CN106684399A - Manufacturing method of inverted button cell - Google Patents
Manufacturing method of inverted button cell Download PDFInfo
- Publication number
- CN106684399A CN106684399A CN201710042233.1A CN201710042233A CN106684399A CN 106684399 A CN106684399 A CN 106684399A CN 201710042233 A CN201710042233 A CN 201710042233A CN 106684399 A CN106684399 A CN 106684399A
- Authority
- CN
- China
- Prior art keywords
- electrolyte
- button cell
- pole piece
- piece
- placement
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a manufacturing method of an inverted button cell. The manufacturing method comprises the steps of pole piece placement, initially adding of electrolyte, placement of a lithium sheet, secondly adding of the electrolyte, placement of a gasket and an elastic sheet, and compacting of a positive electrode shell to finish the manufacturing of the inverted button cell. By adopting the manufacturing method, the pole piece can be fully attached to a negative electrode shell by fully utilizing the deadweights of the lithium sheet, the gasket and the elastic sheet, and the problems of outflow of the electrolyte and deviation of the pole piece are solved since the positive electrode shell does not need to be overturned, so that the probability of short circuit of the button cell is solved. By adopting the manufacturing method, the pole piece is taken as a positive electrode of the inverted button cell, the lithium sheet is taken as a negative electrode of the inverted button cell, the pole piece is placed into the negative electrode shell, the electrolyte is dripped, and a diaphragm, the lithium sheet, the gasket and the elastic sheet are covered once again, so that direct contact of the pole piece with the positive electrode shell can be effectively avoided, and the probability of short circuit of the inverted button cell is lowered.
Description
Technical field
The present invention relates to a kind of preparation method of battery, and in particular to a kind of preparation method of trans button cell.
Background technology
Traditional button cell places test pole piece and barrier film in anode cover, then instills 2-3 drop electrolyte；In negative electrode casing
Shell fragment, pad and lithium piece are inside sequentially placed, finally anode cover is buckled in outside negative electrode casing, and it is using tablet machine that both positive and negative polarity shell is abundant
Compress, with liquid-leakage preventing.
During anode cover turn-over is covered in outside negative electrode casing, showing for electrolyte outflow inevitably occurs
As.In addition, the compacted density phenomenon for curling occur easier than larger pole piece, compacted density is more than 2.5g/cm3, or even can support
Play barrier film.When anode cover is covered in into negative electrode casing, the barrier film on the one hand propped up can not be effectively isolated test pole piece and lithium piece, make
Into pole piece and lithium piece directly contact；On the other hand, because barrier film is propped up so that pole piece can not effectively fit anode cover,
During turn-over, pole piece is susceptible to skew so that pole piece is directly contacted with negative electrode casing, so as to cause the pole of big compacted density
Piece is easier the phenomenon that is short-circuited.
The content of the invention
Present invention aims to the deficiencies in the prior art, now providing one kind can effectively overcome traditional preparation methods
The defect of leakage and short circuit is easily caused, and the system of the trans button cell of the success rate of button cell preparation can be effectively improved
Preparation Method.
To solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of preparation method of trans button cell,
Its innovative point is：Through pole piece placement, the first addition of electrolyte, the placement of lithium piece, the secondary addition of electrolyte, pad and
The placement of shell fragment, the compacting step of positive pole housing, complete the preparation of trans button cell；It is described to comprise the following steps that：
（1）The placement of pole piece：Pole piece is put in negative electrode casing body, then a barrier film is placed in pole piece upper end；
（2）The first addition of electrolyte：Add electrolyte in the pole piece and barrier film for placing, make electrolyte by pole piece and barrier film
Fully infiltrated；
（3）The placement of lithium piece：Lithium piece is placed on into the upper end of barrier film；
（4）The secondary addition of electrolyte：Add a certain amount of electrolyte on lithium piece surface；
（5）The placement of pad and shell fragment：Pad and shell fragment are placed sequentially in into the upper end of lithium piece；
（6）The compacting of positive pole housing：Positive pole housing and negative pole housing are carried out by completely densified using tablet machine.
Further, the step（2）The first addition of middle electrolyte is 3-4 drops.
Further, the step（4）The secondary addition of middle electrolyte is 2-3 drops.
Further, the step（6）The pressure size of middle tablet machine is 60-65Kg/cm2。
Beneficial effects of the present invention are as follows：The present invention can make full use of the deadweight of lithium piece, pad and shell fragment, by pole piece and
Negative pole housing is fitted completely, and positive pole housing has what electrolyte outflow and pole piece shifted due to not needing turn-over, not
Problem, so as to reduce the possibility that button cell is short-circuited.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Specific embodiment
Hereinafter embodiments of the present invention are illustrated by particular specific embodiment, those skilled in the art can be by this explanation
Content disclosed by book understands easily other advantages and effect of the present invention.
It is illustrated in figure 1 the overall structure diagram of the trans button cell of the present invention, a kind of trans button cell, by bearing
Pole housing 2, pole piece 3, barrier film 4, lithium piece 5, pad 6, shell fragment 7 and positive pole housing 1, negative pole housing 2, pole piece 3, barrier film 4, lithium piece 5,
Pad 6, shell fragment 7 and positive pole housing 1 are sequentially placed, using pole piece 3 as trans button cell positive pole, using lithium piece 5 as trans
The negative pole of button cell, pole piece 3 is put in negative electrode casing 2, instills electrolyte, and barrier film 4, lithium piece 5, pad 6 and bullet are covered again
Piece 7, can be prevented effectively from pole piece 3 and the directly contact of positive pole housing 1, reduce the possibility that trans button cell is short-circuited.
A kind of preparation method of trans button cell, places through pole piece 3, the first addition of electrolyte, lithium piece 5 are put
Put, the secondary addition of electrolyte, the placement of pad 6 and shell fragment 7, the compacting step of positive pole housing 1, complete trans button cell
Prepare；Comprise the following steps that：
（1）The placement of pole piece 3：Pole piece 3 is put in negative pole housing 2, then a barrier film 4 is placed in the upper end of pole piece 3；
（2）The first addition of electrolyte：Add electrolyte in the pole piece 3 and barrier film 4 for placing, make electrolyte by pole piece 3 with
Barrier film 4 is fully infiltrated, and the first addition of electrolyte is 3-4 drops；
（3）The placement of lithium piece 5：Lithium piece 5 is placed on into the upper end of barrier film 4；
（4）The secondary addition of electrolyte：Add a certain amount of electrolyte on the surface of lithium piece 5, the secondary addition of electrolyte is 2-3
Drop；
（5）The placement of pad 6 and shell fragment 7：Pad 6 and shell fragment 7 are placed sequentially in into the upper end of lithium piece 5；
（6）The compacting of positive pole housing 1：Positive pole housing 1 and negative pole housing 2 are carried out by completely densified using tablet machine, tablet machine
Pressure size is 60-65Kg/cm2。
The present invention can make full use of the deadweight of lithium piece 5, pad 6 and shell fragment 7, and pole piece 3 and negative pole housing 2 are pasted completely
Close, and positive pole housing 1 has that electrolyte flows out and pole piece 3 shifts due to not needing turn-over, or not so as to reduce
The possibility that button cell is short-circuited.
Above-described embodiment is presently preferred embodiments of the present invention, is not the restriction to technical solution of the present invention, as long as
Without the technical scheme that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention
Rights protection scope in.
Claims (4)
1. a kind of preparation method of trans button cell, it is characterised in that：Through pole piece placement, the first addition of electrolyte, lithium
The placement of piece, the secondary addition of electrolyte, the placement of pad and shell fragment, the compacting step of positive pole housing, complete trans button electricity
The preparation in pond；It is described to comprise the following steps that：
The placement of pole piece：Pole piece is put in negative electrode casing body, then a barrier film is placed in pole piece upper end；
The first addition of electrolyte：Add electrolyte in the pole piece and barrier film for placing, make electrolyte enter pole piece with barrier film
Row fully infiltration；
The placement of lithium piece：Lithium piece is placed on into the upper end of barrier film；
The secondary addition of electrolyte：Add a certain amount of electrolyte on lithium piece surface；
The placement of pad and shell fragment：Pad and shell fragment are placed sequentially in into the upper end of lithium piece；
The compacting of positive pole housing：Positive pole housing and negative pole housing are carried out by completely densified using tablet machine.
2. the preparation method of a kind of trans button cell according to claim 1, it is characterised in that：The step（2）In
The first addition of electrolyte is 3-4 drops.
3. the preparation method of a kind of trans button cell according to claim 1, it is characterised in that：The step（4）In
The secondary addition of electrolyte is 2-3 drops.
4. the preparation method of a kind of trans button cell according to claim 1, it is characterised in that：The step（6）In
The pressure size of tablet machine is 60-65Kg/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042233.1A CN106684399A (en) | 2017-01-20 | 2017-01-20 | Manufacturing method of inverted button cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710042233.1A CN106684399A (en) | 2017-01-20 | 2017-01-20 | Manufacturing method of inverted button cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106684399A true CN106684399A (en) | 2017-05-17 |
Family
ID=58859477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710042233.1A Pending CN106684399A (en) | 2017-01-20 | 2017-01-20 | Manufacturing method of inverted button cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106684399A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808101A (en) * | 2018-06-13 | 2018-11-13 | 中国科学院宁波材料技术与工程研究所 | A kind of lithium ion battery and preparation method thereof |
| CN109659490A (en) * | 2019-01-07 | 2019-04-19 | 宁波必霸能源有限公司 | Button cell cathode of lithium molding equipment and forming method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5618373A (en) * | 1979-07-24 | 1981-02-21 | Hitachi Maxell Ltd | Battery of nonaqueous electrolyte |
| CN1393038A (en) * | 2000-10-13 | 2003-01-22 | 松下电器产业株式会社 | Flat square battery |
| CN103840216A (en) * | 2014-03-16 | 2014-06-04 | 辉县市玉杰科技有限公司 | Manufacturing method for lithium ion buckle type battery |
-
2017
- 2017-01-20 CN CN201710042233.1A patent/CN106684399A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5618373A (en) * | 1979-07-24 | 1981-02-21 | Hitachi Maxell Ltd | Battery of nonaqueous electrolyte |
| CN1393038A (en) * | 2000-10-13 | 2003-01-22 | 松下电器产业株式会社 | Flat square battery |
| CN103840216A (en) * | 2014-03-16 | 2014-06-04 | 辉县市玉杰科技有限公司 | Manufacturing method for lithium ion buckle type battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808101A (en) * | 2018-06-13 | 2018-11-13 | 中国科学院宁波材料技术与工程研究所 | A kind of lithium ion battery and preparation method thereof |
| CN109659490A (en) * | 2019-01-07 | 2019-04-19 | 宁波必霸能源有限公司 | Button cell cathode of lithium molding equipment and forming method |
| CN109659490B (en) * | 2019-01-07 | 2024-03-26 | 宁波必霸能源有限公司 | Button cell lithium negative electrode forming equipment and forming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |
|
| RJ01 | Rejection of invention patent application after publication |