CN202888282U - Ceramic composite membrane for lithium ion battery - Google Patents
Ceramic composite membrane for lithium ion battery Download PDFInfo
- Publication number
- CN202888282U CN202888282U CN2012204970588U CN201220497058U CN202888282U CN 202888282 U CN202888282 U CN 202888282U CN 2012204970588 U CN2012204970588 U CN 2012204970588U CN 201220497058 U CN201220497058 U CN 201220497058U CN 202888282 U CN202888282 U CN 202888282U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- battery
- ceramic
- ion battery
- ceramic coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses a ceramic composite membrane for a lithium ion battery. The composite membrane comprises a polyolefin substrate, micro-pores, ceramic coating layers, and polymer bonding layers, wherein the micro-pores are formed in the polyolefin substrate; the ceramic coating layers are arranged at the upper surface and the lower surface of the polyolefin substrate; and the polymer bonding layers are arranged at the outer surfaces of the ceramic coating layers. By adopting the ceramic composite membrane for the lithium ion battery, the ceramic coating layers are arranged at the upper surface and the lower surface of the polyolefin substrate. Therefore, the temperature resistance and the chemical resistance of the membrane are improved; meanwhile, the polymer bonding layers are arranged at the surfaces of the ceramic layers for bonding the anode and the cathode of the battery. Thus, the mechanical performance of the battery is enhanced, and the safety of the battery is also ensured.
Description
Technical field
The utility model belongs to polymeric material field, relates in particular to a kind of lithium ion battery Ceramic Composite barrier film.
Background technology
Lithium ion battery has obtained application as a kind of clean energy resource in increasing field, for example, and mobile phone, notebook computer, electric bicycle and power vehicle etc.Because these use lithium ion batteries closely bound up as the product of power supply and people's life, people are more and more higher to the requirement of its fail safe.Lithium ion battery generally comprises pack case and is contained in the interior battery core of pack case, battery core generally comprises positive pole, negative pole, electrolyte, and the barrier film between interval and positive pole and the negative pole, its septation is a very important part, diaphragm material has vital impact to the performance of actual battery, and it is the perforated membrane of a kind of ion conducting, electronic isolation.Diaphragm material also must possess good chemistry, electrochemical stability and mechanism performance and in the repeated charge process electrolyte be kept wettability highly in addition.Barrier film generally adopts polypropylene or vinyon material to make can isolate battery plus-negative plate, to prevent short circuit, also can be when battery to be overheated, and the electric current that intercepts in the battery by the closed pore function conducts.But the thermal stability of battery diaphragm and percent thermal shrinkage are subject to the restriction of its material therefor, in the situation that battery is heated, may seriously shrink even melt, and then cause internal short-circuit of battery, and thermal runaway finally appears, cause danger on fire even blast, can't form adhesive attraction between barrier film and anode and the negative pole simultaneously, when battery is received External Force Acting, staggered floor easily occurs between barrier film and the electrode, also easily cause internal short-circuit of battery.
The utility model content
The purpose of this utility model is to utilize at a kind of lithium ion battery Ceramic Composite barrier film, is intended to solve the thermal stability of existing battery diaphragm and the problem that percent thermal shrinkage is subject to its material therefor restriction.
The purpose of this utility model is to provide a kind of lithium ion battery Ceramic Composite barrier film, and described composite diaphragm comprises: polyolefin substrate, micropore, ceramic coating layer, polymer bonding layer; Described micropore is set on the described polyolefin substrate, and described polyolefin substrate upper and lower surface arranges described ceramic coating layer, and described ceramic coating layer outer surface arranges described polymer bonding layer.
Further, the thickness of described ceramic coating layer is 0.5-20 μ m.
Lithium ion battery of the present utility model Ceramic Composite barrier film, this composite diaphragm comprises: polyolefin substrate, micropore, ceramic coating layer, polymer bonding layer; Micropore is set on the polyolefin substrate, and the polyolefin substrate upper and lower surface arranges ceramic coating layer, and the ceramic coating layer outer surface arranges the polymer bonding layer.Lithium ion battery of the present utility model Ceramic Composite barrier film adopts paint-on technique at polyolefin surfaces coated ceramic material, in order to heat-resisting quantity and the chemical resistance that improves barrier film; Simultaneously be provided with again the polymer bonding layer on the surface of ceramic layer, in order to the battery plus-negative plate that bonds, strengthen the battery machine performance; When in the electrolyte corrosive environment of battery, working, can keep the stability of good heat-resisting quantity, thereby guarantee that lithium ion battery has good fail safe, high-temperature behavior, high-voltage performance and mechanical performance.
Description of drawings
Fig. 1 is the lithium ion battery that provides of the utility model with the structural representation of Ceramic Composite barrier film.
Among the figure: 1, polyolefin substrate; 11, micropore; 2, ceramic coating layer; 3, polymer bonding layer.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model embodiment provides a kind of lithium ion battery Ceramic Composite barrier film, and this composite diaphragm comprises: polyolefin substrate, micropore, ceramic coating layer, polymer bonding layer; Micropore is set on the polyolefin substrate, and the polyolefin substrate upper and lower surface arranges ceramic coating layer, and the ceramic coating layer outer surface arranges the polymer bonding layer.
As the prioritization scheme of the utility model embodiment, the thickness of ceramic coating layer is 0.5-20 μ m.
Referring to accompanying drawing 1, the utility model lithium ion battery is described in further detail with the Ceramic Composite barrier film.
Lithium ion battery of the present utility model Ceramic Composite barrier film is provided with micropore 11 at polyolefin substrate 1, and 0.01-10 μ m is adopted in micropore 11 apertures, and polyolefin substrate 1 is to be mixed with by materials such as high density polyethylene (HDPE) and polypropylene to form; Be provided with ceramic coating layer 2 in polyolefin 1 upper and lower surface, the thickness of coat adopts 0.5-20 μ m, and ceramic layer is crossed when thin, when forming long dendrite in the battery, can not play good iris action, pottery can increase macrocnemic resistance when blocked up, and battery performance is worsened; Be provided with polymerization tack coat 3 on the surface of ceramic coating layer 2, polymer is that Kynoar and polyoxyethylene mix, and is used for bonding barrier film and battery plus-negative plate.
Lithium ion battery of the present utility model Ceramic Composite barrier film, this composite diaphragm comprises: polyolefin substrate, micropore, ceramic coating layer, polymer bonding layer; Micropore is set on the polyolefin substrate, and the polyolefin substrate upper and lower surface arranges ceramic coating layer, and the ceramic coating layer outer surface arranges the polymer bonding layer.Lithium ion battery of the present utility model Ceramic Composite barrier film adopts paint-on technique at polyolefin surfaces coated ceramic material, in order to heat-resisting quantity and the chemical resistance that improves barrier film; Simultaneously be provided with again the polymer bonding layer on the surface of ceramic layer, in order to the battery plus-negative plate that bonds, strengthen the battery machine performance; When in the electrolyte corrosive environment of battery, working, can keep the stability of good heat-resisting quantity, thereby guarantee that lithium ion battery has good fail safe, high-temperature behavior, high-voltage performance and mechanical performance.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (2)
1. a lithium ion battery Ceramic Composite barrier film is characterized in that, described composite diaphragm comprises: polyolefin substrate, micropore, ceramic coating layer, polymer bonding layer;
Described micropore is set on the described polyolefin substrate, and described polyolefin substrate upper and lower surface arranges described ceramic coating layer, and described ceramic coating layer outer surface arranges described polymer bonding layer.
