CN205452367U - Soft packet of lithium cell secure architecture - Google Patents
Soft packet of lithium cell secure architecture Download PDFInfo
- Publication number
- CN205452367U CN205452367U CN201521093358.XU CN201521093358U CN205452367U CN 205452367 U CN205452367 U CN 205452367U CN 201521093358 U CN201521093358 U CN 201521093358U CN 205452367 U CN205452367 U CN 205452367U
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- China
- Prior art keywords
- battery
- lug
- plastic film
- aluminum plastic
- stage casing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a soft packet of lithium cell secure architecture, including plastic -aluminum membrane and the battery of setting in it, be connected with utmost point ear on the battery, preceding, the rear surface of battery are equipped with the flame retardant coating, are equipped with the sealing layer at plastic -aluminum membrane surface border, the flame retardant coating includes the fire prevention shell that the low melting polymer was made, has packed the organic solvent fire extinguishing agent in the fire prevention shell. The utility model discloses rational in infrastructure, can prevent the battery burning accident that soft packet of lithium battery leakage of plastic -aluminum membrane caused, good application prospect has.
Description
Technical field
This this utility model relates to a kind of battery structure, particularly a kind of soft package lithium battery safeguard construction.
Background technology
Soft Roll lithium rechargeable battery can make different size model in shape and capacity, adapts to different electrical appliance demand.Soft package lithium battery is total under set condition for a long time in short circuit or the big electric current of high magnification, and lug easily produces high temperature, at fusing battery pole ear high polymer sealing, causes battery leakage, and short-circuit fire explodes.Lithium cobalt oxide of lithium-ion secondary battery cathode materials and nickel cobalt lithium aluminate are under battery short circuit and big current condition, and positive electrode the most at high temperature decomposes, and produce oxygen, easily cause inside battery active substance to burn at inside battery, cause battery catches fire to explode.Soft package lithium battery in the preparation, is enclosed within generation R angle when battery mould becomes stamping to cheat outside aluminum plastic film, lithium battery in use, easily produces at R angle and ruptures, cause cells burst accident；For disadvantages mentioned above, it is necessary to make improvement.
Summary of the invention
In order to overcome the deficiencies in the prior art, this utility model provides a kind of rational in infrastructure, soft package lithium battery safeguard construction that security performance is high.
This utility model solves its technical problem and be the technical scheme is that
A kind of soft package lithium battery safeguard construction, including aluminum plastic film and the battery set within it, battery connects and has lug, the forward and backward surface of described battery is provided with fireprotection layer, it is provided with sealant at aluminum plastic film outer surface edge, described fireprotection layer includes the fire prevention shell that low melting point polymer is made, and is filled with organic solvent extinguishing chemical in fire prevention shell.
Wherein, described sealant edge is provided with battery fixing hole.
Additionally, described lug includes lug back segment, lug stage casing and lug leading portion, this lug back segment is connected with battery in aluminum plastic film inside, lug stage casing is stretched out outside aluminum plastic film, being provided with outside tab, lug stage casing in lug stage casing and aluminum plastic film surface and be coated with insulating heat-conductive waterproof sealing layer, described lug leading portion is provided with attaching nut.
Further, described lug corner is circular arc.
The beneficial effects of the utility model are: when Soft Roll lithium rechargeable battery is under battery short circuit and big current conditions, and internal temperature of battery steeply rises, and positive electrode at high temperature decomposes, and produce oxygen, and inside battery active substance burns；Now, the fireprotection layer of the battery surface shell that at high temperature makes to prevent fires melts immediately and ruptures, and in fire prevention shell, organic solvent extinguishing chemical covers on battery pole piece surface, prevents the further vigorous reaction of battery, and catching fire explodes, and causes security incident.In soft package lithium battery aluminum plastic film Surface Edge along the sealant of the waterproof high polymer of insulating heat-conductive, it is possible to prevent aluminum plastic film soft-package battery R Jiao Chu and four limits to rupture leakage.Further increase battery security.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is the structural representation of lug in this utility model；
Fig. 4 is this utility model and is unified into battery pack structure schematic diagram.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, a kind of soft package lithium battery safeguard construction, including aluminum plastic film 2 and the battery 1 set within it, battery 1 connects and has lug 3, the forward and backward surface of described battery 1 is provided with fireprotection layer 4, be provided with sealant 5 at aluminum plastic film 2 outer surface edge, described fireprotection layer 4 includes the fire prevention shell that low melting point polymer is made, and is filled with organic solvent extinguishing chemical in fire prevention shell.Wherein, fire prevention shell is that fusing point is less than 170 DEG C of insulation high polymer materials, and extinguishing chemical is carbon tetrachloride.
