CN1043042A - The thermal cell group of no crest voltage - Google Patents
The thermal cell group of no crest voltage Download PDFInfo
- Publication number
- CN1043042A CN1043042A CN 88108074 CN88108074A CN1043042A CN 1043042 A CN1043042 A CN 1043042A CN 88108074 CN88108074 CN 88108074 CN 88108074 A CN88108074 A CN 88108074A CN 1043042 A CN1043042 A CN 1043042A
- Authority
- CN
- China
- Prior art keywords
- thermal cell
- high temperature
- cell group
- thermal
- heating plate
- 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
Links
Images
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
- H01M6/30—Deferred-action cells
- H01M6/36—Deferred-action cells containing electrolyte and made operational by physical means, e.g. thermal cells
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
A kind ofly make positive active material with ferrous disulfide, the thermal cell group of no crest voltage.Utilization slows down the effect of high temperature thermal shocking to the monomer thermal cell, principle with control thermal cell group crest voltage value, in the battery pile of thermal cell group just. additional high temperature insulating sheet between negative pole drainage sheet and the end heating plate, or, with brace two adjacent monomer thermal cells are electrically connected then at additional high temperature insulating sheet between the positive plate and heating plate of battery pile inside, between negative pole currect collecting sheet and the heating plate.When thermal cell igniting activates, one or several monomer thermal cells are lagged behind enter operating state, and by regulating the material and the thickness of high temperature insulating sheet.Control hysteresis time length is to eliminate the crest voltage of thermal cell group fully.
Description
The present invention relates to do the thermal cell group of positive active material, no crest voltage with ferrous disulfide.
The thermal cell group, when particularly doing the thermal cell group discharge beginning of positive active material with ferrous disulfide, on discharge voltage time curve, always to differ in length for some time, surpass 1 volt of due to voltage spikes of balanced voltage to the three ten-day period of hot season, people claim that this section voltage is crest voltage.Crest voltage is a big shortcoming of thermal cell, and it greatly reduces the utilance of electrode material, has lost Li(Si)/FeS
2The advantage that the thermal cell energy density is high.Do not force down or eliminate crest voltage, thermal cell just is unsuitable on the high equipment of input voltage required precision and uses.For this reason, document (is seen S.C.Levy " FeS
2The research of the irregular crest voltage of thermal cell ") (SAND79-0090) .(J.Q.Searcy " FeS in the thermal cell
2Some side reaction of negative electrode and the research of starting voltage transition ") (SAND80-2341) method of forcing down crest voltage of record have: add the higher material of negative potential in the anodal material; as magnesium powder, zinc powder; with the bigger curing iron powder compacting positive plate of granularity, with hydrofluoric acid wash ferrous disulfide powder.After taking above-mentioned measure, Li(Si)/FeS
2The discharge peak threshold voltage of thermal cell more or less reduces, but can not eliminate fully.U.S.Patent Application6-872,718 propose improve Li/FeS
2The method of thermal cell discharging voltage balance also fails to eliminate fully discharge due to voltage spikes when initial of thermal cell.
The purpose of this invention is to provide a kind of thermal cell group of making positive active material, no crest voltage with ferrous disulfide.
Feature of the present invention is to slow down the effect of high temperature thermal shocking to the monomer thermal cell, the crest voltage of control thermal cell group.Thermal cell is by end heating plate, interpolation 3%(wt) CaSi
2The ferrous disulfide positive pole, lithium (silicon) alloy anode, barrier film, stainless steel negative pole currect collecting sheet and be placed in two heating plates between the monomer thermal cell and pile up formation, feature of the present invention in the battery pile of thermal cell group just is, between negative pole drainage sheet and the end heating plate, or between the positive plate and heating plate of battery pile inside, additional high temperature insulating sheet between negative pole currect collecting sheet and the heating plate, with brace two adjacent monomer thermal cells are electrically connected then, slow down the high temperature thermal shocking that produces when the battery igniting activates, one or several monomer thermal cells are lagged behind enter operating state, by regulating the material thickness of high temperature insulating sheet, come control hysteresis time length, eliminate crest voltage.
Advantage of the present invention is to arbitrary thermal cell system, under the situation that does not relate to original battery manufacturing process, adopt the method for adding the high temperature insulating sheet to eliminate the crest voltage of thermal cell group, only need to regulate material, thickness and the segregate monomer thermal cell number of high temperature insulating sheet, method is easy, has also improved the use specific energy of thermal cell and the smoothness of discharge voltage simultaneously significantly.
Further set forth the features and advantages of the present invention below in conjunction with drawings and Examples.
Fig. 1-drainage sheet outside is the thermal cell Battery pack heap cutaway view of additional high temperature insulating sheet not;
Fig. 1 a-drainage sheet outside is the thermal cell group constant current discharge curve of additional high temperature insulating sheet not;
The thermal cell Battery pack heap cutaway view of Fig. 2-additional high temperature insulating sheet in the negative pole drainage sheet outside;
The thermal cell group constant current discharge curve of the additional high temperature insulating sheet in Fig. 2 a-negative pole drainage sheet outside;
Fig. 3-positive and negative electrode drainage sheet outside all adds the thermal cell Battery pack heap cutaway view of high temperature insulating sheet;
Fig. 3 a-positive and negative electrode drainage sheet outside all adds the thermal cell group constant current discharge curve of high temperature insulating sheet;
Fig. 4-thermal cell Battery pack heap is inner, and the thermal cell Battery pack that is electrically connected with brace behind the additional high temperature insulating sheet between positive pole and heating plate is piled cutaway view;
Fig. 1 represents the conventional thermal cell group of the laminated structure that an operating voltage is 28 ± 2.8V.Its anodal drainage sheet (2) all directly contacts with end heating plate (1) with negative pole drainage sheet (6) outside, and positive and negative electrode drainage sheet inboard contacts with negative plate (5) with positive plate (3) respectively.Form a monomer thermal cell by positive plate (3), diaphragm (4), negative plate (5) and monomer heating plate (9).Pile up the battery pile that is composed in series 28V by 15 monomer thermal cells, wrap around the battery pile naked on heat-barrier material, two ends pad is gone up heat insulation, is contained in the battery case, battery cover and shell is welded together formation thermal cell set product.This thermal cell group is with 433mA/cm
2During the current density discharge, its discharge curve is seen Fig. 1 a.The discharge peak threshold voltage reaches 32.5V, and discharge is 115 seconds by the operating time of 25.2V.The battery pile that Fig. 2 represents and Fig. 1's is basic identical, difference has just added the thick asbestos scraps of paper or the sour aluminum fiber felt (7) of 0.6mm in negative pole drainage sheet (6) outside, heating plate is not directly contacted with negative pole drainage sheet, i.e. the monomer thermal cell of anticathode drainage sheet inboard slows down high temperature thermal shocking.This thermal cell group is with 433mA/cm
2The current density discharge, discharge curve is seen Fig. 2 a.This moment, starting voltage only was 29.8V, and crest voltage disappears, and was 140 seconds by the discharge time of 25.2V.Battery pile and Fig. 2 that Fig. 3 represents are basic identical, difference only is all to have added the thick asbestos scraps of paper or the alumina silicate fiber felt (7) of 0.6mm at the anodal drainage sheet (2) and negative pole drainage sheet (6) outside, makes positive and negative electrode drainage sheet inboard respectively have a monomer thermal cell to slow down high temperature thermal shocking.This battery is equally with 433mA/cm
2The current density discharge, discharge curve is seen Fig. 3 a.Not only eliminated crest voltage this moment, and also lower slightly slightly than steady voltage, and starting voltage is 29.2V, is 135 seconds by 25.2V discharge time.Fig. 4 is in battery pile inside, between positive plate (3) and the monomer heating plate (9), or after adding high temperature insulating sheet (7) between negative pole currect collecting sheet (8) and the monomer heating plate (9), use brace (10) that two adjacent monomer thermal cells are electrically connected the battery pile that the back is formed again, can reach equally and slow down high temperature thermal shocking, eliminate the purpose of the voltage of peak value.Compare with the thermal cell group of not eliminating crest voltage having eliminated crest voltage, the former use specific energy can improve more than 30% than the latter.
Above-mentioned high temperature insulating sheet material, except that asbestos paper, alumina silicate fiber felt, also available bright gram (Mink) heat shield, the anti-glass mat of high temperature and insulating moulding coating and can and store compatible material more than 550 ℃ with thermal cell work.
With the thermal cell system (as lithium alloy/ferrous disulfide, lithium alloy/dichloride copper, calcium/calcium chromate) difference, battery structure (as the sheet type and the cup type) different, electrode, the prescription of barrier film and heating plate and design are (as the granularity of material, content, additive level, the thickness of slice, thin piece) difference, and the difference of battery power discharge rate, the height and the duration of thermal cell crest voltage also have nothing in common with each other, eliminate the crest voltage of different thermal cells, between anodal drainage sheet and end heating plate, or between negative pole drainage sheet and the end heating plate, or between the positive plate and heating plate of battery pile inside, the thickness of the high temperature insulating sheet that is added between negative pole currect collecting sheet and the heating plate is also inequality.For example, discharge current density is 400mA/cm
2Lithium (silicon)/ferrous disulfide thermal cell, when adopting 300 purpose ferrous disulfides (not add 3%CaSi
2) when making positive plate, the thick asbestos scraps of paper or the alumina silicate fibre felt of each additional 0.9mm could be eliminated crest voltage between positive and negative electrode drainage sheet and end heating plate; When adopting 100 purpose ferrous disulfides (not add 3%CaSi
2) when making positive plate, the thick asbestos scraps of paper or the alumina silicate fibre felt of each additional 0.6mm just can be eliminated crest voltage fully between positive and negative electrode drainage sheet and end heating plate; When adopting 100 purpose ferrous disulfides (to add 3%CaSi
2) when making positive plate, the thick asbestos scraps of paper or the alumina silicate fibre felt of each additional 0.3mm just can be eliminated crest voltage fully between positive and negative electrode drainage sheet and end heating plate.
Claims (3)
1, a kind ofly makes the thermal cell group of positive active material, no crest voltage, by the end heating plate, add 3% (wt) CaSi with ferrous disulfide
2Ferrous disulfide positive pole, lithium (silicon) alloy anode, diaphragm, stainless steel negative pole currect collecting sheet and be placed in two heating plates between the monomer thermal cell and pile up and form, feature of the present invention is between the positive and negative electrode drainage sheet of the battery pile of thermal cell group and end heating plate, or, with brace two adjacent monomer thermal cells are electrically connected then at additional high temperature insulating sheet between the positive plate and heating plate of battery pile inside, between negative pole currect collecting sheet and the heating plate.
2, thermal cell group according to claim 1, the material that it is characterized in that the high temperature insulating sheet are asbestos paper, alumina silicate fiber felt, glass mat, reach high temperature insulating mould coating.
3, thermal cell group according to claim 1 and 2, the thickness that it is characterized in that the high temperature insulating sheet is 0.1～1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88108074 CN1043042A (en) | 1988-11-29 | 1988-11-29 | The thermal cell group of no crest voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88108074 CN1043042A (en) | 1988-11-29 | 1988-11-29 | The thermal cell group of no crest voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1043042A true CN1043042A (en) | 1990-06-13 |
Family
ID=4834911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88108074 Pending CN1043042A (en) | 1988-11-29 | 1988-11-29 | The thermal cell group of no crest voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1043042A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372155C (en) * | 2004-08-09 | 2008-02-27 | 惠州市德赛能源科技有限公司 | Production of positive active material of lithium battery |
| CN100380830C (en) * | 2001-11-29 | 2008-04-09 | 西门子公司 | Activation system |
| CN102569837A (en) * | 2010-12-29 | 2012-07-11 | 中国电子科技集团公司第十八研究所 | Preparation method for high-voltage arc heat elimination battery |
| CN107732267A (en) * | 2017-09-22 | 2018-02-23 | 上海空间电源研究所 | The big L/D ratio thermal cell used under hot environment |
| CN108808031A (en) * | 2018-05-28 | 2018-11-13 | 贵州梅岭电源有限公司 | A kind of novel thermal cell internal temperature control structure |
| CN108878917A (en) * | 2018-06-28 | 2018-11-23 | 贵州梅岭电源有限公司 | A kind of thermal cell sustained release heating plant |
| CN109888151A (en) * | 2019-02-01 | 2019-06-14 | 贵州梅岭电源有限公司 | A kind of hot partition method of closed type hot battery |
| CN114824664A (en) * | 2022-02-25 | 2022-07-29 | 中国电子科技集团公司第十八研究所 | Thermal buffer layer base material and application method thereof in thermal battery |
-
1988
- 1988-11-29 CN CN 88108074 patent/CN1043042A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100380830C (en) * | 2001-11-29 | 2008-04-09 | 西门子公司 | Activation system |
| CN100372155C (en) * | 2004-08-09 | 2008-02-27 | 惠州市德赛能源科技有限公司 | Production of positive active material of lithium battery |
| CN102569837A (en) * | 2010-12-29 | 2012-07-11 | 中国电子科技集团公司第十八研究所 | Preparation method for high-voltage arc heat elimination battery |
| CN102569837B (en) * | 2010-12-29 | 2014-06-11 | 中国电子科技集团公司第十八研究所 | Preparation method for high-voltage arc heat elimination battery |
| CN107732267A (en) * | 2017-09-22 | 2018-02-23 | 上海空间电源研究所 | The big L/D ratio thermal cell used under hot environment |
| CN107732267B (en) * | 2017-09-22 | 2020-03-24 | 上海空间电源研究所 | Thermal battery with large length-diameter ratio used in high-temperature environment |
| CN108808031A (en) * | 2018-05-28 | 2018-11-13 | 贵州梅岭电源有限公司 | A kind of novel thermal cell internal temperature control structure |
| CN108878917A (en) * | 2018-06-28 | 2018-11-23 | 贵州梅岭电源有限公司 | A kind of thermal cell sustained release heating plant |
| CN108878917B (en) * | 2018-06-28 | 2020-10-09 | 贵州梅岭电源有限公司 | Slow-release heating device for thermal battery |
| CN109888151A (en) * | 2019-02-01 | 2019-06-14 | 贵州梅岭电源有限公司 | A kind of hot partition method of closed type hot battery |
| CN114824664A (en) * | 2022-02-25 | 2022-07-29 | 中国电子科技集团公司第十八研究所 | Thermal buffer layer base material and application method thereof in thermal battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100399620C (en) | Valve control type lead acid accumulator for metro vehicle | |
| CA2154212A1 (en) | Rechargeable Batteries Having a Specific Anode and Process for the Production of Them | |
| EP1249882A4 (en) | Binder for use in electrolyte of lithium ion secondary cell and use thereof | |
| CN111540910A (en) | Pole piece, battery core and battery | |
| NZ330628A (en) | Lead-acid battery with cell grids of particular calcium, tin, silver, lead alloy so as to be fabricated by direct casting | |
| CN1043042A (en) | The thermal cell group of no crest voltage | |
| CN110085935A (en) | A kind of method of power lithium-ion battery conformity classification | |
| DE3469979D1 (en) | Improved electrolyte for zinc-bromine batteries | |
| CN107579255A (en) | A kind of positive electrode grid of lead storage battery alloy and preparation method thereof | |
| US4304828A (en) | Zinc electrode | |
| CN101202356A (en) | Long life high capacity bipolar-type pole plate lead acid battery for electric automobile | |
| CN212062582U (en) | Pole piece, battery core and battery | |
| CN207009597U (en) | A kind of winter improves the device of lead-acid accumulator charge-discharge performance | |
| Menetrier et al. | New secondary batteries for room temperature applications using a vitreous electrolyte | |
| Manders et al. | Lead/acid battery design and operation | |
| Nann | Improving the performance of deep-cycling, valve-regulated, lead/acid batteries | |
| ES8303832A1 (en) | Lead-acid battery | |
| SU803779A1 (en) | Lead-acid storage battery | |
| JPS5920757Y2 (en) | silver oxide battery | |
| CN206432347U (en) | A kind of enhanced battery of electric vehicle of silica | |
| Ambalavanan et al. | Effect of various grid alloys on the performance of flooded lead acid cells | |
| SU609149A1 (en) | Method of manufacturing alkaline nickel-cadmium storage battery | |
| JPS6235453A (en) | Alkaline-zinc storage battery | |
| CN1110869C (en) | High capacity storage batterya nd its charging method | |
| GB189907479A (en) | Improvements in Secondary Batteries. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |