertex (vertices) thorn (304).
A kind of 8. anti-explosion safety lithium battery according to claim 7, it is characterised in that：The negative pole pole (7), positive pole pole
It is respectively equipped with screw thread on post (8), plastics (3) on the negative pole, plastics (4) are provided with and negative pole pole (7), positive pole pole on positive pole
The screw thread that post (8) coordinates.
A kind of 9. anti-explosion safety lithium battery according to claim 7, it is characterised in that：The fixed part (33) and depressed part
(34) junction is provided with upper groove (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710839044.7A CN107425152A (en) | 2017-09-18 | 2017-09-18 | One kind automatically powers off explosion-proof lithium battery lamina tecti and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710839044.7A CN107425152A (en) | 2017-09-18 | 2017-09-18 | One kind automatically powers off explosion-proof lithium battery lamina tecti and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107425152A true CN107425152A (en) | 2017-12-01 |
Family
ID=60433514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710839044.7A Pending CN107425152A (en) | 2017-09-18 | 2017-09-18 | One kind automatically powers off explosion-proof lithium battery lamina tecti and application |
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| Country | Link |
|---|---|
| CN (1) | CN107425152A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111446410A (en) * | 2019-01-17 | 2020-07-24 | 宁德新能源科技有限公司 | Battery cell and battery |
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| TW201414052A (en) * | 2012-09-19 | 2014-04-01 | Dijiya Energy Saving Technology Inc | Lithium battery having an explosion-proof structure |
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| CN204793006U (en) * | 2015-06-26 | 2015-11-18 | 广东新凌嘉新能源股份有限公司 | Lithium cell module |
| CN107123777A (en) * | 2016-02-25 | 2017-09-01 | 比亚迪股份有限公司 | Cell, electrokinetic cell and electric automobile |
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- 2017-09-18 CN CN201710839044.7A patent/CN107425152A/en active Pending
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|---|---|---|---|---|
| JPH0831397A (en) * | 1994-07-15 | 1996-02-02 | Matsushita Electric Ind Co Ltd | Explosion-proof battery |
| TW201414052A (en) * | 2012-09-19 | 2014-04-01 | Dijiya Energy Saving Technology Inc | Lithium battery having an explosion-proof structure |
| CN103700795A (en) * | 2012-09-28 | 2014-04-02 | 叶小平 | Lithium battery |
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| CN203589111U (en) * | 2013-11-27 | 2014-05-07 | 浙江正电新能源有限公司 | Temperature control explosion-proof membrane equipment of battery cell |
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| CN111446410A (en) * | 2019-01-17 | 2020-07-24 | 宁德新能源科技有限公司 | Battery cell and battery |
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