CN102856566A - Cell unit for thermal cell and its forming process - Google Patents
Cell unit for thermal cell and its forming process Download PDFInfo
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- CN102856566A CN102856566A CN2011101823360A CN201110182336A CN102856566A CN 102856566 A CN102856566 A CN 102856566A CN 2011101823360 A CN2011101823360 A CN 2011101823360A CN 201110182336 A CN201110182336 A CN 201110182336A CN 102856566 A CN102856566 A CN 102856566A
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- cell
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- single cell
- negative plate
- graphite film
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Abstract
The invention provides a cell unit for thermal cell. The cell unit comprises a three-component structure and an anode sheet. The three-component structure is formed by spreading a heating material, a cathode material and an isolation material, and pressing. The anode sheet is formed by pressing an anode material and a graphite film of the same size. The invention also provides a forming process for the cell unit.
Description
Technical field
The invention belongs to thermal cell manufacturing technology field, be specifically related to a kind of single cell of thermo battery, in addition, the invention still further relates to the moulding process of aforementioned single cell of thermo battery.
Background technology
Cell is core component and the elementary cell of thermal cell.The most general monomer battery structure is sheet type structure, and up-to-date version is four combined structures.Four combined structures are with heating material and positive pole, separator, negative pole compressing structure once.Its preparation method is: successively heating material, positive electrode, isolated material are shakeout in mould, be sieved into negative material on the upper strata by screen cloth at last, then once be pressed into four unification cells.See the 222nd page in the 1st edition " mechanism of new electrochemical power sources Technology Conspectus " the 6th chapter May in 2007, chief editor: Li Guoxin.Among the four combined structure cell preparation methods, tapered distribution after negative material is sieved by screen cloth, negative material skewness in the cell, the active matter utilance is not high.
Summary of the invention
Technical problem to be solved by this invention is for four combined structure cell negative material skewness, shortcoming that the active matter utilance is not high, proposes a kind of single cell of thermo battery of brand new, and the moulding process of this single cell of thermo battery is provided.The present invention reaches the purpose that makes negative material evenly distribute, improve the active matter utilance by changing the negative material forming method.
Single cell of thermo battery provided by the invention, be assembled by Sandwich structure and negative plate, wherein, Sandwich structure is shakeout compressing by heating material, positive electrode and isolated material, and negative plate shakeouts compressing by negative material and onesize graphite film.
Aforementioned single cell of thermo battery moulding process provided by the invention comprises the steps: successively heating material, positive electrode and isolated material to be shakeout and suppress in mould, forms Sandwich structure; In mould, negative material is shakeout, be pressed into negative plate after putting again onesize graphite film; Aforementioned Sandwich structure and negative plate are assembled into single cell of thermo battery.
With respect to prior art, the present invention is decomposed into the three-plus-one structure with four combined structures, is about to the negative pole powder and suppresses separately, and other three kinds of materials are once suppressed, and cell forms with negative plate by three-in-one.Negative plate moulding cancellation screen cloth directly shakeouts negative material in mould, is pressed into negative plate after putting onesize graphite film again.Under the supporting role of graphite film, negative plate is smooth and solid, can satisfy the needs of assembly manipulation, has both kept structural strength, and negative material is evenly distributed, and is conducive to improve the active matter utilance, and cell production qualification rate also is improved.
Description of drawings
Fig. 1 is that { upper strata is graphite film to moulding negative plate photo in kind, and main body is the negative material powder, and its fracture strength can reach more than the 7MPa; The heavy 1.66g of negative material, mould diameter of phi 44mm, fracture strength was 7.48MPa} when briquetting pressure was identical with four combined structure cells.
Embodiment
Below in conjunction with the drawings and specific embodiments, further set forth the present invention.These embodiment are interpreted as only being used for explanation the present invention and are not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalences change and modification falls into claim limited range of the present invention equally.
In the single cell of thermo battery moulding process that the preferred embodiment of the present invention provides, in mould, successively heating material, positive electrode and isolated material are shakeout and suppress, form Sandwich structure; In mould, negative material is shakeout, be pressed into negative plate after putting again onesize graphite film; Aforementioned Sandwich structure and negative plate are assembled into single cell of thermo battery.
Present embodiment is 1.0g/cm in the density of graphite film
3, thickness is to make negative plate as shown in Figure 1 under the condition of 0.05～0.08mm, negative material is fully even among the figure.
