CN107845820A - Thermal battery electrolyte piece reforming apparatus and thermal battery electrolyte piece method of modifying - Google Patents

Thermal battery electrolyte piece reforming apparatus and thermal battery electrolyte piece method of modifying Download PDF

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Publication number
CN107845820A
CN107845820A CN201711082468.XA CN201711082468A CN107845820A CN 107845820 A CN107845820 A CN 107845820A CN 201711082468 A CN201711082468 A CN 201711082468A CN 107845820 A CN107845820 A CN 107845820A
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CN
China
Prior art keywords
batch mixing
mixing unit
battery electrolyte
thermal battery
electrolyte piece
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.)
Granted
Application number
CN201711082468.XA
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Chinese (zh)
Other versions
CN107845820B (en
Inventor
刘敬松
李惠琴
刘效疆
杨兆堂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest University of Science and Technology
Institute of Electronic Engineering of CAEP
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Southwest University of Science and Technology
Institute of Electronic Engineering of CAEP
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Priority to CN201711082468.XA priority Critical patent/CN107845820B/en
Publication of CN107845820A publication Critical patent/CN107845820A/en
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Publication of CN107845820B publication Critical patent/CN107845820B/en
Expired - Fee Related legal-status Critical Current
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00Primary cells; Manufacture thereof
    • H01M6/30Deferred-action cells
    • H01M6/36Deferred-action cells containing electrolyte and made operational by physical means, e.g. thermal cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00Primary cells; Manufacture thereof
    • H01M6/14Cells with non-aqueous electrolyte
    • H01M6/18Cells with non-aqueous electrolyte with solid electrolyte
    • H01M6/185Cells with non-aqueous electrolyte with solid electrolyte with oxides, hydroxides or oxysalts as solid electrolytes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00Primary cells; Manufacture thereof
    • H01M6/22Immobilising of 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)
  • Fuel Cell (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Thermal battery electrolyte piece reforming apparatus and thermal battery electrolyte piece method of modifying, are related to thermal cell material technology.The thermal battery electrolyte piece reforming apparatus of the present invention includes:The first powder feeder being connected with the first batch mixing unit;The plasma generator being connected with the first batch mixing unit;The argon gas source being connected with the first batch mixing unit;The second powder feeder being connected with the second batch mixing unit;The source nitrogen being connected with the second batch mixing unit;The outlet of first batch mixing unit and the second batch mixing unit is all connected to the 3rd batch mixing unit;The outlet of 3rd batch mixing unit is connected to collector by screen cloth.The invention has the advantages that being all obviously improved using thermal cell discharge voltage made of the thermal cell dielectric substance of the technology of the present invention and capacity, the performance of thermal cell is improved.

Description

Thermal battery electrolyte piece reforming apparatus and thermal battery electrolyte piece method of modifying
Technical field
The present invention relates to thermal cell material technology.
Background technology
Thermal cell (i.e. heat activated battery) is a kind of molten salt electrolyte reserve cell, has and activates fast, higher than energy, use The advantages that temperature range is wide, length storage, has broad prospect of application in modern flight equipment and production of hydrocarbons.Under normal temperature, thermoelectricity Pond electrolyte is in solid isolation.During work, poly- rise of internal temperature makes electrolyte melt and have high conductivity, so as to discharge electricity Can, therefore, electrolyte sheet is the important process part of thermal cell, and its performance determines the performance of thermal cell.In actual thermal cell In, also need to add flow inhibitor in electrolyte sheet as carrier, to suppress the flowing of the fused salt of melting, common flowing suppression Preparation has magnesium oxide powder, nonporous fiber, porous fibre.But magnesium oxide powder, nonporous fiber, porous fibre are insulators, There is no electro-chemical activity, have impact on the electro-chemical activity of electrolyte sheet yet, thus result in magnesia solid content it is too high when battery Hydraulic performance decline.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of thermal battery electrolyte piece that can improve thermal cell performance Reforming apparatus and thermal battery electrolyte piece method of modifying.
It is thermal battery electrolyte piece reforming apparatus that the present invention, which solves the technical scheme that the technical problem uses, its feature It is, including:
The first powder feeder being connected with the first batch mixing unit;
The plasma generator being connected with the first batch mixing unit;
The argon gas source being connected with the first batch mixing unit;
The second powder feeder being connected with the second batch mixing unit;
The source nitrogen being connected with the second batch mixing unit;
The outlet of first batch mixing unit and the second batch mixing unit is all connected to the 3rd batch mixing unit;
The outlet of 3rd batch mixing unit is connected to collector by screen cloth.
Further, the argon gas source includes high-purity argon gas cylinder and pressure-reducing valve, and source nitrogen includes High Purity Nitrogen gas cylinder and decompression Valve.
The first batch mixing unit, the second batch mixing unit and the 3rd batch mixing unit are all batch mixing nozzle.
The thermal battery electrolyte piece method of modifying of the present invention comprises the steps:
1) under ar gas environment, mixed oxidization magnesium material and plasma, burn plasma and magnesia material Erosion is acted on, and then by magnesia material, -- plasma mixture and nitrogen -- fused salt mixture of powders is mixed to get finally again Mixture, the magnesia material are magnesium oxide powder, magnesia nonporous fiber or magnesia porous fibre;
2) screen filtration final mixture, modified thermal cell dielectric piece is obtained.
In the step 1), plasma generator operating voltage 50-120 volts, plasma current is pacified for 300-600;Argon gas Flow with nitrogen is 300-400 ls/h;Magnesia material feed rate is 20-80 gram/minutes, by the quality of charging Than magnesia material/fused salt powder is 1/3 to 3/5;The specification of screen cloth is 40-80 mesh.
The invention has the advantages that using thermoelectricity tank discharge electricity made of the thermal cell dielectric substance of the technology of the present invention Pressure and capacity are all obviously improved, and improve the performance of thermal cell.
Brief description of the drawings
Fig. 1 is the thermal battery electrolyte piece reforming apparatus structural representation of the present invention.
Fig. 2 is using the modified thermal cell performance comparison curve map of the technology of the present invention.
Embodiment
Thermal battery electrolyte piece reforming apparatus, including:
The first powder feeder being connected with the first batch mixing unit;
The plasma generator being connected with the first batch mixing unit;
The argon gas source being connected with the first batch mixing unit;
The second powder feeder being connected with the second batch mixing unit;
The source nitrogen being connected with the second batch mixing unit;
The outlet of first batch mixing unit and the second batch mixing unit is all connected to the 3rd batch mixing unit;
The outlet of 3rd batch mixing unit is connected to collector by screen cloth.
Referring specifically to Fig. 1.
First powder feeder 1 is the feeder of magnesia material, and the magnesia material is magnesium oxide powder or oxidation Magnesium nonporous fiber or magnesia porous fibre.
Second powder feeder 2 is fused salt powder feeder.
First batch mixing unit is batch mixing nozzle A, and effect is that plasma, powder, high-purity argon gas enter spray in the direction of arrows Mouth internal cavity, with powder ablation effect occurs for plasma in cavity, and argon gas stream is pressed after being mixed with powder along diversion outlet Sprayed according to the direction of arrow;
Second batch mixing unit is batch mixing nozzle B, and effect is that powder, high pure nitrogen enter nozzle interior chamber in the direction of arrows Body, nitrogen stream spray after being mixed with powder along diversion outlet according to the direction of arrow;
3rd batch mixing unit is batch mixing nozzle C, and effect is the powder air-flow from batch mixing nozzle A and batch mixing nozzle B by arrow Head direction enters internal cavity, is sprayed after mixing along diversion outlet according to the direction of arrow, and the collector of lower section is entered through screen cloth.
Plasma generator is pacified using argon gas source, operating voltage 50-120 volts, plasma current for 300-600;Subtract It is 300-400 ls/h that pressure valve, which controls the flow of high-purity argon gas and high pure nitrogen,;First powder feeder rate of feed is The charge-mass ratio of 20-80 gram/minutes, the first powder feeder and the second powder feeder is 1/3 to 3/5;The specification of screen cloth For 40-80 mesh, screen cloth can vibrate.
Embodiment 1:
1st, plasma generator is opened, operating voltage is arranged to 50 volts, and plasma current is arranged to 300 peaces;
2nd, batch mixing nozzle switch C is opened;
3rd, the purity of opening high-purity argon gas cylinder pressure-reducing valve and High Purity Nitrogen gas cylinder pressure-reducing valve, high-purity argon gas and high pure nitrogen is big In 99%, flow is disposed as 300 ls/h;
4th, collector switch is opened, screen cloth is 60 mesh, and vibration frequency is 960 beats/min;
5th, open powder feeder 1 and switch A, open powder feeder 2 and switch B, the rate of feed of powder feeder 1 is set For 20 gram/minutes, the rate of feed of powder feeder 2 is arranged to 60 gram/minutes.
Embodiment 2:
1st, plasma generator is opened, operating voltage is arranged to 50 volts, and plasma current is arranged to 300 peaces;
2nd, batch mixing nozzle switch C is opened;
3rd, the purity of opening high-purity argon gas cylinder pressure-reducing valve and High Purity Nitrogen gas cylinder pressure-reducing valve, high-purity argon gas and high pure nitrogen is big In 99%, flow is disposed as 300 ls/h;
4th, collector switch is opened, screen cloth is 60 mesh, and vibration frequency is 960 beats/min;
5th, open powder feeder 1 and switch A, open powder feeder 2 and switch B, the rate of feed of powder feeder 1 is set For 30 gram/minutes, the rate of feed of powder feeder 2 is arranged to 90 gram/minutes.
Modification theory:
After plasma is to the mgo surface ablation of insulation, the surface electrochemistry activity of insulating oxide magnesium is enhanced, finally Obtained thermal cell discharge performance gets a promotion.The form of magnesia includes powder, nonporous fiber, porous fibre.
Modified result:
As shown in Fig. 2 a for be modified without plasma spraying prepared by thermal cell discharge curve, b, c be by etc. from Prepared by son spraying is modified thermal cell discharge curve.B, c differences are rate of feed difference, and b is 30 gram/minutes, c 20 Gram/minute, other conditions are identical.Magnesia is nonporous fiber, the magnesia of other forms includes powder and porous fibre , its experimental result is similar.Rate of feed is faster, and the action time of plasma and magnesia is shorter.As a result show, through plasma Spray modified, discharge voltage and capacity are substantially improved compared to unmodified.Plasma action time is longer, and modification carries Ascending effect is more obvious.

Claims (5)

1. thermal battery electrolyte piece reforming apparatus, it is characterised in that including:
The first powder feeder being connected with the first batch mixing unit;
The plasma generator being connected with the first batch mixing unit;
The argon gas source being connected with the first batch mixing unit;
The second powder feeder being connected with the second batch mixing unit;
The source nitrogen being connected with the second batch mixing unit;
The outlet of first batch mixing unit and the second batch mixing unit is all connected to the 3rd batch mixing unit;
The outlet of 3rd batch mixing unit is connected to collector by screen cloth.
2. thermal battery electrolyte piece reforming apparatus as claimed in claim 1, it is characterised in that the argon gas source includes high-purity argon Gas cylinder and pressure-reducing valve, source nitrogen include High Purity Nitrogen gas cylinder and pressure-reducing valve.
3. thermal battery electrolyte piece reforming apparatus as claimed in claim 1, it is characterised in that the first batch mixing unit, Two batch mixing units and the 3rd batch mixing unit are all batch mixing nozzle.
4. thermal battery electrolyte piece method of modifying, it is characterised in that comprise the steps:
1) under ar gas environment, mixed oxidization magnesium material and plasma, make plasma and magnesia material that ablation occur and make With then by magnesia material -- plasma mixture and nitrogen -- fused salt mixture of powders is mixed to get final mix again Thing, the magnesia material are magnesium oxide powder, magnesia nonporous fiber or magnesia porous fibre;
2) screen filtration final mixture, modified thermal cell dielectric piece is obtained.
5. thermal battery electrolyte piece method of modifying as claimed in claim 4, it is characterised in that in the step 1), plasma Generator operating voltage 50-120 is lied prostrate, and plasma current is pacified for 300-600;The flow of argon gas and nitrogen is 300-400 liters/small When;Magnesia material feed rate is 20-80 gram/minutes, by the mass ratio of charging, magnesia material/fused salt powder be 1/3 to 3/5;The specification of screen cloth is 40-80 mesh.
CN201711082468.XA 2017-11-07 2017-11-07 Thermal battery electrolyte piece reforming apparatus and thermal battery electrolyte piece method of modifying Expired - Fee Related CN107845820B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112531283A (en) * 2020-12-09 2021-03-19 贵州梅岭电源有限公司 Automatic thermal battery diaphragm material preparation device and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110380072B (en) * 2019-07-25 2021-11-23 中国工程物理研究院电子工程研究所 Composite flow inhibitor for lithium-based thermal battery electrolyte, electrolyte diaphragm material, lithium-based thermal battery and preparation method of composite flow inhibitor

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103022526A (en) * 2011-09-22 2013-04-03 伊格皮切尔科技有限责任公司 Electrolyte materials, thermal battery components, and thermal batteries for intermediate temperature applications
CN103204524A (en) * 2013-04-08 2013-07-17 西南科技大学 Preparation method of magnesium oxide porous fiber
CN105489910A (en) * 2015-07-31 2016-04-13 西南科技大学 Preparation method of electrolyte flake for thermal battery
CN105703002A (en) * 2014-11-27 2016-06-22 中国电子科技集团公司第十八研究所 Electrolyte material for thermal battery and preparation method for electrolyte material
CN105789653A (en) * 2016-04-13 2016-07-20 武汉理工大学 Preparation method of thermal battery electrolyte containing hollow magnesia powder
CN106082286A (en) * 2016-06-06 2016-11-09 中南大学 A kind of thermal battery electrolyte inhibitor MgO and preparation method thereof
CN106450366A (en) * 2016-10-19 2017-02-22 上海空间电源研究所 Ultra-thin unit cell for thermal battery and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103022526A (en) * 2011-09-22 2013-04-03 伊格皮切尔科技有限责任公司 Electrolyte materials, thermal battery components, and thermal batteries for intermediate temperature applications
CN103204524A (en) * 2013-04-08 2013-07-17 西南科技大学 Preparation method of magnesium oxide porous fiber
CN105703002A (en) * 2014-11-27 2016-06-22 中国电子科技集团公司第十八研究所 Electrolyte material for thermal battery and preparation method for electrolyte material
CN105489910A (en) * 2015-07-31 2016-04-13 西南科技大学 Preparation method of electrolyte flake for thermal battery
CN105789653A (en) * 2016-04-13 2016-07-20 武汉理工大学 Preparation method of thermal battery electrolyte containing hollow magnesia powder
CN106082286A (en) * 2016-06-06 2016-11-09 中南大学 A kind of thermal battery electrolyte inhibitor MgO and preparation method thereof
CN106450366A (en) * 2016-10-19 2017-02-22 上海空间电源研究所 Ultra-thin unit cell for thermal battery and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112531283A (en) * 2020-12-09 2021-03-19 贵州梅岭电源有限公司 Automatic thermal battery diaphragm material preparation device and method
CN112531283B (en) * 2020-12-09 2022-05-24 贵州梅岭电源有限公司 Automatic thermal battery diaphragm material preparation device and method

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