When Soft Roll lithium rechargeable battery is under battery short circuit and big current conditions, and battery 1 internal temperature steeply rises, and positive electrode at high temperature decomposes, producing oxygen, inside battery active substance burns, when internal temperature of battery is higher than 170 DEG C time；The fireprotection layer 4 on the battery 1 surface shell that at high temperature makes to prevent fires melts immediately and ruptures, and in fire prevention shell, organic solvent extinguishing chemical covers in battery 1 pole piece, prevents the further vigorous reaction of battery 1, catching fire blast, causes security incident.In soft package lithium battery aluminum plastic film 2 Surface Edge along the sealant 5 of the waterproof high polymer of insulating heat-conductive, it is possible to prevent aluminum plastic film soft-package battery R Jiao Chu and four limits to rupture leakage.Further increase battery security.
In this utility model, described sealant 5 edge is provided with battery fixing hole 6.Battery series-parallel connection composition set of cells can be realized by battery fixing hole 6.
With reference to Fig. 3, described lug 3 includes lug back segment, lug stage casing and lug leading portion, this lug back segment is connected with battery 1 in aluminum plastic film 2 inside, lug stage casing is stretched out outside aluminum plastic film 2, being provided with outside tab 7, lug stage casing in lug stage casing and aluminum plastic film 2 surface and be coated with insulating heat-conductive waterproof sealing layer 8, described lug leading portion is provided with attaching nut 9.Insulating heat-conductive waterproof sealing layer 8 has insulative water-proof conductive force, and lug attaching nut 9 can install conducting bolt composition set of cells, as shown in Figure 4.
In this utility model, described lug 3 corner is circular arc, is possible to prevent to scratch battery.
This utility model is rational in infrastructure, be possible to prevent the cells burst accident that aluminum plastic film soft package lithium battery leakage causes, and has applications well prospect.
Claims (4)
1. a soft package lithium battery safeguard construction, including aluminum plastic film (2) and the battery (1) that sets within it, lug (3) is had in the upper connection of battery (1), it is characterized in that: the forward and backward surface of described battery (1) is provided with fireprotection layer (4), it is provided with sealant (5) at aluminum plastic film (2) outer surface edge, described fireprotection layer (4) includes the fire prevention shell being made up of fusing point less than 170 DEG C of polymer, is filled with organic solvent extinguishing chemical in fire prevention shell.
A kind of soft package lithium battery safeguard construction the most according to claim 1, it is characterised in that described sealant (5) edge is provided with battery fixing hole (6).
A kind of soft package lithium battery safeguard construction the most according to claim 1, it is characterized in that described lug (3) includes lug back segment, lug stage casing and lug leading portion, this lug back segment is connected with battery (1) in aluminum plastic film (2) inside, aluminum plastic film (2) is stretched out outward in lug stage casing, being provided with outside tab (7), lug stage casing in lug stage casing and aluminum plastic film (2) surface and be coated with insulating heat-conductive waterproof sealing layer (8), described lug leading portion is provided with attaching nut (9).
A kind of soft package lithium battery safeguard construction the most according to claim 3, it is characterised in that described lug (3) corner is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521093358.XU CN205452367U (en) | 2015-12-25 | 2015-12-25 | Soft packet of lithium cell secure architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521093358.XU CN205452367U (en) | 2015-12-25 | 2015-12-25 | Soft packet of lithium cell secure architecture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452367U true CN205452367U (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521093358.XU Active CN205452367U (en) | 2015-12-25 | 2015-12-25 | Soft packet of lithium cell secure architecture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205452367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425222A (en) * | 2017-08-08 | 2017-12-01 | 佛山市顺德区精锐电池科技有限公司 | A kind of lithium battery explosion-proof flame-retardant structure |
| WO2022204966A1 (en) * | 2021-03-30 | 2022-10-06 | 宁德新能源科技有限公司 | Battery cell and electrical device |
-
2015
- 2015-12-25 CN CN201521093358.XU patent/CN205452367U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425222A (en) * | 2017-08-08 | 2017-12-01 | 佛山市顺德区精锐电池科技有限公司 | A kind of lithium battery explosion-proof flame-retardant structure |
| WO2022204966A1 (en) * | 2021-03-30 | 2022-10-06 | 宁德新能源科技有限公司 | Battery cell and electrical device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |