CN208272052U - A kind of cylindrical battery electrolyte infiltration structure - Google Patents
A kind of cylindrical battery electrolyte infiltration structure Download PDFInfo
- Publication number
- CN208272052U CN208272052U CN201820935569.0U CN201820935569U CN208272052U CN 208272052 U CN208272052 U CN 208272052U CN 201820935569 U CN201820935569 U CN 201820935569U CN 208272052 U CN208272052 U CN 208272052U
- Authority
- CN
- China
- Prior art keywords
- electrolyte
- cylindrical battery
- gummed paper
- plastic film
- battery
- 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.)
- Active
Links
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
-
- 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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of cylindrical battery electrolyte to infiltrate structure, it is therefore intended that solves high-energy density cylindrical battery immersion liquid difficult problem.After cylindrical battery slot rolling, it is rolled into a cylinder in steel shell top with gummed paper, for holding electrolyte, then aluminum plastic film is cut, with heat sealing machine by cell package to aluminum plastic film, upper end opening, fluid injection after baking, and electrolyte surplus is kept, then aluminum plastic film heat-sealing suitable for reading is got up.After placement a period of time liquid to be electrolysed sufficiently soaks pole piece, aluminum plastic film is cut off, with the packaged nut cap of sealing machine, obtains the cylindrical battery that electrolyte sufficiently infiltrates.It is simple that the cylindrical battery electrolyte infiltrates structure fabrication, it is easy to operate, cylindrical battery electrolyte can be made adequately to be infiltrated, especially high-energy density cylindrical battery can more obtain sufficient electrolyte infiltration, ensure that battery has enough electrolyte, to guarantee that battery performance is stablized.
Description
Technical field
The utility model belongs to field of batteries, and in particular to a kind of cylindrical battery electrolyte infiltration structure.
Background technique
Lithium ion battery with high energy density is the one of one of primary study and the developing direction in China and new energy field
Secondary subversiveness is changed.Key Common Technologies class research project " high specific energy of the China in " 13 " new-energy automobile pilot special project
Measure lithium ion battery technology " in propose, arrive the year two thousand twenty, battery cell energy density >=300 watt-hours/kilogram, cycle life >=
1500 times, cost≤0.8 yuan/watt-hour, security performance reaches national standard.It is wanted in " made in China 2025 " of Ministry of Industry and Information's publication
Ask, the year two thousand twenty power lithium ion battery core energy density expectation reach 350 watt-hours/kilogram.
It is close to be often accompanied by high-pressure solid other than positive and negative anodes are using high gram volume material for lithium ion battery with high energy density
Degree, pole piece pressure it is more real, more using volume, battery capacity is higher.As 21700 batteries can accomplish 5300mAh at present,
18650 can accomplish 3500 mAh, have very high energy density.
But pole piece compaction density height will lead to fluid injection difficulty, pole piece intermediate gaps rate is small, the electrolyte that can be accommodated
It is just few, and electrolyte disengaging is difficult.Especially cylindrical battery needs electrolyte mostly using modernization continuous productive process
Immediately wick into then sealing immersion liquid in core.The key of problem is that core does not suction electrolyte at all, thus causes battery electric
A series of problems, such as resistance is big, the service life is short.How to allow material in cylindrical battery to be infiltrated sufficiently by electrolyte, be have it is extremely important
Research topic.
Summary of the invention
The utility model provides a kind of cylindrical battery electrolyte infiltration structure, and main structure is by half-cell (1), gummed paper
Cylinder (2), plastic-aluminum putamina (3) are constituted, and gummed paper cylinder (2) is entangled at the top of half-cell (1) steel shell, and half-cell (1) is encapsulated in cylindrical aluminium
In plastic film shell (3), bottom and side sealing, top opening, plastic-aluminum putamina (3) top is than gummed paper cylinder (2) height.
The half-cell (1), which refers to, has been inserted into core and by the semi-finished product on negative pole lug welding to steel shell and after slot rolling
Battery.
The gummed paper cylinder (2) is made of PE, PP or PET and gum, and the gum of gummed paper cylinder and steel shell top edge combine tightly
It is close, it is not revealed when having electrolyte injection.
The plastic-aluminum putamina (3) is by PP, aluminium foil, CPP(cast polypropylene film cast polypropylene) it forms, be
Cylindrical shape, it is open at one end.
A kind of cylindrical battery electrolyte infiltration technique of the utility model are as follows: enter shell welding slot rolling in cylinder half-cell (1)
Afterwards, it is rolled into a cylinder in steel shell top with gummed paper, for holding electrolyte, then cuts aluminum plastic film, incite somebody to action half electricity with heat sealing machine
Pond (1) is encapsulated into aluminum plastic film, upper end opening, bottom and side seals, then vacuum bakeout, subsequently by half-cell (1) from
It being taken out in vacuum drying oven, mouth is disposed vertically upward, electrolyte is injected in gummed paper cylinder by design requirement, and extraction vacuum several times,
And electrolyte is kept not blot surplus by core, then aluminum plastic film heat-sealing suitable for reading is got up, places a period of time, liquid to be electrolysed
Sufficiently after wetting pole piece, aluminum plastic film is cut off, packaged nut cap is welded with sealing machine, the circle that electrolyte sufficiently infiltrates is obtained after chemical conversion
Column battery.
The beneficial effects of the utility model are that cylindrical battery electrolyte infiltration structure fabrication is simple, easy to operate, can make
Cylindrical battery electrolyte is adequately infiltrated, and especially high-energy density cylindrical battery can more obtain sufficient electrolyte leaching
Profit, it is ensured that battery has enough electrolyte, to guarantee that battery performance is stablized.
Detailed description of the invention
Fig. 1 is that a kind of cylindrical battery electrolyte of the utility model infiltrates structural schematic diagram, 1- half-cell, 2- gummed paper in figure
Cylinder, 3- plastic-aluminum putamina.
Fig. 2 is half-cell.
Fig. 3 is that half-cell adds gummed paper cylinder, 1- half-cell, 2- gummed paper cylinder in figure.
Specific embodiment
The case being set forth below is the supplementary explanation to the utility model, rather than is limitations of the present invention.
As shown in Figure 1, a kind of cylindrical battery electrolyte infiltrates structure, main structure by half-cell (1), gummed paper cylinder (2),
Plastic-aluminum putamina (3) is constituted, and gummed paper cylinder (2) is entangled at the top of half-cell (1) steel shell, and half-cell (1) is encapsulated in cylindrical aluminium plastic film shell
(3) in, bottom and side sealing, top opening, plastic-aluminum putamina (3) top is than gummed paper cylinder (2) height.
The half-cell (1), which refers to, has been inserted into core and by the semi-finished product on negative pole lug welding to steel shell and after slot rolling
Battery.
The gummed paper cylinder (2) is made of PE, PP or PET and gum, and the gum of gummed paper cylinder and steel shell top edge combine tightly
It is close, it is not revealed when having electrolyte injection.
The plastic-aluminum putamina (3) is by PP, aluminium foil, CPP(cast polypropylene film cast polypropylene) it forms, be
Cylindrical shape, it is open at one end.
With model 18650, for the cylindrical battery of capacity 3.35Ah, 18650 battery of high capacity, positive plate compacted density
3.5g/cm3, 1.7 g/cm of cathode compacted density3。
Negative electrode lug and bottom are welded with resistance welding machine after core fills in steel shell, then slot rolling is at half-cell (1), rolling
After slot, three circles are twined along steel shell edge suitable for reading with the thick transparent adhesive tape of 50mm wide, 0.15mm, are made into a gummed paper cylinder (2).
135mm long, 77mm wide aluminum plastic film are cut, for doing plastic-aluminum putamina (1), half-cell surface is rolled in, with heat-sealing
Machine seals side and bottom.
Upper process half-cell (1) is put into vacuum oven, 85 DEG C of temperature, vacuum degree -0.09Mpa, the time 48 hours.
It is sealed with heat sealing machine plastic-aluminum putamina (3) is suitable for reading.
Normal temperature shelf two days.
Under dehumidified environment, aluminum plastic film is cut, pours out excess electrolyte, transparent adhesive tape of tearing, welding cap cap, sealing.
Battery is made into after chemical conversion.
Claims (4)
1. a kind of cylindrical battery electrolyte infiltrates structure, which is characterized in that its main structure by half-cell (1), gummed paper cylinder (2),
Plastic-aluminum putamina (3) is constituted, and gummed paper cylinder (2) is entangled at the top of half-cell (1) steel shell, and half-cell (1) is encapsulated in cylindrical aluminium plastic film shell
(3) in, bottom and side sealing, top opening, plastic-aluminum putamina (3) top is than gummed paper cylinder (2) height.
2. a kind of cylindrical battery electrolyte according to claim 1 infiltrates structure, which is characterized in that the half-cell (1)
Refer to and has been inserted into core and by the semi-finished product battery on negative pole lug welding to steel shell and after slot rolling.
3. a kind of cylindrical battery electrolyte according to claim 1 infiltrates structure, which is characterized in that the gummed paper cylinder (2)
It is made of PE, PP or PET and gum, the gum of gummed paper cylinder and steel shell top edge are tightly combined, and are not let out when having electrolyte injection
Dew.
4. a kind of cylindrical battery electrolyte according to claim 1 infiltrates structure, which is characterized in that the plastic-aluminum putamina
(3) it is made of PP, aluminium foil, CPP, it is open at one end for cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820935569.0U CN208272052U (en) | 2018-06-17 | 2018-06-17 | A kind of cylindrical battery electrolyte infiltration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820935569.0U CN208272052U (en) | 2018-06-17 | 2018-06-17 | A kind of cylindrical battery electrolyte infiltration structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208272052U true CN208272052U (en) | 2018-12-21 |
Family
ID=64690737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820935569.0U Active CN208272052U (en) | 2018-06-17 | 2018-06-17 | A kind of cylindrical battery electrolyte infiltration structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208272052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009693A (en) * | 2019-11-19 | 2020-04-14 | 江伟 | Internal fine adjustment cylindrical battery cell assembly process |
-
2018
- 2018-06-17 CN CN201820935569.0U patent/CN208272052U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009693A (en) * | 2019-11-19 | 2020-04-14 | 江伟 | Internal fine adjustment cylindrical battery cell assembly process |
| CN111009693B (en) * | 2019-11-19 | 2021-09-17 | 南京中比新能源科技有限公司 | Internal fine adjustment cylindrical battery cell assembly process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204596909U (en) | A kind of Novel button lithium ion battery | |
| CN106450467A (en) | Lithium supplementing method for energy storage device | |
| CN101794915B (en) | Lithium ion battery structure and preparation method thereof | |
| CN104037458A (en) | Manufacturing method of lithium ion energy storage device | |
| CN102290614B (en) | A kind of lithium ion battery and improve the method for its capacity | |
| CN104200999B (en) | A kind of lithium-ion energy storage device | |
| CN204793030U (en) | Mix anodal pole piece and lithium ion power batteries | |
| CN208272052U (en) | A kind of cylindrical battery electrolyte infiltration structure | |
| CN109616696A (en) | A kind of flexible foldable all-solid-state battery and its manufacturing method | |
| CN106876792A (en) | A kind of soft bag lithium ionic cell electrolyte wetting method, the chemical synthesizing method of soft bag lithium ionic cell | |
| CN204614884U (en) | A kind of power-type power, energy storage lithium ion battery and Li-ion batteries piles | |
| CN208589492U (en) | A kind of high capacity cylinder flexible packing lithium ion battery | |
| CN207398244U (en) | The cathode gasket of cylindrical lithium ion battery | |
| CN105720297A (en) | Lithium ion cell and preparation method thereof | |
| CN102427145A (en) | Preparation system for multi-element nano vanadium power battery | |
| CN203386613U (en) | Cylindrical super capacitor | |
| CN104538677A (en) | Flexibly-packaged lithium ion battery and preparation method thereof | |
| CN100372161C (en) | Zinc-manganese battery | |
| CN202405377U (en) | Manufacturing system for multi-element nano vanadium power battery | |
| CN202585549U (en) | Flexible-packaged lithium ion battery | |
| CN207398280U (en) | The repeatable lithium ion battery utilized | |
| CN102664284A (en) | Automatic preparation process for lithium iron phosphate power battery | |
| CN208923206U (en) | Lithium ion battery hard shell encapsulating structure | |
| CN208570703U (en) | A kind of cell jar | |
| CN207459021U (en) | A kind of Li-ion batteries piles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518105 4th Floor, Building A2, Liyuan Bay Industrial Park, 168 Honghu Road, Yanchuan, Songgang, Baoan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Greende Energy Group Co., Ltd. Address before: 518105 4th Floor, Building A2, Liyuan Bay Industrial Park, 168 Honghu Road, Yanchuan, Songgang, Baoan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Green's moral limited energy company |
|
| CP01 | Change in the name or title of a patent holder |