CN201233933Y - Pillar type lithium battery - Google Patents
Pillar type lithium battery Download PDFInfo
- Publication number
- CN201233933Y CN201233933Y CNU2008200035392U CN200820003539U CN201233933Y CN 201233933 Y CN201233933 Y CN 201233933Y CN U2008200035392 U CNU2008200035392 U CN U2008200035392U CN 200820003539 U CN200820003539 U CN 200820003539U CN 201233933 Y CN201233933 Y CN 201233933Y
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- China
- Prior art keywords
- cathode carrier
- electrolyte
- cathode
- carrier
- type lithium
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- Expired - Fee Related
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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 utility model discloses a cylindrical lithium battery which comprises a casing, an anode strip arranged in the casing, a cathode lead-out column, a diaphragm arranged on the inner layer of the anode strip, and an electrolyte. A cathode carrier is arranged in the space between the diaphragm and the cathode lead-out column; the cathode carrier is made of a carbonaceous material with a discontinuity structure; and an electrolyte flowing pore canal is formed on the cathode carrier. Through the cathode carrier made of the carbonaceous material with a discontinuity structure, and the electrolyte flowing pore canal formed on the cathode carrier, that is, taking the clearances between carbonaceous materials as electrolyte storage and transport channels, the utility model can not only transfers mass, but also provides enough space for accommodating solid products which are generated in the discharging process. The utility model overcomes the shortcomings of the prior cylindrical cathode carrier, such as poor electrolyte absorbing ability, difficult electrolyte conveying, and low utilization rate, enables the cathode carrier to become fully effective, and improves the utilization rate of the carrier and the electrolyte.
Description
Technical field
The utility model belongs to column type battery, is specifically related to a kind of column type lithium cell.
Background technology
Liquid cathode lithium cell comprises lithium-thionyl chloride (Li/SOCl
2), lithium sulfur dioxide (Li/SO
2) and lithium chlorosulfuric acid (Li/SO
2Cl) battery etc. has advantages such as specific energy height, power is big, cryogenic property is good, all has more widely at military, industry and civil area and uses.Different with the solid state cathode battery is, the positive active material of liquid cathode column type lithium cell also serves as electrolyte simultaneously and plays a role, its reduction reaction mainly occurs on the porous cathode carrier with certain catalytic activity, product then is deposited on the surface and the hole inside thereof of porous cathode carrier, thereby the structural design of negative electrode should be able to satisfy good ion mass transfer condition and electron conduction, has good electrical property to guarantee column type lithium cell.For lithium thionyl chloride cell, when exoelectrical reaction was carried out, discharging product can at first be deposited on cathode carrier pore entrance place, simultaneously, increase with depth of discharge, cathode carrier can progressively shrink hardening, thereby being unfavorable for the electrolyte mass transfer, electrochemical polarization obviously increases until battery dies.For the energy type lithium thionyl chloride cell, cathode carrier is many based on the cylindrical carbon pack arrangement at present, and what this structure often occurred is unusually, the depleted back of discharge negative electrode cylinder is divided into two parts, the complete hardening in lower part, top are then soft partially, are not fully used.Its reason is the lower part owing to be immersed in the electrolyte, feed flow is abundant, can play a role fully, but cylinder top also needs to rely on the cylinder absorption and transmits more electric liquid except that self draws part electrolyte, but because the lower part sufficient reacting, the duct is stopped up by product, cause the electric liquid difficulty of transportation that makes progress, cause the battery premature depletion, discharge capacity is on the low side.Though can be by adding NH
4HCO
3, pore creating material such as KCl, improve carbon bag pore structure, but with the deposition of discharging product, carbon bag utilance is still very low.
Summary of the invention
The purpose of this utility model is to provide a kind of cathode carrier liquid absorption big, and the column type lithium cell that the free electrolyte amount is few is to address the above problem.
The technical solution of the utility model is: column type lithium cell, it comprises housing, the anode strip of establishing in the housing, negative electrode is drawn post, the barrier film that the anode strip internal layer is established, electrolyte, barrier film and negative electrode are drawn in the space between the post and are provided with cathode carrier, and cathode carrier is made of the carbonaceous material with noncontinuity structure.
Described cathode carrier is piled up by the carbonaceous material of one or more cell configurations in graininess, bulk, sheet, thread, banded, spherical, the aciculiform and is formed, the gap that has a certain size between the carbonaceous material of cell configuration, can store electrolyte, also can be used as the electrolyte circulation duct.
