CN108232222A - A kind of anti high overload, resistance to high-spin, high power capacity single battery - Google Patents
A kind of anti high overload, resistance to high-spin, high power capacity single battery Download PDFInfo
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- CN108232222A CN108232222A CN201810024781.6A CN201810024781A CN108232222A CN 108232222 A CN108232222 A CN 108232222A CN 201810024781 A CN201810024781 A CN 201810024781A CN 108232222 A CN108232222 A CN 108232222A
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- powder
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- insulating powder
- mass ratio
- single battery
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- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/581—Chalcogenides or intercalation compounds thereof
- H01M4/5815—Sulfides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
It is the present invention provides a kind of anti high overload, resistance to high-spin, high power capacity single battery, nickel square hole net, graphite flake, positive powder, insulating powder, negative plate and flow collection sheet is tightly stacked successively；Insulating powder and negative plate outer ring are surrounded and are compacted by block ring；Block ring is by magnesia and asbestos according to 2：1 mass ratio is mixed with beating backlash and ring-type is made；Insulating powder is that mass ratio is 1:1~1:1.5 LiCl LiBr LiF ternary eutectics objects and magnesia mixture is pressed to form the separation layer that thickness is 0.4~0.6mm；Positive powder is that mass ratio is 1:1 CoS2With FeS2Mixture also adds the insulating powder of positive powder quality 15~18% and 2~5% lithia in positive powder.The present invention has that anti-harsh environment ability is strong, voltage output is stable, the technical characterstic of high-energy-density, meets currently overload-resistant to thermal cell, anti-spin and the demand that can work long hours.
Description
Technical field
The invention belongs to priming system and weapon system power technique fields, are related to a kind of priming system thermal cell.
Background technology
Thermal cell need to be amenable to the overload of 8000~13000g at present, when being resistant to the rotation of 40~100rps, and needing long
Between work, this is very high to the requirement in terms of thermal cell mechanical performance and capacity.
Previous thermal cell main three kinds of powders for being designed as compositing monomer battery in terms of anti high overload, anti-high rotation are equal
Add block ring, but there are following disadvantages for this structure：
1. internal temperature is heated inside thermal cell moment more than 500 DEG C when thermal cell works, part positive active material by
Heat is decomposed, and positive electrode active material utilization is caused to reduce, and so as to restrict thermoelectricity tankage, the thermal cell working time will contract
It is short.
2. eutectic has extreme influence with flow inhibitor proportion to internal resistance in the thermal cell course of work in insulating powder,
Thermal cell working time and functional reliability are influenced, when flow inhibitor ratio is smaller in insulating powder, thermal cell is interior when working
Hinder it is relatively small, but at high temperature easily flowing, particularly by high overload and high-spin effect under, electrolyte is easily from block ring
It overflows, thermal cell galvanic pile easily occurs short circuit, causes voltage unstable or even have security risk.
3. single battery mainly include cathode, insulating powder, three layers of positive powder, when pile assembles flow collection sheet, single battery,
Heating plate is layered according to certain sequence and assembles, and flow collection sheet is positioned at iron heating plate and cathode between, due to flow collection sheet thinner thickness,
There is 0.05mm, naked eyes can only can not be taken to detect by manually checking after being packed into pile, there is the possibility that assembling malfunctions before assembling.
Invention content
For overcome the deficiencies in the prior art, the present invention provides the thermoelectricity of a kind of resistance to high overload, anti-high-spin, high-energy-density
Pond single battery, has that anti-harsh environment ability is strong, voltage output is stable, the technical characterstic of high-energy-density, and it is current right to meet
Thermal cell is overload-resistant, anti-spin and the demand that can be worked long hours.
The technical solution adopted by the present invention to solve the technical problems is：A kind of anti high overload, resistance to high-spin, high power capacity list
Body battery, including block ring, nickel square hole net, graphite flake, flow collection sheet, negative plate, insulating powder and positive powder.
The nickel square hole net, graphite flake, positive powder, insulating powder, negative plate and flow collection sheet are tightly stacked successively；Described
Insulating powder and negative plate outer ring are surrounded and are compacted by block ring；The block ring is by magnesia and asbestos according to 2：1 quality
Ring-type is made than being mixed with beating backlash；The insulating powder is that mass ratio is 1:1~1:1.5 LiCl-LiBr-LiF ternarys are total to
Fusant and magnesia mixture are pressed to form the separation layer that thickness is 0.4~0.6mm；The positive powder is that mass ratio is 1:1
CoS2With FeS2Mixture also adds the insulating powder of positive powder quality 15~18% and 2~5% lithia in positive powder.
The beneficial effects of the invention are as follows：
(1) single battery negative plate and separation layer outer layer have block ring, and are compacted through hydraulic press, conduct in block ring
The light magnesium oxide of flow inhibitor is suppressed, and change is fine and close, and mesh reduces, and single battery can effectively be inhibited to be born in discharge process
Pole and insulating powder are flowed to pile outside.
(2) under the premise of cell capacity is ensured, the appropriate mass ratio for increasing activated magnesia in insulating powder, and
Ensureing separation layer thickness during design, when thermal cell works, insulating powder is molten condition, when by high overload and high-spin, oxygen
Change the flowing that magnesium inhibits eutectic, separation layer is made not generate weak link, will not cause to occur between single battery positive and negative anodes short
Road.
(3) when thermal cell works, internal temperature is up to 500 DEG C or more, due to FeS2Thermal instability, decomposite list
Matter sulphur, aggravation active material FeS2Consumption, CoS2Resistivity ratio FeS2Heat decomposition temperature is high, 650 DEG C reachable, high power discharge
Ability is stronger, CoS2-FeS2Anode composite overcomes FeS2(conductivity is low) and CoS2(insufficient formability) individually does disadvantage during anode
End.Inside addition insulating powder enhances the electric conductivity of positive powder, and the ozone magnesia inside insulating powder also has the work for inhibiting to flow
With addition small amounts lithium can eliminate the due to voltage spikes at thermoelectricity tank discharge initial stage, improve thermal cell voltage accuracy.
(4) anode paving is even on block ring and electrolyte, and the amount of more conventional single battery positive active material increases
More than 30%, the application of graphite flake increases positive conductive, reduces thermal shock of the heating plate to positive electrode, improves just
The utilization rate of pole active material, increases cell capacity.Nickel square hole net is conducive to improve work as single battery " skeleton "
Make process monomer battery structure intensity, ensure single battery by reliable operation when relatively strong centrifugation and impact acceleration.
(5) when single battery manufactures, by flow collection sheet and single battery " integrated ", multi-element when avoiding pile assembling
The loading error of assembling checks the labor intensity of quantity before the class of alleviating, is conducive to thermal cell functional reliability.
Description of the drawings
Fig. 1 is the structure diagram of single battery of the present invention；
Fig. 2 is nickel square hole net structure diagram；
Fig. 3 is block ring structure diagram；
Fig. 4 is graphite flake structure diagram；
Fig. 5 is the thermal cell of single battery composition of the present invention in 707mA/cm2Discharge curve；
In figure, 1- nickel square hole nets；2- block rings；3- graphite flakes；4- negative plates；5- insulating powders；6- positive powders；7- affluxs
Piece.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the present invention includes but are not limited to following implementations
Example.
Single cell of thermo battery provided by the invention is composed of 7 kinds of materials and element, including block ring, nickel square hole
Net, graphite flake, flow collection sheet, negative plate, insulating powder and positive powder.Its structure solve thermal cell be resistant to before activation high overload and
The technical barrier that stable operating voltage can simultaneously work long hours in the environment of tolerance high-spin after activation.
Single battery band choked flow ring structure, block ring are mainly made of light magnesium oxide and thermal cell with asbestos paper, and two
Person is according to 2：1 mass ratio mixing, mashing, eventually by papermaking punching circlewise.
Compound of the insulating powder for LiCl-LiBr-LiF ternary eutectics object and flow inhibitor activated magnesia, it is best
Mass ratio is 1:1~1:1.5, insulating powder is pressurized into separation layer, and separation layer thickness is 0.4~0.6mm.
Positive powder is CoS2-FeS2Compound, CoS2With FeS2Mass ratio be 1:1, positive powder inside addition 15%~
18% insulating powder and 2%~5% lithia.
Positive powder paves on electrolyte block ring and the insulating powder flattened when paved, stone is placed above positive powder
Ink material topmost places nickel square hole net, finally covers pressing mold compression moulding.
When single battery manufactures, a piece of flow collection sheet is placed on cathode face, and cover pressing mold pressurization to make flow collection sheet and monomer
Battery is integrally formed.
As shown in Figure 1, the single battery design in the embodiment of the present invention uses LiB/LiCl-LiBr-LiF/CoS2-FeS2
Electrochemical system, heating iron powder content in entire single battery is about 46%, cathode LiB and CoS2-FeS2Anode composite weight
Than being 1:4, positive pole-face is without block ring, and for single battery negative plate through lithium boron alloy band punch forming, insulating powder is Relative electro-conductivity
The full lithium insulating powder of the high ternary of rate (wherein active oxidation content of magnesium is 55%), negative plate are nested by being layered compacting with insulating powder
In block ring.Choked flow ring size is Φ 22mm × Φ 19mm, and afflux chip size is Φ 22mm, and cathode chip size is Φ 19mm,
Graphite flake and nickel square hole net size are Φ 21.8mm.
Single battery in embodiment is connected, produces four thermal cells, appearance and size is Φ 28mm × 33mm；According to
Following condition is discharged：
Output voltage：10V~15V, operating current 2A, use temperature range：- 40 DEG C~+55 DEG C,
Discharging condition 1：It discharges under centrifugal condition, centrifugal rotational speed 100rps.
Discharging condition 2：Overload impact is discharged, and 20000g hammerings overload is subjected to 2 times in 5s, 40s respectively in discharge process.It puts
Electricity the results are shown in Table 1.
The electric discharge result of table 1
Discharge process monitoring thermal cell voltage change, thermal cell discharging voltage balance in centrifuging and hammering discharge process,
Do not occur noise phenomena.Work terminates, and solution cuts single battery of the present invention, and electrolyte overflow phenomena is had no outside block ring.
Claims (1)
1. a kind of anti high overload, resistance to high-spin, high power capacity single battery, including block ring, nickel square hole net, graphite flake, flow collection sheet,
Negative plate, insulating powder and positive powder, it is characterised in that：The nickel square hole net, graphite flake, positive powder, insulating powder, negative plate and
Flow collection sheet is tightly stacked successively；The insulating powder and negative plate outer ring is surrounded and is compacted by block ring；The block ring by
Magnesia and asbestos are according to 2：1 mass ratio is mixed with beating backlash and ring-type is made；The insulating powder is that mass ratio is 1:1~1:
1.5 LiCl-LiBr-LiF ternary eutectics object and magnesia mixture is pressed to form the separation layer that thickness is 0.4~0.6mm；
The positive powder is that mass ratio is 1:1 CoS2With FeS2Mixture also adds positive powder quality 15~18% in positive powder
Insulating powder and 2~5% lithia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024781.6A CN108232222A (en) | 2018-01-11 | 2018-01-11 | A kind of anti high overload, resistance to high-spin, high power capacity single battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024781.6A CN108232222A (en) | 2018-01-11 | 2018-01-11 | A kind of anti high overload, resistance to high-spin, high power capacity single battery |
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| Publication Number | Publication Date |
|---|---|
| CN108232222A true CN108232222A (en) | 2018-06-29 |
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| CN201810024781.6A Pending CN108232222A (en) | 2018-01-11 | 2018-01-11 | A kind of anti high overload, resistance to high-spin, high power capacity single battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135684A (en) * | 2018-09-21 | 2019-01-04 | 贵州梅岭电源有限公司 | A kind of thermal cell composite phase-change material and preparation method thereof |
| CN109301276A (en) * | 2018-09-13 | 2019-02-01 | 沈阳君威新能科技有限公司 | One kind being based on the compound Fe of embedded flow collection sheetxNi1-xS2The single cell of thermo battery of anode |
| 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 |
| CN109761589A (en) * | 2019-03-15 | 2019-05-17 | 沈阳君威新能科技有限公司 | A kind of ceramics thermal battery inertia block ring and preparation method thereof |
| CN109802080A (en) * | 2019-01-14 | 2019-05-24 | 贵州梅岭电源有限公司 | A kind of high conductance composite diaphragm material of thermal cell |
| 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 |
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| CN102856565A (en) * | 2011-06-30 | 2013-01-02 | 上海空间电源研究所 | Cell unit for thermal cell with high specific energy |
| CN105140485A (en) * | 2015-08-26 | 2015-12-09 | 上海空间电源研究所 | Composite cathode material for thermal battery and preparation method of composite cathode material |
| 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 |
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| JPS5576573A (en) * | 1978-12-05 | 1980-06-09 | Seiko Instr & Electronics Ltd | Solid electrolyte cell |
| CN102856565A (en) * | 2011-06-30 | 2013-01-02 | 上海空间电源研究所 | Cell unit for thermal cell with high specific energy |
| CN105140485A (en) * | 2015-08-26 | 2015-12-09 | 上海空间电源研究所 | Composite cathode material for thermal battery and preparation method of composite cathode material |
| 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 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109301276A (en) * | 2018-09-13 | 2019-02-01 | 沈阳君威新能科技有限公司 | One kind being based on the compound Fe of embedded flow collection sheetxNi1-xS2The single cell of thermo battery of anode |
| CN109135684A (en) * | 2018-09-21 | 2019-01-04 | 贵州梅岭电源有限公司 | A kind of thermal cell composite phase-change material and preparation method thereof |
| CN109135684B (en) * | 2018-09-21 | 2020-10-27 | 贵州梅岭电源有限公司 | Composite phase change material for thermal battery and preparation method thereof |
| 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 |
| CN109802080A (en) * | 2019-01-14 | 2019-05-24 | 贵州梅岭电源有限公司 | A kind of high conductance composite diaphragm material of thermal cell |
| CN109802080B (en) * | 2019-01-14 | 2021-08-17 | 贵州梅岭电源有限公司 | High-conductivity composite diaphragm material for thermal battery |
| CN109761589A (en) * | 2019-03-15 | 2019-05-17 | 沈阳君威新能科技有限公司 | A kind of ceramics thermal battery inertia block ring and preparation method thereof |
| 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 |
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Application publication date: 20180629 |