Sandwich structure and negative plate that the aforementioned moulding process of present embodiment obtains can assemble the formation single cell of thermo battery.
Adopt this negative plate forming technique development RL series of heat battery.The cell diameter is Φ 68mm, the heavy 1.86g of negative material.The thick 0.06mm of graphite film.Through verification experimental verification, its electric property is as shown in the table.Specific energy reaches 55Wh/kg.
Table 1 RL series of heat cell electrical performance
Claims (3)
1. single cell of thermo battery, it is characterized in that, be assembled by Sandwich structure and negative plate, wherein, Sandwich structure is shakeout compressing by heating material, positive electrode and isolated material, negative plate shakeouts compressing by negative material and onesize graphite film.
2. single cell of thermo battery according to claim 1 is characterized in that, the density of graphite film is 1.0g/cm
3, thickness is 0.05～0.08mm.
3. a single cell of thermo battery moulding process is characterized in that, comprises the steps: successively heating material, positive electrode and isolated material to be shakeout and suppress in mould, forms Sandwich structure; In mould, negative material is shakeout, be pressed into negative plate after putting again onesize graphite film; Aforementioned Sandwich structure and negative plate are assembled into single cell of thermo battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101823360A CN102856566A (en) | 2011-06-30 | 2011-06-30 | Cell unit for thermal cell and its forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101823360A CN102856566A (en) | 2011-06-30 | 2011-06-30 | Cell unit for thermal cell and its forming process |
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| Publication Number | Publication Date |
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| CN102856566A true CN102856566A (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011101823360A Pending CN102856566A (en) | 2011-06-30 | 2011-06-30 | Cell unit for thermal cell and its forming process |
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| CN (1) | CN102856566A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293763A (en) * | 2017-06-16 | 2017-10-24 | 沈阳崇华电子科技有限公司 | One kind carries the poroid filming switch-board thermoelectric pool preparation method in center |
| CN108258259A (en) * | 2018-01-11 | 2018-07-06 | 北方特种能源集团有限公司西安庆华公司 | A kind of switch-board thermoelectric pond drawing method |
| CN108318369A (en) * | 2017-12-26 | 2018-07-24 | 中国电子科技集团公司第十八研究所 | Method for testing stability of positive plate for thermal battery |
| CN109742417A (en) * | 2018-11-15 | 2019-05-10 | 上海空间电源研究所 | The preparation method of single cell of thermo |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114805A (en) * | 1990-07-30 | 1992-05-19 | The United States Of America As Represented By The Secretary Of The Army | High temperature molten salt electrochemical cell |
| WO2006046245A1 (en) * | 2004-10-28 | 2006-05-04 | Rafael-Armament Development Authority Ltd. | Heat sources for thermal batteries |
-
2011
- 2011-06-30 CN CN2011101823360A patent/CN102856566A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5114805A (en) * | 1990-07-30 | 1992-05-19 | The United States Of America As Represented By The Secretary Of The Army | High temperature molten salt electrochemical cell |
| WO2006046245A1 (en) * | 2004-10-28 | 2006-05-04 | Rafael-Armament Development Authority Ltd. | Heat sources for thermal batteries |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293763A (en) * | 2017-06-16 | 2017-10-24 | 沈阳崇华电子科技有限公司 | One kind carries the poroid filming switch-board thermoelectric pool preparation method in center |
| CN107293763B (en) * | 2017-06-16 | 2019-03-26 | 沈阳崇华电子科技有限公司 | One kind having the poroid filming switch-board thermoelectric pool preparation method in center |
| CN108318369A (en) * | 2017-12-26 | 2018-07-24 | 中国电子科技集团公司第十八研究所 | Method for testing stability of positive plate for thermal battery |
| CN108258259A (en) * | 2018-01-11 | 2018-07-06 | 北方特种能源集团有限公司西安庆华公司 | A kind of switch-board thermoelectric pond drawing method |
| CN109742417A (en) * | 2018-11-15 | 2019-05-10 | 上海空间电源研究所 | The preparation method of single cell of thermo |
| CN109742417B (en) * | 2018-11-15 | 2021-08-10 | 上海空间电源研究所 | Preparation method of thermal battery monomer |
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Application publication date: 20130102 |