CN201877521U - Automatic activation type lithium-sulphur battery pack - Google Patents

Automatic activation type lithium-sulphur battery pack Download PDF

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Publication number
CN201877521U
CN201877521U CN201020633824XU CN201020633824U CN201877521U CN 201877521 U CN201877521 U CN 201877521U CN 201020633824X U CN201020633824X U CN 201020633824XU CN 201020633824 U CN201020633824 U CN 201020633824U CN 201877521 U CN201877521 U CN 201877521U
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CN
China
Prior art keywords
lithium
shell
liquid
sulfur cell
electrolyte
Prior art date
Application number
CN201020633824XU
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Chinese (zh)
Inventor
荣利霞
李彬
崔军朋
兰敬辉
曹娟娟
金红新
潘明健
Original Assignee
北京临近空间飞行器系统工程研究所
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Application filed by 北京临近空间飞行器系统工程研究所 filed Critical 北京临近空间飞行器系统工程研究所
Priority to CN201020633824XU priority Critical patent/CN201877521U/en
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Publication of CN201877521U publication Critical patent/CN201877521U/en

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model relates to an automatic activation type lithium-sulphur battery pack, comprising a shell, an electric connector positioned on the shell and a plurality of single lithium-sulphur battery bodies fixed at the lower part in the shell, and further comprising a liquid storage device fixed at the upper part in the shell, and a gas generator positioned in the shell and connected with the electric connector, wherein a gas outlet of the gas generator is connected with the liquid storage device in a sealing manner; the liquid storage device is internally provided with an inner bag containing electrolyte; the lower part of the inner bag is provided with a liquid outlet on which a sealing film is arranged in a sealing manner; the liquid outlet of the inner bag is connected with a liquid filling hole at the lower part of the liquid storage device in a sealing manner; the position at the lower part of the liquid storage device, which corresponds to the liquid filling hole, is provided with an electrolyte distributing groove; the electrolyte distributing groove is provided with liquid filling pipelines which are respectively connected into all the single lithium-sulphur battery bodies in the sealing manner; an exhaust hole is arranged at the upper part of each single lithium-sulphur battery body; and each single lithium-sulphur battery body is connected with the electric connector. In the automatic activation type lithium-sulphur battery pack, the influence of self charging on the storage period of batteries is overcome, so that the storage period can be prolonged to 5 -8 years.

Description

A kind of automatic activation type lithium-sulfur cell group

Technical field

The utility model relates to a kind of automatic activation type lithium-sulfur cell group, particularly relates to a kind of automatic activation type lithium-sulfur cell group that prolongs the shelf life.

Background technology

The lithium-sulfur cell specific energy is up to 2600Wh/kg, is that cost is low, environmental friendliness and safe secondary cell system.At present, during the lithium-sulfur cell product export, assemblies such as electrolyte and battery pole piece have been packaged in packaging bag or the shell, because its both positive and negative polarity causes self discharge by the electrolyte conducting, be full of general placement the in electric back and be no more than just charging again half a year, otherwise can't normally use.Therefore, existing lithium-sulfur cell product can't be used in some needs the battery long term storage, and instant equipment or the occasion of using.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of storage period of limit for length's automatic activation type lithium-sulfur cell group.

For solving the problems of the technologies described above, a kind of automatic activation type lithium-sulfur cell group of the utility model, comprise shell, be positioned at electric connector and several lithium-sulfur cell monomers that are fixed in bottom within the shell on the shell, the gas generator that is connected with electric connector within also comprising the liquid reservoir that is fixed in top within the described shell and being positioned at shell, the gas outlet and the liquid reservoir of gas generator are tightly connected, be provided with the inner bag that electrolyte is housed in the liquid reservoir, the inner bag bottom is provided with liquid outlet, sealing is provided with and seals film on the liquid outlet, the liquid injection hole of the liquid outlet of inner bag and liquid reservoir bottom is tightly connected, the position corresponding with liquid injection hole, liquid reservoir bottom is provided with electrolyte distribution, electrolyte distribution is provided with the fluid injection pipeline that is sealably coupled to each lithium-sulfur cell monomer inside respectively, all be provided with steam vent on each lithium-sulfur cell monomer, each lithium-sulfur cell monomer is connected with electric connector.

It is the charged reserve cell of dry state that the utility model adopts the indoor design of lithium-sulfur cell group, and the mechanism of the electrolyte and the electrolyte of annotating is automatically stored in increase, start the battery pack electrolyte of annotating automatically by external command during use, finish battery activatedly fast, overcome the influence of self discharge battery storage phase.By improvement of the present utility model, can be increased to the storage period of lithium-sulfur cell 5 years~8 years.

