CN109950428A - Battery case and its manufacturing process - Google Patents
Battery case and its manufacturing process Download PDFInfo
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- CN109950428A CN109950428A CN201711397982.2A CN201711397982A CN109950428A CN 109950428 A CN109950428 A CN 109950428A CN 201711397982 A CN201711397982 A CN 201711397982A CN 109950428 A CN109950428 A CN 109950428A
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- Prior art keywords
- battery case
- battery
- manufacturing process
- flange
- case according
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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 invention discloses a kind of battery case, photocatalyst layer is coated on the inside of the battery case；A kind of manufacturing process of battery case is also disclosed, in this way, the present invention when battery case destroys, is exposed to external battery electrolyte and pollutes the environment, using catalysis material to the degradation of organic electrolyte, be allowed to innoxious.
Description
Technical field
The invention belongs to battery technology fields, and in particular to a kind of battery case and its manufacturing process.
Background technique
Old and useless battery is very harmful, and arbitrarily discarding is the destruction to living environment, and the electrolyte of refuse battery exudation will cause
The pollution of underground water and soil, the health of the indirect threats mankind；The electrolyte of exudation enters soil or water source, then passes through crops
Into human body, the health of people is damaged.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of battery case and its manufacturing process.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
The embodiment of the present invention provides a kind of battery case, is coated with photocatalyst layer on the inside of the battery case.
In above scheme, the both ends of the battery case are provided with flange, and the flange rolls up battery core and cover plate assembly
While fixing；The battery case and flange are integrally formed.
In above scheme, when the battery case is cylindric, it is horizontal that the diameter of the battery case cross section is less than flange
The diameter in section.
In above scheme, the contact position of the battery case and flange forms step.
In above scheme, the battery case is hollow structure and is injected with coolant liquid.
In above scheme, the photocatalyst layer with a thickness of 1-50 μm.
Compared with prior art, for the present invention when battery case destroys, ring can be polluted by being exposed to external battery electrolyte
Border is allowed to innoxious using photocatalyst layer to the degradation of organic electrolyte.
The embodiment of the present invention also provides a kind of manufacturing process of battery case, which is realized by following steps:
Step 1: photochemical catalyst and lithium battery binder being mixed, efficient selective solvent is added, in thermostat water bath
At 20-65 DEG C, mixed slurry was obtained by magnetic stirrer 2-8 hours；
Step 2: the mixed slurry that the step 1 obtains is coated uniformly on the inside of battery case；
Step 3: by the step 2 coating after mixed slurry battery case 60-100 DEG C low-temperature bake 4-8 hours, directly
To battery case coated inside it is dry, be not cracked, do not fall, complete without bulky grain.
In above scheme, the photochemical catalyst uses mass fraction for the nano-TiO of 20%-60%2, nanometer Bi2O3Powder
End, nanometer Bi2O2CO3At least one of.
In above scheme, the lithium battery binder uses mass fraction for the Kynoar PVDF of 3%-10%.
In above scheme, the efficient selective solvent uses mass fraction for the N-Methyl pyrrolidone of 20%-60%.
Compared with prior art, manufacturing process of the invention is simple, by photocatalytic coating inside battery case, in electricity
Under the breakage of pond and thrown out without care abandoning, internal photochemical catalyst and effect of sunlight can not only degrade battery organic electrolyte, also
The bacterial virus in water can be killed with purifying water body, can non-selectivity oxidation gas chromatography and be allowed to thorough mineralising, finally
It is degraded to CO2、H2The innocuous substances such as O.
Detailed description of the invention
Fig. 1 provides a kind of structural schematic diagram of battery case for the embodiment of the present invention；
Fig. 2 provides a kind of top view of battery case for the embodiment of the present invention；
Fig. 3 provides a kind of photocatalysis principle figure of battery case for the embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of battery case, is coated with photocatalyst layer on the inside of the battery case 1, in this way,
Damaged and after being thrown out without care abandoning in battery case 1, internal photocatalyst layer and effect of sunlight can not only degrade battery Organic Electricity
Solve liquid, the bacterial virus in water can be killed with purifying water body, can non-selectivity oxidation gas chromatography and be allowed to thorough mine
Change, is finally degraded to CO2、H2The innocuous substances such as O.
Specifically, the photocatalyst layer with a thickness of 1-50 μm.
Further, as shown in Figure 1, 2, the both ends of battery case 1 are provided with flange 2, in this way, flange 2 by battery core and
Cover plate assembly crimping is fixed；Battery case 1 and flange 2 are integrally formed, and reduce components number.
Battery case 1 be it is cylindric, flange 2 be it is cylindric, the diameter of 1 cross section of battery case is less than 2 cross section of flange
Diameter, the contact position of battery case 1 and flange 2 forms step 3, in this way, being conducive to the fixation of cover board by step 3, by turning over
Sealing is realized on side 2, is reduced welding sequence, is reduced costs.
Still further, in order to improve the heat dissipation effect of battery case 1, the battery case is hollow structure and injects
There is coolant liquid, in this way, the partial heat that coolant liquid absorbs battery case 1 improves heat dissipation effect.
