CN206849962U - A kind of high security self-heating polymer lithium ion secondary battery - Google Patents
A kind of high security self-heating polymer lithium ion secondary battery Download PDFInfo
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- CN206849962U CN206849962U CN201720219677.3U CN201720219677U CN206849962U CN 206849962 U CN206849962 U CN 206849962U CN 201720219677 U CN201720219677 U CN 201720219677U CN 206849962 U CN206849962 U CN 206849962U
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- battery
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
It the utility model is related to a kind of high security self-heating polymer lithium ion secondary battery, a strata acid imide microporous membrane, heat-conducting metal paillon foil, PTC heating diaphragms being stacked gradually outside the group of outermost layer battery core pole after being laminated by N group battery cores pole group and forming battery, shell is coated on the outside of battery；Battery core pole group includes positive plate, negative plate, Kynoar（PVDF) coated separator paper, combination are followed successively by positive plate, Kynoar from top to bottom（PVDF) coated separator paper, negative plate, Kynoar（PVDF) coated separator paper, when battery charges under low temperature environment, external circuit conducting, the PTC diaphragms that generate heat are heated to inside battery, and inside battery is heated to 15 DEG C or so by battery, are prevented that battery charges analysis lithium at low ambient temperatures, are extended the service life of battery.
Description
Technical field
The utility model is related to a kind of lithium rechargeable battery, more particularly to a kind of high security self-heating polymer lithium from
Sub- secondary cell.
Background technology
In recent years, lithium ion battery is because operating voltage is high, energy density is big, memory-less effect, has extended cycle life, without dirt
The advantages that dye, it is applied to more and more widely in consumption, power, energy storage and special cells, progressively instead of traditional fill
Battery turns into the major product of field of batteries.With the expansion in market, refrigerant latitudes are also more next to the demand of lithium ion battery
It is bigger, such as warm-proof shoes clothes, frigid zone communication apparatus power supply, frigid zone scientific investigation instrument power source, frigid zone be civilian, frigid zone first aid is speedily carried out rescue work standby electricity
There is very big demand in the market such as source and frigid zone electric motor car power supply.Under cold belt environment, it is desirable to which battery is at -40 DEG C~-55 DEG C
Normal work is remained to, but at low ambient temperatures, traditional lithium-ion battery has the defects of being difficult to go beyond.Chinese patent notification number is
CN2842759Y discloses a kind of Colloid Electrolytic Polymer Lithium Ion Battery, is made up of battery, electrolyte and shell, battery
Core includes positive plate, negative plate and barrier film, and positive plate, barrier film and negative plate continuously stack successively, piece number/negative plate of positive plate
Piece number be N pieces, electrolyte is gel state electrolyte, and this lithium ion battery has some defects, is mainly reflected in：
1) low temperature performance is poor, and conventional discharge temperature range is -20 DEG C~+55 DEG C, can not be discharged when less than -20 DEG C
Or discharge time is short；
2) low temperature discharge multiplying power is small, is generally only applicable to the continuous discharge of below the 0.2C electric currents of more than -20 DEG C of low temperature, nothing
Method meets required high power requirement during equipment low-temperature working；
3) low temperature charge nothing but or low temperature charging after analyse lithium, cause cycle life extreme difference after low temperature charging；
4) in more than 65 DEG C charge and discharge of high temperature, battery inflatable, cause battery failure or form safety problem；
5) internal resistance of cell is big, such as 10Ah battery 1KHz AC impedances are generally more than 3m Ω；Discharge-rate is small, generally suitable
Together in the continuous discharge of the following electric currents of normal temperature 3C, required power requirement during high-power equipment work can not be met；Battery is big
Under the conditions of electric current charge and discharge, temperature rise is higher, has a strong impact on the cycle life of battery；
6) full electric state acupuncture, extruding, heat are easily on fire in the case of abusing, smolder to form safety problem；
7) it is easily on fire, smolder to form safety problem when external circuit failure etc. causes the battery to overheat；
8) external heat is used, PACK is complicated, and firing rate is slow, and efficiency is low, and temperature distribution evenness is poor.
Utility model content
The purpose of this utility model is to solve the defects of present in prior art, there is provided a kind of high security self-heating
Polymer lithium ion secondary battery.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of high security self-heating polymer lithium ion secondary battery, in outermost layer electricity after being laminated by N group battery cores pole group
A strata acid imide microporous membrane, heat-conducting metal paillon foil, PTC heating diaphragms are stacked gradually outside the group of core pole and forms battery, electricity
Cladding shell on the outside of Chi Xin；
Battery core pole group includes positive plate, negative plate, Kynoar (PVDF) coated separator paper, and combination is from top to bottom
It is followed successively by positive plate, Kynoar (PVDF) coated separator paper, negative plate.
A kind of above-mentioned high security self-heating polymer lithium ion secondary battery, the Kynoar (PVDF) apply
The section of layer diaphragm paper is in toothed waveform, and positive plate and negative plate are located at Kynoar (PVDF) coated separator paper
Both sides.
A kind of above-mentioned high security self-heating polymer lithium ion secondary battery, the interior injection electrolyte of the shell, warp
Thermal polymerization makes electrolyte form colloidal electrolyte, and negative plate, positive plate are pasted on Kynoar (PVDF) coating in battery
Diaphragm paper both sides, battery form non-liquid polymer battery core.
A kind of above-mentioned high security self-heating polymer lithium ion secondary battery, the polyimides microporous membrane will be poly-
Vinylidene (PVDF) coated separator paper separates with heat-conducting metal paillon foil.
A kind of above-mentioned high security self-heating polymer lithium ion secondary battery, the polyimides microporous membrane thickness
For 0.01mm -0.3mm, porosity is 30% -65%, and aperture is 0.02um -0.2um.
A kind of above-mentioned high security self-heating polymer lithium ion secondary battery, the heat-conducting metal foil thickness are
0.03mm -0.2mm high thermal conductivity metal.
A kind of above-mentioned high security self-heating polymer lithium ion secondary battery, the heat-conducting metal paillon foil be copper, nickel,
Aluminium.
A kind of above-mentioned high security self-heating polymer lithium ion secondary battery, the negative electrode lug of the PTC heatings diaphragm
Weld together, form the negative electrode lug of battery, the tab welding of positive plate forms battery together after the stacking of N group battery cores pole group
The anode ear of core, PTC heating diaphragm positive pole soldering polar ear after formed PTC heating diaphragm anode ear.
The beneficial effects of the utility model are：Battery of the present utility model is by positive plate, negative plate, Kynoar
(PVDF) coated separator paper, colloidal electrolyte, polyimides microporous membrane, heat-conducting metal paillon foil, PTC heating diaphragms and shell
Composition.Gel polymer battery is laminated by negative plate, Kynoar (PVDF) coated separator paper, positive plate, after fluid injection
Thermal polymerization forms, and battery forms non-liquid polymer battery core, improves the security performance of battery；In N group battery cores pole, group is laminated
A strata acid imide microporous membrane, heat-conducting metal paillon foil, PTC heating diaphragms are stacked gradually outside outermost layer battery core pole afterwards；PTC
When heating diaphragm anode ear forms path or turned on anode ear with external loading, PTC heating diaphragm heatings, pass through heat conduction
Tinsel is by the inside battery that passes to of even heat, under low temperature environment, inside battery is heated into 15 DEG C or so, ensures lithium
The activity that ion battery environment below -40 DEG C uses, polyimides microporous membrane is by Kynoar (PVDF) coated separator
Paper separates with heat-conducting metal paillon foil, ensures the security of battery, when internal temperature of battery rises to 35 DEG C or so, PTC heatings
Diaphragm PTC effects show, and its caloric value reduces along speed, ensure that battery security and low temperature environment under the reliability that uses,
Simultaneously because generating heat diaphragm to inside battery heating using PTC, its efficiency of heating surface is high, and energy loss is small, securely and reliably.Low temperature ring
When battery charges under border, external circuit conducting, PTC heating diaphragms are heated to inside battery, and inside battery is heated to 15 by battery
DEG C or so, prevent battery charges at low ambient temperatures from analysing lithium, extend the service life of battery.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model；
Fig. 2 is the schematic diagram of the utility model battery；
Fig. 3 is the schematic diagram of the utility model battery core pole group；
Fig. 4 is the utility model self-heating principle schematic.
Embodiment
As shown in Figures 1 to 4, a kind of high security self-heating polymer lithium ion secondary battery, by N group battery cores pole group 1
A strata acid imide microporous membrane 2, heat-conducting metal paillon foil 3, PTC hairs are stacked gradually after stacking in the outside of outermost layer battery core pole group 1
Film 4 forms battery, and shell 5 is coated on the outside of battery；
Battery core pole group 1 includes positive plate 11, negative plate 12, Kynoar (PVDF) coated separator paper 13, combination
Positive plate 11, Kynoar (PVDF) coated separator paper 13, negative plate 12, Kynoar (PVDF) are followed successively by from top to bottom
Coated separator paper 13.