Description of drawings

Fig. 1 is the structural representation of a kind of automatic activation type lithium-sulfur cell group provided by the utility model.

Among the figure: 1 is shell, 2 liquid reservoirs, 3 inner bags, 4 gas generators, 5 electrolyte distribution, 6 fluid injection pipelines, 7 lithium-sulfur cell monomers, 8 steam vents, 9 electric connectors.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

The utility model comprises shell 1, electric connector 9, two lithium-sulfur cell monomers 7, gas generator 4, liquid reservoir 2.

The shell 1 preferred cuboid that adopts preferably adopts stainless steel, titanium alloy, carbon fiber bar, plastic or other material to make.In the electric connector 9 that shell 1 outer surface is installed, to two lithium-sulfur cell monomers, 7 inner input activation signals, series and parallel connects lithium-sulfur cell monomer 7 inside on the other hand, makes electric current output on the one hand.Decide as required the model and the fixed position of electric connector 9, preferably adopts the GJB599III series electric connector of Aviation Industry of China group company etc.

Two lithium-sulfur cell monomers 7 are fixed in bottom within the shell 1.Lithium-sulfur cell monomer 7 comprises, negative collector bar, positive collector bar, barrier film, negative electrode, positive electrode, insulating tape, external packing etc.Repacking makes after preferably buying from Samsung, also can take general method for designing to make, and can cut out with aluminium foil as the positive and negative collector bar of battery to obtain; Insulating cement has finished product can be for buying; Barrier film can use glass folder superabsorbent fibrous material to cut out and make; Negative pole can be cut out by the lithium paper tinsel and obtain; Positive electrode can adopt the sulphur powder to add suitable adhesive and make by being coated on the metallic frameworks such as aluminium net; Positive/negative plate to each lithium-sulfur cell monomer changes into processing in electrochemical pond, making the lithium-sulfur cell monomer is charging state.The square shell that is made by metal, polymethyl methacrylate or carbon fibre material is preferably adopted in the external packing of battery, and the top cover place of external packing reserves steam vent.The assembling of lithium-sulfur cell monomer 7 need be carried out at drying shed, adopts general battery packaging technology to get final product.

Gas generator 4 can be used for producing the gases at high pressure of extruding electrolyte, and it starts by the signal of telecommunication that electric connector 9 provides.

Liquid reservoir 3 is fixed in top within the shell 1.It comprises the liquid reservoir shell, is positioned at the inner bag within the liquid reservoir shell.The liquid reservoir shell upper is provided with a hole, and itself and gas generator 4 gas outlets are tightly connected.Liquid reservoir 2 outer casing underparts are provided with a liquid injection hole, are used to make electrolyte to flow out.Liquid reservoir 2 shells preferably adopt metal material, adopt metal material mainly to play protection and load effect.

The liquid reservoir 2 outer casing underparts position corresponding with liquid injection hole is installed with an electrolyte distribution 5.Electrolyte distribution 5 is provided with the fluid injection pipeline 6 that is connected respectively to each lithium-sulfur cell monomer inside.Electrolyte distribution 5 can customize from processing factory, preferably adopts materials such as plastics, polymethyl methacrylate.

Inner bag 3 is used for the organic electrolyte of long term storage lithium-sulfur cell, and electrolyte is the general electrolyte of lithium-sulfur cell.Inner bag 3 bottoms are provided with liquid outlet, and sealing is provided with and seals film on the liquid outlet.The volume of inner bag 3 can be full of liquid reservoir 2 inner spaces after preferably filling electrolyte.Inner bag 3 materials preferably adopt the aluminized plastic film of organic solvent-resistant corrosion, aluminizer thickness according to storage period length and electrolyte form and decide.Aluminized plastic film is satisfying under the liquid tension prerequisite pliable and toughly as far as possible, and the ability of its stretch-proof is much larger than sealing film.Seal film and be preferably circular aluminium foil, its area should be suitably greater than liquid outlet, and its thickness is relevant with the size of electrolyte capacity and liquid outlet, need guarantee under the effect of electrolyte gravity, seals film and can not squeezed broken.The liquid outlet place size of inner bag 3 is consistent with the liquid injection hole of liquid reservoir 2 outer casing underparts, and the liquid injection hole of the liquid outlet of inner bag 3 and liquid reservoir 2 is sealedly and fixedly connected by sealing ring.

The utility model is when storing, and electrolyte is loaded among the inner bag 3; When needs use, external control signal is sent to the gas generator 4 that is installed on inside battery through the electric connector 9 of battery case 1, gas generator 4 is sent a large amount of gases at high pressure by signal of telecommunication startup in liquid reservoir 2, gas extruding inner bag 3 makes electrolyte break through and seals film, through the liquid injection hole of the liquid outlet of inner bag 3, liquid reservoir, enter electrolyte distribution 5, enter each lithium-sulfur cell monomer 7 by fluid injection pipeline 6 subsequently.Electrolyte enters after the lithium-sulfur cell monomer, and the lithium-sulfur cell group promptly can realize externally power supply output.