2. lithium ion battery as claimed in claim 1 Ceramic Composite barrier film is characterized in that, the thickness of described ceramic coating layer is 0.5-20 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204970588U CN202888282U (en) | 2012-09-24 | 2012-09-24 | Ceramic composite membrane for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204970588U CN202888282U (en) | 2012-09-24 | 2012-09-24 | Ceramic composite membrane for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888282U true CN202888282U (en) | 2013-04-17 |
Family
ID=48079676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204970588U Expired - Fee Related CN202888282U (en) | 2012-09-24 | 2012-09-24 | Ceramic composite membrane for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888282U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108807822A (en) * | 2018-06-28 | 2018-11-13 | 桑顿新能源科技有限公司 | A kind of high security lithium ion battery diaphragm |
| CN111615760A (en) * | 2018-01-22 | 2020-09-01 | 赛尔格有限责任公司 | Improved coated separator, lithium battery and related methods |
| CN111769253A (en) * | 2020-06-29 | 2020-10-13 | 天津力神电池股份有限公司 | Battery positive plate, flexible-package lithium fluorocarbon primary battery and preparation method thereof |
-
2012
- 2012-09-24 CN CN2012204970588U patent/CN202888282U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111615760A (en) * | 2018-01-22 | 2020-09-01 | 赛尔格有限责任公司 | Improved coated separator, lithium battery and related methods |
| CN108807822A (en) * | 2018-06-28 | 2018-11-13 | 桑顿新能源科技有限公司 | A kind of high security lithium ion battery diaphragm |
| CN111769253A (en) * | 2020-06-29 | 2020-10-13 | 天津力神电池股份有限公司 | Battery positive plate, flexible-package lithium fluorocarbon primary battery and preparation method thereof |
| CN111769253B (en) * | 2020-06-29 | 2022-07-19 | 天津力神电池股份有限公司 | Battery positive plate, flexible-package lithium fluorocarbon primary battery and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9887406B2 (en) | Separator for non-aqueous secondary battery, method for manufacturing the same, and non-aqueous secondary battery | |
| CN106654362B (en) | Composite solid electrolyte film, preparation method and lithium ion battery | |
| Deimede et al. | Separators for lithium‐ion batteries: a review on the production processes and recent developments | |
| CN102569881A (en) | Lithium ion battery | |
| JP5647378B1 (en) | Non-aqueous secondary battery separator and non-aqueous secondary battery | |
| CN104124427B (en) | Electrode, electrochemical device comprising electrode, and manufacture method of electrode | |
| CN102569701A (en) | Lithium ion battery and membrane thereof | |
| CN206210904U (en) | A kind of lithium ion battery barrier film | |
| CN105140450A (en) | Lithium ion battery composite separator, preparation method thereof, and lithium ion battery | |
| CN202888286U (en) | Composite diaphragm with high performance for lithium battery | |
| JP2016522553A (en) | Method for manufacturing separator for lithium secondary battery, separator manufactured by the method, and lithium secondary battery including the same | |
| TW200913348A (en) | Lithium secondary battery | |
| CN101826606A (en) | Polytetrafluoroethylene lithium-ion battery separator and preparation method thereof | |
| CN107749489B (en) | High-safety high-energy-density lithium ion battery | |
| CN103066227A (en) | Flexible composite ceramic membrane with low temperature closed-cell performance and good dimensional stability | |
| CN206619633U (en) | High-penetration binding type lithium battery diaphragm | |
| CN109841785A (en) | A kind of battery diaphragm and preparation method thereof and the lithium ion battery comprising the diaphragm | |
| CN106910860A (en) | Lithium battery diaphragm coating, barrier film and barrier film preparation method | |
| CN206774609U (en) | High-temperature-reslithium lithium battery barrier film | |
| CN104022243A (en) | Galvanic element with enhanced safety properties | |
| CN102569703A (en) | Diaphragm and lithium ion battery applying diaphragm | |
| CN202888282U (en) | Ceramic composite membrane for lithium ion battery | |
| CN102810655A (en) | Lithium ion battery composite isolation membranes | |
| KR20150012853A (en) | Pouch for Secondary Battery and Flexible Secondary Battery using The Same | |
| CN109817869A (en) | A kind of lithium ion battery separator and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20180924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |