CN203491312U - Cover board component of lithium ion battery, and lithium ion battery comprising cover board component - Google Patents
Cover board component of lithium ion battery, and lithium ion battery comprising cover board component Download PDFInfo
- Publication number
- CN203491312U CN203491312U CN201320591731.9U CN201320591731U CN203491312U CN 203491312 U CN203491312 U CN 203491312U CN 201320591731 U CN201320591731 U CN 201320591731U CN 203491312 U CN203491312 U CN 203491312U
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- Prior art keywords
- reinforcement
- lithium ion
- cover board
- ion battery
- blast hole
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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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Abstract
The utility model provides a cover board component of a lithium ion battery. The cover board component comprises a cover board body, a blast hole formed in the cover board body, and a blast piece for sealing the blast hole; the cover board component further comprises a strengthening rib positioned in the blast hole; the strengthening rib is fixedly connected with the inner wall of the blast hole. According to the component of the lithium ion battery, the strengthening rib is additionally arranged in the blast hole, thus, the strength of the cover board can be increased, and meanwhile, the blast of the blast hole is not influenced.
Description
Technical field
The utility model belongs to field of batteries, the battery that relates in particular to a kind of battery cover board assembly and contain this assembly.
Background technology
Lithium ion battery is a kind of large capacity, high-power battery.It is mainly used on mini-plant, particularly mobile phone.Along with being widely used of mobile communication product, the application of lithium battery is also in continuous expansion.
The features such as voltage is high, the life-span is long, energy density is high, light are the advantage places of lithium battery, but its fatal weakness is that its fail safe is poorer than other secondary cells, domestic and international existing many claim events that cause because of lithium battery blast, the more announcement of bankruptcy due to the blast of lithium battery of Canadian a company.
At present, the blast hole of conventionally setting up defences on Aluminum cover, and on explosionproof hole, weld rupture disk and prevent battery explosion.The area that this kind of method detonated because battery is required is larger, after cover plate perforate, and weakened, in use easily crooked, affect the welding effect of rupture disk and cover plate.
Utility model content
The utility model is for solving existing lithium ion battery cover board in the weak strength of blast hole site, easily crooked, affect the technical problem of the welding effect of rupture disk and cover plate, provide a kind of blast hole site intensity by force, not flexible, do not affect the battery cover board assembly of welding effect of rupture disk and cover plate and the lithium ion battery that contains this cover plate assembly.
The technical solution of the utility model is: a kind of lithium ion battery cover board assembly, and this cover plate assembly comprises cover plate main body, is positioned at the blast hole on cover plate main body, the rupture disk that blast hole is sealed; Described cover plate main body also comprises the reinforcement that is positioned at blast hole; Described reinforcement is fixedly connected with the inwall of blast hole.
Preferably, the center of described reinforcement and the center of blast hole are overlapping.
Preferably, described reinforcement is cross reinforcement, and the end of four arms and the inwall of blast hole of described cross reinforcement are fixedly connected with.
Preferably, described reinforcement comprises cross reinforcement and ring stiffener, and the center of described cross reinforcement and the center of described ring stiffener are overlapping, and four arms of described cross reinforcement are connected with ring stiffener and extend ring part; The end of four arms and the inwall of blast hole of described cross reinforcement are fixedly connected with.
Preferably, described ring stiffener is divided into equal two parts by four arms of cross reinforcement.
Preferably, the shape of described ring stiffener is identical with the shape of blast hole.
Preferably, the arm of described cross reinforcement is wide is 1-6mm.
Preferably, described blast hole is stepped hole, and four arms of described cross reinforcement are arranged on the step of stepped hole.
Preferably, described reinforcement does not contact with rupture disk.
Preferably, the distance of described reinforcement and rupture disk is 0.02-0.20mm.
Another goal of the invention of the present utility model is to provide this lithium ion battery of a kind of lithium ion battery and comprises: cover plate assembly, battery container, pole piece and electrolyte, and pole piece and electrolyte level are in battery container, and cover plate assembly and battery container are tightly connected; Inside battery electric current is drawn in electrode terminal on described cover plate assembly and pole piece conducting; Described cover plate assembly is cover plate assembly described in the utility model.
Lithium ion battery assembly of the present utility model, at the blast hole site increase reinforcement of cover plate, can increase the intensity of cover plate, reduces the impact of blast hole on cover plate intensity.
Accompanying drawing explanation
Fig. 1 is the lithium ion battery cover board assembly that the utility model one embodiment provides;
Fig. 2 is the lithium ion battery cover board assembly that the utility model one embodiment provides.
Reference numeral is as follows: 1-cover plate main body, 2-blast hole, 3-rupture disk, the cross reinforcement of 4-, four arms of the cross reinforcement of 41-, 42-end, 5-ring stiffener.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the cover plate assembly that the utility model one embodiment provides comprises: cover plate main body 1, be positioned at blast hole 2 on cover plate main body 1, by the rupture disk 3 of blast hole sealing; Cover plate assembly also comprises the reinforcement that is positioned at blast hole 2; Reinforcement is fixedly connected with the inwall of blast hole 2.
Lithium ion battery assembly of the present utility model, at the blast hole site increase reinforcement of cover plate, can increase the intensity of cover plate, reduces the impact of blast hole on cover plate intensity.
According to utility model one embodiment, the center of reinforcement and the center of blast hole are overlapping.The booster action of reinforcement can be uniformly dispersed like this.
According to utility model one embodiment, reinforcement is cross reinforcement 4, and the end 42 of four arms 41 of cross reinforcement is fixedly connected with the inwall of blast hole 2.Cross reinforcement can be divided into four parts uniformly by blast hole, can fully share the impact of blast hole on cover plate intensity, thereby better increases the intensity of cover plate.
As shown in Figure 2, according to the utility model one embodiment, reinforcement comprises cross reinforcement 4 and ring stiffener 5, and the center of the center of cross reinforcement 4 and ring stiffener 5 is overlapping, and four arms of cross reinforcement 4 are connected with ring stiffener 5 and extend ring stiffener 5; The end 42 of four arms of cross reinforcement 4 is fixedly connected with the inwall of blast hole 2.
Further, ring stiffener 5 is divided into equal two parts by four arms 41 of cross reinforcement.Ring stiffener is divided into by four arms of cross reinforcement the intensity that equal two parts can better increase cover plate.According to the utility model one embodiment, the shape of ring stiffener 5 is identical with the shape of blast hole 2.
The intensity that the ring stiffener 5 identical with blast hole 2 shapes can make cover plate main body 1 each several part increase equates, thereby can not affect the intensity of whole cover plate main body 1 because local strength increases less.
According to the utility model one embodiment, the arm of cross reinforcement is wide is 1-6mm.Arm is wide both can strengthen the intensity of cover plate main body 1 for 1-6mm, can not affect again rupture disk 3 and occur the explosion under dangerous situation at battery.
According to the utility model one embodiment, blast hole 2 is stepped hole, and four arms 41 of cross reinforcement 4 are arranged on the step of stepped hole.Reinforcement does not contact with rupture disk 3.Reinforcement does not contact and can reduce the impact of reinforcement on rupture disk 3 with rupture disk 3.In order better to reduce the impact of reinforcement on rupture disk, further, the distance of reinforcement and rupture disk 3 is 0.02-0.20mm.
According to the utility model one embodiment, reinforcement and cover plate main body 1 are integrative-structures.This integrative-structure is that punching press forms reinforcement when making to form blast hole by cover plate main body punching press.
Lithium ion battery assembly of the present utility model increases reinforcement in blast hole, can be good at increasing the intensity of cover plate, does not affect the explosion of blast hole simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (11)
1. a lithium ion battery cover board assembly, is characterized in that, this cover plate assembly comprises cover plate main body, is positioned at the blast hole on cover plate main body, the rupture disk that blast hole is sealed; Described cover plate assembly also comprises the reinforcement that is positioned at blast hole; Described reinforcement is fixedly connected with the inwall of blast hole.
2. lithium ion battery cover board assembly according to claim 1, is characterized in that, the center of described reinforcement and the center of blast hole are overlapping.
3. lithium ion battery cover board assembly according to claim 2, is characterized in that, described reinforcement is cross reinforcement, and the end of four arms and the inwall of blast hole of described cross reinforcement are fixedly connected with.
4. lithium ion battery cover board assembly according to claim 2, it is characterized in that, described reinforcement comprises cross reinforcement and ring stiffener, the center of described cross reinforcement and the center of described ring stiffener are overlapping, and four arms of described cross reinforcement are connected with ring stiffener and extend ring stiffener; The end of four arms and the inwall of blast hole of described cross reinforcement are fixedly connected with.
5. lithium ion battery cover board assembly according to claim 4, is characterized in that, described ring stiffener is divided into equal two parts by four arms of cross reinforcement.
6. lithium ion battery cover board assembly according to claim 5, is characterized in that, the shape of described ring stiffener is identical with the shape of blast hole.
7. according to the lithium ion battery cover board assembly described in claim 3-6 any one, it is characterized in that, the arm of described cross reinforcement is wide is 1-6mm.
8. according to the lithium ion battery cover board assembly described in claim 3-6 any one, it is characterized in that, described blast hole is stepped hole, and four arms of described cross reinforcement are arranged on the step of stepped hole.
9. lithium ion battery cover board assembly according to claim 8, is characterized in that, described reinforcement does not contact with rupture disk.
10. lithium ion battery cover board assembly according to claim 8, is characterized in that, the distance of described reinforcement and rupture disk is 0.02-0.20mm.
11. 1 kinds of batteries, comprising: cover plate assembly, battery container, pole piece and electrolyte, and pole piece and electrolyte level are in battery container, and cover plate assembly and battery container are tightly connected; Inside battery electric current is drawn in electrode terminal on described cover plate assembly and pole piece conducting; It is characterized in that, described cover plate assembly is the cover plate assembly described in claim 1-6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591731.9U CN203491312U (en) | 2013-09-25 | 2013-09-25 | Cover board component of lithium ion battery, and lithium ion battery comprising cover board component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591731.9U CN203491312U (en) | 2013-09-25 | 2013-09-25 | Cover board component of lithium ion battery, and lithium ion battery comprising cover board component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491312U true CN203491312U (en) | 2014-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591731.9U Expired - Lifetime CN203491312U (en) | 2013-09-25 | 2013-09-25 | Cover board component of lithium ion battery, and lithium ion battery comprising cover board component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019165648A1 (en) * | 2018-02-27 | 2019-09-06 | 宁德时代新能源科技股份有限公司 | Top cover assembly and secondary battery |
-
2013
- 2013-09-25 CN CN201320591731.9U patent/CN203491312U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019165648A1 (en) * | 2018-02-27 | 2019-09-06 | 宁德时代新能源科技股份有限公司 | Top cover assembly and secondary battery |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
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| CX01 | Expiry of patent term |