Claims (4)

1. automatic activation type lithium-sulfur cell group, comprise shell, be positioned at electric connector and several lithium-sulfur cell monomers that are fixed in bottom within the shell on the shell, it is characterized in that: the gas generator that is connected with electric connector within also comprising the liquid reservoir that is fixed in top within the described shell and being positioned at described shell, the gas outlet and the liquid reservoir of gas generator are tightly connected, be provided with the inner bag that electrolyte is housed in the liquid reservoir, the inner bag bottom is provided with liquid outlet, sealing is provided with and seals film on the liquid outlet, the liquid injection hole of the liquid outlet of inner bag and liquid reservoir bottom is tightly connected, the position corresponding with liquid injection hole, liquid reservoir bottom is provided with electrolyte distribution, electrolyte distribution is provided with the fluid injection pipeline that is sealably coupled to each lithium-sulfur cell monomer inside respectively, all be provided with steam vent on each lithium-sulfur cell monomer, each lithium-sulfur cell monomer is connected with electric connector.
2. a kind of automatic activation type lithium-sulfur cell group according to claim 1 is characterized in that: after described inner bag is filled electrolyte, under the effect of electrolyte gravity, seal film and can not squeezed broken.
3. a kind of automatic activation type lithium-sulfur cell group according to claim 1, it is characterized in that: the ability of described inner bag stretch-proof is greater than described ability of sealing the film stretch-proof.
4. a kind of automatic activation type lithium-sulfur cell group according to claim 1, it is characterized in that: the shell of described liquid reservoir is that metal material is made.
CN201020633824XU 2010-11-29 2010-11-29 Automatic activation type lithium-sulphur battery pack CN201877521U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020633824XU CN201877521U (en) 2010-11-29 2010-11-29 Automatic activation type lithium-sulphur battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201020633824XU CN201877521U (en) 2010-11-29 2010-11-29 Automatic activation type lithium-sulphur battery pack

Publications (1)

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CN201877521U true CN201877521U (en) 2011-06-22

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102856591A (en) * 2012-10-08 2013-01-02 中国电子科技集团公司第十八研究所 Preparation method of high-capacity lithium-manganese battery
CN106099141A (en) * 2016-06-17 2016-11-09 中国电子科技集团公司第十八研究所 Cell electric discharge device, processing method and method of testing
CN106450141A (en) * 2016-09-29 2017-02-22 武汉船用电力推进装置研究所(中国船舶重工集团公司第七二研究所) Novel liquid injection system used for storage type battery
CN109473689A (en) * 2018-11-01 2019-03-15 贵州梅岭电源有限公司 A kind of double cylinder liquid reservoir structure zinc-silver reserve battery groups
CN110015139A (en) * 2017-11-20 2019-07-16 比亚迪股份有限公司 On-vehicle battery control system, method and vehicle
CN110993978A (en) * 2019-11-04 2020-04-10 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) Device and method for eliminating leakage current of activated battery branch

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102856591A (en) * 2012-10-08 2013-01-02 中国电子科技集团公司第十八研究所 Preparation method of high-capacity lithium-manganese battery
CN102856591B (en) * 2012-10-08 2016-01-20 中国电子科技集团公司第十八研究所 The preparation method of high-capacity lithium-manganese battery
CN106099141A (en) * 2016-06-17 2016-11-09 中国电子科技集团公司第十八研究所 Cell electric discharge device, processing method and method of testing
CN106099141B (en) * 2016-06-17 2019-03-15 中国电子科技集团公司第十八研究所 Single battery electric discharge device, processing method and test method
CN106450141A (en) * 2016-09-29 2017-02-22 武汉船用电力推进装置研究所(中国船舶重工集团公司第七二研究所) Novel liquid injection system used for storage type battery
CN106450141B (en) * 2016-09-29 2019-02-15 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) It is a kind of for storeing the liquid injection system of formula battery
CN110015139A (en) * 2017-11-20 2019-07-16 比亚迪股份有限公司 On-vehicle battery control system, method and vehicle
CN109473689A (en) * 2018-11-01 2019-03-15 贵州梅岭电源有限公司 A kind of double cylinder liquid reservoir structure zinc-silver reserve battery groups
CN110993978A (en) * 2019-11-04 2020-04-10 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) Device and method for eliminating leakage current of activated battery branch

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Granted publication date: 20110622