The cathode carrier of the utility model by constituting by carbonaceous material with noncontinuity structure, cathode carrier is provided with the electrolyte circulation duct promptly with storage and the transmission channel of the gap between the carbonaceous material as electrolyte, not only can mass transfer, can also provide enough spaces to hold the solid product that discharge process produces.It is poor that it has overcome existing cylindrical cathode carrier self absorbent, transfusion difficulty, the shortcoming that utilance is low; It can make cathode carrier give full play to usefulness, improves carrier and electric liquid utilance.
Description of drawings
Fig. 1 directly loads the column type lithium cell structural representation that constitutes cathode carrier.
The column type lithium cell structural representation of Fig. 2 extrusion modling cathode carrier.
Fig. 3 cathode carrier schematic cross-section.
Fig. 4 extrusion modling cathode carrier schematic cross-section.
Embodiment
Present embodiment is used for the explanation to the utility model claim, and protection range of the present utility model is not limited to down array structure.
As shown in Figure 1, the anode strip of establishing in the housing 12, anode strip 2 is a metal lithium sheet, metal lithium sheet is pressed on housing 1 inwall.Anode strip 2 internal layers are established fibreglass diaphragm 3, and negative electrode is drawn post and covered the currect collecting net 5 that is welded on the current collector 6 at last current collector 6 and point by sintering and constitute.Be provided with cathode carrier 4 in the space between fibreglass diaphragm 3 and the currect collecting net 5.Cathode carrier 4 is made of the carbonaceous material with noncontinuity structure.Concrete cathode carrier is piled up by the carbonaceous material 9 of one or more cell configurations in graininess, bulk, sheet, thread, banded, spherical, the aciculiform and is formed, has duct 8 between the material 9 of cell configuration, can store electrolyte, also can be used as the electrolyte circulation duct.
Make 1/2AA energy type lithium thionyl chloride cell in direct filling positive mix mode, the cathode carrier structure of battery as shown in Figure 1.Positive mix carries out batch mixing by acetylene black, electrolytic copper powder, ptfe emulsion, deionized water and ethanol weight ratio 6:1:1:80:2, fully behind the mixing slurry is put into dry, the foaming of 200-280 ℃ of baking oven.The powder that foaming is good immersed in the 50-80 ℃ of isopropyl alcohol after 10-20 minute, rolled film after pouring out free isopropyl alcohol, and the wet cathode film THICKNESS CONTROL that rolls into is at 0.3-0.8mm.After cathode film dried naturally, in 200-280 ℃ of baking oven sintering 10-20 minute.Become length and width all to be not less than the pipe tobacco shape powder of 0.5mm the cathode film Mechanical Crushing that sinters, in 150-200 ℃ of vacuum drying oven dry 4-8 hour then.Take by weighing and fill 0.2-0.25g pipe tobacco shape material by every 1/2AA energy type lithium thionyl chloride cell, put well then and carry out gland, argon arc welding sealing, last fluid injection behind the barrier film.Make behind the battery the cathode carrier cross section as shown in Figure 3.
As shown in Figure 2, the anode strip of establishing in the housing 12, anode strip 2 is a metal lithium sheet, metal lithium sheet is pressed on housing 1 inwall.Anode strip 2 internal layers are established fibreglass diaphragm 3, and negative electrode is drawn post and covered the currect collecting net 5 that is welded on the current collector 6 at last current collector 6 and point by sintering and constitute.The cathode carrier of battery is that to become the cross section by the carbonaceous material 9 of the cell configuration of any or several shapes in graininess, bulk, sheet, thread, banded, spherical, the aciculiform by mechanical presses be any cylinder 7 in circle, annular, ellipse, square, hexagon and the polygon.Has electrolyte circulation duct 8 between the carbonaceous material 9 of cell configuration.
Make 1/2AA energy type lithium thionyl chloride cell with compression-moulding methods, the cathode carrier structure of battery is shown in Fig. 2,3.Positive mix carries out batch mixing by acetylene black, electrolytic copper powder, ptfe emulsion, deionized water and isopropyl alcohol weight ratio 18:2:1:4:5.Adopt the mechanical pelleting method, be made into the particle of particle diameter 0.1-5mm, spread in clean pallet, hang about one hour after, put into 60-100 ℃ of baking oven again and dry.Taking by weighing 0.25-0.3g graininess powder by every 1/2AA energy type lithium thionyl chloride cell then, is 9.0-9.5mm with its diameter of phi of packing into, and height h is extrusion modling in the cylinder type mould of 19mm, at last with 200-300 ℃ of sintering 25-30 minute.Moulding and the column type cathode carrier that sinters are put into battery case to be assembled, seals and fluid injection.The cathode carrier cross section of extrusion pressing type as shown in Figure 4.