The embodiment of the present invention also provides a kind of manufacturing process of battery case, which is realized by following steps:
Step 1: photochemical catalyst and lithium battery binder being mixed, efficient selective solvent is added, in thermostat water bath
At 20-65 DEG C, mixed slurry was obtained by magnetic stirrer 2-8 hours；
Step 2: the mixed slurry that the step 1 obtains is coated uniformly on the inside of battery case；
Step 3: by the step 2 coating after mixed slurry battery case 60-100 DEG C low-temperature bake 4-8 hours, directly
To battery case coated inside it is dry, be not cracked, do not fall, complete without bulky grain.
Embodiment 1
The embodiment of the present invention 1 provides a kind of manufacturing process of battery case, which is realized by following steps:
Step 1: the nano-TiO for being 20% by mass fraction2Kynoar PVDF with 3% is mixed, and adds quality
The N-Methyl pyrrolidone NMP that score is 20% was obtained at 65 DEG C of thermostat water bath by magnetic stirrer 8 hours
Mixed slurry；
Step 2: the mixed slurry that the step 1 obtains being coated uniformly on the inside of battery case, and controls thickness 2
μm；
Step 3: by the battery case of mixed slurry after the step 2 coating 60 DEG C low-temperature bake 4 hours, until battery
The coated inside of shell is dry, is not cracked, does not fall, completing without bulky grain.
Embodiment 2
The embodiment of the present invention 2 provides a kind of manufacturing process of battery case, which is realized by following steps:
Step 1: the nanometer Bi for being 40% by mass fraction2O3Powder and 10% Kynoar PVDF mixing, add
The N-Methyl pyrrolidone NMP that mass fraction is 60% passes through magnetic stirrer 8 hours at 20 DEG C of thermostat water bath
Obtain mixed slurry；
Step 2: the mixed slurry that the step 1 obtains being coated uniformly on the inside of battery case, and controls thickness and exists
25μm；
Step 3: by the battery case of mixed slurry after the step 2 coating 60 DEG C low-temperature bake 8 hours, until battery
The coated inside of shell is dry, is not cracked, does not fall, completing without bulky grain.
Embodiment 3
The embodiment of the present invention 3 provides a kind of manufacturing process of battery case, which is realized by following steps:
Step 1: the nanometer Bi for being 60% by mass fraction2O2CO3Kynoar PVDF with 7% is mixed, and adds matter
The N-Methyl pyrrolidone NMP that score is 40% is measured, at 45 DEG C of thermostat water bath, was obtained by magnetic stirrer 6 hours
To mixed slurry；
Step 2: the mixed slurry that the step 1 obtains being coated uniformly on the inside of battery case, and controls thickness and exists
50μm；
Step 3: by the step 2 coating after mixed slurry battery case 100 DEG C low-temperature bake 6 hours, until electricity
The coated inside of pond shell is dry, is not cracked, does not fall, completing without bulky grain.
Embodiment 4
The embodiment of the present invention 4 provides a kind of manufacturing process of battery case, which is realized by following steps:
Step 1: the nano-TiO for being 40% by mass fraction2, nanometer Bi2O3Powder, nanometer Bi2O2CO3Mixture and
7% Kynoar PVDF mixing, adds the N-Methyl pyrrolidone NMP that mass fraction is 40%, in thermostat water bath
At 45 DEG C, mixed slurry was obtained by magnetic stirrer 6 hours；
Step 2: the mixed slurry that the step 1 obtains being coated uniformly on the inside of battery case, and controls thickness and exists
50μm；
Step 3: by the step 2 coating after mixed slurry battery case 100 DEG C low-temperature bake 6 hours, until electricity
The coated inside of pond shell is dry, is not cracked, does not fall, completing without bulky grain.
Manufacturing process of the invention is simple, by photocatalytic coating inside battery case, under battery breakage and
Thrown out without care abandoning, internal photochemical catalyst and effect of sunlight can not only degrade battery organic electrolyte, can kill with purifying water body
The bacterial virus gone out in water, can non-selectivity oxidation gas chromatography and be allowed to thorough mineralising, be finally degraded to CO2、H2O etc.
Innocuous substance.
As shown in figure 3,1 inside photocatalysis coating of battery case, under battery breakage and is thrown out without care abandoning, it is exposed to outer
The battery electrolyte in portion pollutes the environment, as long as internal photochemical catalyst and effect of sunlight, using catalysis material to Organic Electricity
The degradation for solving liquid, is allowed to innoxious.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of battery case, which is characterized in that be coated with photocatalyst layer on the inside of the battery case.
2. battery case according to claim 1, which is characterized in that the both ends of the battery case are provided with flange,
The flange fixes battery core and cover plate assembly crimping；The battery case and flange are integrally formed.
3. battery case according to claim 2, which is characterized in that when the battery case is cylindric, the battery
The diameter of cross-sectional outer is less than the diameter of flange cross section.
4. battery case according to claim 2 or 3, which is characterized in that the contact position shape of the battery case and flange
At step.
5. battery case according to claim 4, which is characterized in that the battery case is hollow structure and is injected with
Coolant liquid.
6. battery case according to claim 5, which is characterized in that the photocatalyst layer with a thickness of 1-50 μm.
7. a kind of manufacturing process of battery case, which is characterized in that the manufacturing process is realized by following steps:
Step 1: photochemical catalyst and lithium battery binder being mixed, efficient selective solvent is added, in thermostat water bath 20-65
At DEG C, mixed slurry was obtained by magnetic stirrer 2-8 hours；
Step 2: the mixed slurry that the step 1 obtains is coated uniformly on the inside of battery case；
Step 3: by the battery case of mixed slurry after the step 2 coating 60-100 DEG C low-temperature bake 4-8 hour, until electric
The coated inside of pond shell is dry, is not cracked, does not fall, completing without bulky grain.
8. a kind of manufacturing process of battery case according to claim 7, which is characterized in that the photochemical catalyst uses matter
Measure the nano-TiO that score is 20%-60%2, nanometer Bi2O3Powder, nanometer Bi2O2CO3At least one of.
9. a kind of manufacturing process of battery case according to claim 7 or 8, which is characterized in that the lithium battery bonding
Agent uses mass fraction for the Kynoar PVDF of 3%-10%.
10. a kind of manufacturing process of battery case according to claim 9, which is characterized in that the efficient selective is molten
Agent uses mass fraction for the N-Methyl pyrrolidone of 20%-60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711397982.2A CN109950428A (en) | 2017-12-21 | 2017-12-21 | Battery case and its manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711397982.2A CN109950428A (en) | 2017-12-21 | 2017-12-21 | Battery case and its manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109950428A true CN109950428A (en) | 2019-06-28 |
Family
ID=67006085
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711397982.2A Pending CN109950428A (en) | 2017-12-21 | 2017-12-21 | Battery case and its manufacturing process |
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| CN (1) | CN109950428A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115820013A (en) * | 2022-07-26 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | Battery case, preparation method thereof, secondary battery and power utilization device |
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|---|---|---|---|---|
| CN1432199A (en) * | 2000-05-26 | 2003-07-23 | 吉莱特公司 | Method of forming casing electrochemical cell |
| CN1546584A (en) * | 2003-12-11 | 2004-11-17 | 上海大学 | Environment-friendly type photocatalystic outer wall coating and its preparation method |
| JP2006088140A (en) * | 2004-03-23 | 2006-04-06 | Casio Comput Co Ltd | Photocatalytic decomposition device, power generator and electronic appliance |
| JP2009211925A (en) * | 2008-03-04 | 2009-09-17 | Toshiba Corp | Fuel cell and electronic apparatus mounted with fuel cell |
| JP2015125881A (en) * | 2013-12-26 | 2015-07-06 | 株式会社デンソー | Battery pack |
| CN104934652A (en) * | 2014-03-21 | 2015-09-23 | 深圳市沃特玛电池有限公司 | Lithium ion battery surface temperature reducing method |
| CN106011927A (en) * | 2016-07-29 | 2016-10-12 | 西安电子科技大学 | P-type semiconductor visible light photocatalytic material and hydrogen production method |
| CN106031887A (en) * | 2015-03-18 | 2016-10-19 | 李建明 | Photocatalytic coating agent, preparation method and coating method thereof |
| CN208127247U (en) * | 2017-12-21 | 2018-11-20 | 成都市银隆新能源有限公司 | A kind of battery case |
-
2017
- 2017-12-21 CN CN201711397982.2A patent/CN109950428A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432199A (en) * | 2000-05-26 | 2003-07-23 | 吉莱特公司 | Method of forming casing electrochemical cell |
| CN1546584A (en) * | 2003-12-11 | 2004-11-17 | 上海大学 | Environment-friendly type photocatalystic outer wall coating and its preparation method |
| JP2006088140A (en) * | 2004-03-23 | 2006-04-06 | Casio Comput Co Ltd | Photocatalytic decomposition device, power generator and electronic appliance |
| JP2009211925A (en) * | 2008-03-04 | 2009-09-17 | Toshiba Corp | Fuel cell and electronic apparatus mounted with fuel cell |
| JP2015125881A (en) * | 2013-12-26 | 2015-07-06 | 株式会社デンソー | Battery pack |
| CN104934652A (en) * | 2014-03-21 | 2015-09-23 | 深圳市沃特玛电池有限公司 | Lithium ion battery surface temperature reducing method |
| CN106031887A (en) * | 2015-03-18 | 2016-10-19 | 李建明 | Photocatalytic coating agent, preparation method and coating method thereof |
| CN106011927A (en) * | 2016-07-29 | 2016-10-12 | 西安电子科技大学 | P-type semiconductor visible light photocatalytic material and hydrogen production method |
| CN208127247U (en) * | 2017-12-21 | 2018-11-20 | 成都市银隆新能源有限公司 | A kind of battery case |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115820013A (en) * | 2022-07-26 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | Battery case, preparation method thereof, secondary battery and power utilization device |
| CN115820013B (en) * | 2022-07-26 | 2024-04-12 | 宁德时代新能源科技股份有限公司 | Battery case, method for manufacturing the same, secondary battery, and power consumption device |
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