Wherein, the section of Kynoar (PVDF) coated separator paper 13 is in toothed waveform, positive plate 11 and negative pole
Piece 12 is located at the both sides of Kynoar (PVDF) coated separator paper 13.
Injection electrolyte in shell 5, electrolyte is set to form colloidal electrolyte through thermal polymerization, negative plate 12 in battery, just
Pole piece 11 is pasted on the both sides of Kynoar (PVDF) coated separator paper 13, and battery forms non-liquid polymer battery core.
Polyimides microporous membrane 2 separates Kynoar (PVDF) coated separator paper 13 with heat-conducting metal paillon foil 3,
The thickness of polyimides microporous membrane 2 is 0.01mm -0.3mm, and porosity is 30% -65%, and aperture is 0.02um -0.2um,
The thickness of heat-conducting metal paillon foil 3 is 0.03mm -0.2mm high thermal conductivity metal, and heat-conducting metal paillon foil 3 can be copper, nickel, aluminium etc..
The negative pole lug welding of PTC heating diaphragms together, forms the negative electrode lug 6 of battery, after the stacking of N group battery cores pole group just
The tab welding of pole piece 11 forms the anode ear 7 of battery together, and PTC is formed after the positive pole soldering polar ear of PTC heating diaphragms
The anode ear 8 of heating diaphragm.
Battery of the present utility model is by positive plate 11, negative plate 12, Kynoar (PVDF) coated separator paper 13, glue
Body electrolyte, polyimides microporous membrane 2, heat-conducting metal paillon foil 3, PTC heating diaphragms 4 and shell 5 form.Gel polymer
Battery is laminated by negative plate 11, Kynoar (PVDF) coated separator paper 13, positive plate 12, after fluid injection thermal polymerization form,
Battery forms non-liquid polymer battery core, improves the security performance of battery；In outermost layer electricity after the stacking of N group battery cores pole group
A strata acid imide microporous membrane 2, heat-conducting metal paillon foil 3, PTC heating diaphragms 4 are stacked gradually outside core pole；PTC heating diaphragms
When anode ear 8 turns on external loading formation path or with the anode ear 7 of battery, PTC heating diaphragms 4 generate heat, and pass through heat conduction gold
Belong to paillon foil 3 by the inside battery that passes to of even heat, under low temperature environment, inside battery is heated to 15 DEG C or so, ensures lithium
The activity that ion battery environment below -40 DEG C uses, polyimides microporous membrane 2 is by Kynoar (PVDF) coated separator
Paper 13 separates with heat-conducting metal paillon foil 3, ensures the security of battery, when internal temperature of battery rises to 35 DEG C or so, PTC hairs
The PTC effects of film 4 show, its caloric value along speed reduce, ensure that battery security and low temperature environment under use can
By property, simultaneously because generating heat diaphragm 4 to inside battery heating using PTC, its efficiency of heating surface is high, and energy loss is small, securely and reliably.
When battery charges under low temperature environment, external circuit conducting, PTC heating diaphragms 4 heat to inside battery, and battery adds inside battery
Heat prevents battery charges at low ambient temperatures from analysing lithium, extends the service life of battery to 15 DEG C or so.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of the spirit and scope of the utility model is not departed from
Kind changes and improvements, these changes and improvements are both fallen within claimed the scope of the utility model.The requires of the utility model
Protection domain defined by appended claims and its equivalent.
Claims (8)
- A kind of 1. high security self-heating polymer lithium ion secondary battery, it is characterised in that by N group battery cores pole group be laminated after A strata acid imide microporous membrane, heat-conducting metal paillon foil, PTC heating diaphragms are stacked gradually outside the group of outermost layer battery core pole and forms electricity Chi Xin, battery outside cladding shell；Battery core pole group includes positive plate, negative plate, Kynoar（PVDF) coated separator paper, combination is from top to bottom successively For positive plate, Kynoar（PVDF) coated separator paper, negative plate.
- A kind of 2. high security self-heating polymer lithium ion secondary battery according to claim 1, it is characterised in that institute State Kynoar（PVDF) section of coated separator paper is in toothed waveform, and positive plate and negative plate are located at Kynoar （PVDF) the both sides of coated separator paper.
- 3. a kind of high security self-heating polymer lithium ion secondary battery according to claim 1 or 2, its feature exist In injection electrolyte in, the shell, electrolyte is set to form colloidal electrolyte through thermal polymerization, negative plate, positive plate in battery It is pasted on Kynoar（PVDF) coated separator paper both sides, battery form non-liquid polymer battery core.
- A kind of 4. high security self-heating polymer lithium ion secondary battery according to claim 3, it is characterised in that institute Polyimides microporous membrane is stated by Kynoar（PVDF) coated separator paper separates with heat-conducting metal paillon foil.
- A kind of 5. high security self-heating polymer lithium ion secondary battery according to claim 4, it is characterised in that institute It is 0.01mm -0.3mm to state polyimides microporous membrane thickness, and porosity is 30% -65%, and aperture is 0.02um -0.2um.
- A kind of 6. high security self-heating polymer lithium ion secondary battery according to claim 4, it is characterised in that institute State the high thermal conductivity metal that heat-conducting metal foil thickness is 0.03mm -0.2mm.
- A kind of 7. high security self-heating polymer lithium ion secondary battery according to claim 6, it is characterised in that institute Heat-conducting metal paillon foil is stated as copper, nickel, aluminium.
- A kind of 8. high security self-heating polymer lithium ion secondary battery according to claim 1, it is characterised in that institute The negative pole lug welding for stating PTC heating diaphragms together, forms the negative electrode lug of battery, positive plate after the stacking of N group battery cores pole group Tab welding forms the anode ear of battery together, and PTC heating diaphragms are formed after the positive pole soldering polar ear of PTC heating diaphragms Anode ear.
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| CN201720219677.3U CN206849962U (en) | 2017-03-08 | 2017-03-08 | A kind of high security self-heating polymer lithium ion secondary battery |
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| CN201720219677.3U CN206849962U (en) | 2017-03-08 | 2017-03-08 | A kind of high security self-heating polymer lithium ion secondary battery |
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| CN206849962U true CN206849962U (en) | 2018-01-05 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832171A (en) * | 2018-06-19 | 2018-11-16 | 合肥国轩高科动力能源有限公司 | Self-heating polymer solid-state battery |
| CN109167099A (en) * | 2018-09-04 | 2019-01-08 | 北京卫蓝新能源科技有限公司 | A kind of battery of high safety and preparation method thereof |
| CN111653691A (en) * | 2019-03-04 | 2020-09-11 | 株式会社Lg化学 | Pouch for secondary battery and pouch type secondary battery |
| CN112366365A (en) * | 2020-01-16 | 2021-02-12 | 万向一二三股份公司 | Thermal composite laminated soft package lithium ion battery and preparation method thereof |
| CN113131088A (en) * | 2019-12-30 | 2021-07-16 | 荣盛盟固利新能源科技有限公司 | Lithium ion soft package battery |
| CN114421057A (en) * | 2021-12-22 | 2022-04-29 | 安徽安瓦新能源科技有限公司 | Battery module |
| CN114614076A (en) * | 2022-03-21 | 2022-06-10 | 上海兰钧新能源科技有限公司 | Secondary battery cell manufacturing method and secondary battery cell thereof |
-
2017
- 2017-03-08 CN CN201720219677.3U patent/CN206849962U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832171A (en) * | 2018-06-19 | 2018-11-16 | 合肥国轩高科动力能源有限公司 | Self-heating polymer solid-state battery |
| CN109167099A (en) * | 2018-09-04 | 2019-01-08 | 北京卫蓝新能源科技有限公司 | A kind of battery of high safety and preparation method thereof |
| CN109167099B (en) * | 2018-09-04 | 2020-08-21 | 北京卫蓝新能源科技有限公司 | High-safety battery and preparation method thereof |
| CN111653691A (en) * | 2019-03-04 | 2020-09-11 | 株式会社Lg化学 | Pouch for secondary battery and pouch type secondary battery |
| CN111653691B (en) * | 2019-03-04 | 2023-08-22 | 株式会社Lg新能源 | Pouch for secondary battery and pouch-type secondary battery |
| CN113131088A (en) * | 2019-12-30 | 2021-07-16 | 荣盛盟固利新能源科技有限公司 | Lithium ion soft package battery |
| CN112366365A (en) * | 2020-01-16 | 2021-02-12 | 万向一二三股份公司 | Thermal composite laminated soft package lithium ion battery and preparation method thereof |
| CN114421057A (en) * | 2021-12-22 | 2022-04-29 | 安徽安瓦新能源科技有限公司 | Battery module |
| CN114614076A (en) * | 2022-03-21 | 2022-06-10 | 上海兰钧新能源科技有限公司 | Secondary battery cell manufacturing method and secondary battery cell thereof |
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