Claims (5)
1, a kind of column type lithium cell, it comprises housing, the anode strip of establishing in the housing, negative electrode is drawn post, the barrier film that the anode strip internal layer is established, electrolyte, it is characterized in that barrier film and negative electrode are drawn in the space between the post is provided with cathode carrier, and cathode carrier is made of the carbonaceous material with noncontinuity structure.
2, column type lithium cell according to claim 1, it is characterized in that cathode carrier is piled up by the carbonaceous material of one or more cell configurations in graininess, bulk, sheet, thread, banded, spherical, the aciculiform forms, and has electrolyte storage and flow passage between the material of cell configuration.
3,, it is characterized in that cathode carrier is directly loaded by the material of any or several cell configurations in the graininess of bulk form, bulk, ball shape, sheet, thread, banded, spherical, the aciculiform to constitute as column type lithium cell as described in the claim 2.
4,, it is characterized in that it is any cylinder in circle, annular, ellipse, square, hexagon and the polygon that cathode carrier becomes the cross section by the carbonaceous material of the cell configuration of any or several shapes in graininess, bulk, sheet, thread, banded, spherical, the aciculiform by mechanical presses as column type lithium cell as described in the claim 2.
5, as column type lithium cell as described in claim 2 or 3 or 4, the particle diameter that it is characterized in that the material of cell configuration is 0.1～5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200035392U CN201233933Y (en) | 2008-03-06 | 2008-03-06 | Pillar type lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200035392U CN201233933Y (en) | 2008-03-06 | 2008-03-06 | Pillar type lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233933Y true CN201233933Y (en) | 2009-05-06 |
Family
ID=40620322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200035392U Expired - Fee Related CN201233933Y (en) | 2008-03-06 | 2008-03-06 | Pillar type lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201233933Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814613A (en) * | 2010-04-14 | 2010-08-25 | 上海永慰自动化工程有限公司 | Lithium thionyl chloride cell and manufacturing method thereof |
| CN102339973A (en) * | 2011-10-19 | 2012-02-01 | 河南迈奇能源技术有限公司 | Method for preparing positive post for lithium battery |
| CN102468514A (en) * | 2010-11-10 | 2012-05-23 | 深圳市斯盛能源科技有限公司 | Novel lithium battery and production method thereof |
| CN107039625A (en) * | 2016-12-09 | 2017-08-11 | 德阳九鼎智远知识产权运营有限公司 | A kind of lithium battery pole ear and its lithium battery comprising the lug |
-
2008
- 2008-03-06 CN CNU2008200035392U patent/CN201233933Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814613A (en) * | 2010-04-14 | 2010-08-25 | 上海永慰自动化工程有限公司 | Lithium thionyl chloride cell and manufacturing method thereof |
| CN102468514A (en) * | 2010-11-10 | 2012-05-23 | 深圳市斯盛能源科技有限公司 | Novel lithium battery and production method thereof |
| CN102339973A (en) * | 2011-10-19 | 2012-02-01 | 河南迈奇能源技术有限公司 | Method for preparing positive post for lithium battery |
| CN107039625A (en) * | 2016-12-09 | 2017-08-11 | 德阳九鼎智远知识产权运营有限公司 | A kind of lithium battery pole ear and its lithium battery comprising the lug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WUHAN LISUN (HUOJU) POWER SOURCE CO., LTD. Free format text: FORMER OWNER: ICTA LTD. Effective date: 20110517 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: BRITISH VIRGIN ISLANDS TO: 430223 LISUN POWER SOURCES CO., LTD., DAXUEYUAN ROAD, JIANGXIA AVENUE, CHANGCHENG INNOVATION INDUSTRIAL PARK, DONGHU HIGH-TECH. DEVELOPMENT AREA |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110517 Address after: 430223 East Lake high tech Development Zone, Jiangxia Industrial Park Road the Great Wall Innovation University College Road Lixing power supply company Patentee after: Lixing (Huoju) Power Co. Ltd., Wuhan Address before: british virgin islands Patentee before: Icta Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090506 Termination date: 20140306 |