CN103022557B - Based on the lithium ion battery gel polymer electrolyte and preparation method thereof of nonwoven fabrics - Google Patents

Based on the lithium ion battery gel polymer electrolyte and preparation method thereof of nonwoven fabrics Download PDF

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Publication number
CN103022557B
CN103022557B CN201210572448.1A CN201210572448A CN103022557B CN 103022557 B CN103022557 B CN 103022557B CN 201210572448 A CN201210572448 A CN 201210572448A CN 103022557 B CN103022557 B CN 103022557B
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nonwoven fabrics
lithium ion
ion battery
electrolyte
compound
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CN103022557A (en
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朱玉松
肖时英
杨亚琼
吴宇平
王丹
何丹农
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NATIONAL ENGINEERING RESEARCH CENTER FOR NANOTECHNOLOGY Co Ltd
Fudan University
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NATIONAL ENGINEERING RESEARCH CENTER FOR NANOTECHNOLOGY Co Ltd
Fudan University
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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
    • 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

Abstract

The invention belongs to technical field of lithium ion, be specifically related to lithium ion battery gel polymer electrolyte and preparation method thereof.Such polymer dielectric is made up of the compound obtained after nonwoven fabrics and other macromolecular material compound and liquid electrolyte.Do other macromolecular materials comprise polyethers, polyacrylonitrile?, polyacrylate?, the homopolymers of Kynoar (PVDF), copolymer or blend.Gel polymer electrolyte is obtained after adding liquid electrolyte in compound.This gel electrolyte not only has the feature that nonwoven fabrics mechanical strength is large, production cost is low, and conductivity is high, and electrochemical window is wide, good cycle, and security performance is high, can be used for the lithium ion battery of Large Copacity, high power, high-energy-density.

Description

Based on the lithium ion battery gel polymer electrolyte and preparation method thereof of nonwoven fabrics
Technical field
The invention belongs to technical field of lithium ion, be specifically related to lithium ion battery gel polymer electrolyte and preparation method thereof.
Background technology
Lithium ion battery is as a kind of mechanism of new electrochemical power sources, there is the advantages such as energy density is high, environmental friendliness, memory-less effect, from being widely used in the various portable electric appts such as notebook computer, digital camera, mobile phone since its commercialization, it is also one of desirable energy storage device of mixed power electric car (HEV), plug-in hybrid electric automobile (PHEV), pure electric automobile (EV) and small intelligent electrical network simultaneously.But, due to LiPF 6be that the extensive use of organic electrolyte (to moisture sensitivity, inflammable, easily to set off an explosion) makes the safety and reliability of high capacity lithium ion battery be under suspicion.In order to solve traditional lithium-ion battery safety issue, polymer Li-ion battery (Polymer lithium ion batteries) becomes study hotspot gradually.The positive and negative electrode material of such battery is identical with traditional lithium-ion battery, just have employed solid polymer to replace organic bath and barrier film.The polymer of most study mainly contains following a few class: polyethers (mainly PEO), polyacrylonitrile (PAN) class, polymethacrylates (PMMA) class and Kynoar (PVDF) class etc.Polymer Li-ion battery solves conventional lithium ion battery and leakage and the large problem of leakage current easily occurs, and fail safe significantly improves; In addition, polymeric material plasticity is strong, thus such battery have can the advantage such as thin type, arbitrary areaization and arbitrary shape, thus the specific capacity of battery can be significantly improved.Can be pure solid-state (solid polymer electrolyte for electrolytical polymer, solid polymer electrolytes, SPEs) also can be the gelinite (gel polymer electrolyte, gel polymer electrolytes, GPEs) adding plasticizer.But the conductivity of solid polymer electrolyte is on the low side (< 10 -4s cm -1), reach far away the level of practical application; Gel polymer electrolyte has the double properties of solid and liquid electrolyte, and conductivity is suitable with liquid organic electrolyte, and electrochemical window is wider, Heat stability is good, is subject to extensive concern.But gel polymer electrolyte bad mechanical strength, production cost is high, greatly limit its application in high-capacity high-power lithium ion battery.
Nonwoven fabrics (nonwoven fabrics) is also called adhesive-bonded fabric, textile staple or long filament are carried out orientation or supports row at random, then adopting dry method tension, heat fusing to spray the method such as silk or wet method stretching and make ground fibre net structure, is a kind ofly do not need to spin cotton and weave cloth and the fabric that formed.Nonwoven fabrics breaches traditional weaving principle, has that technological process is short, throughput rate is fast, the plurality of advantages such as output is high, cost is low.The raw material making nonwoven fabrics used mainly contains synthesized polymer material and natural fiber, as polyethylene (PE), polypropylene (PP), polyamide (PA), polytetrafluoroethylene (PTFE), Kynoar (PVDF), polyvinyl chloride (PVC), polyvinyl alcohol (PVA) and cellulose etc., it also can manufacture by different proportion mixing by multiple raw material by a kind of raw material are obtained.The pore-size distribution of nonwoven fabrics is many, and between 1 μm to 100 μm, homogeneity is very poor, and lithium ion battery separator requires that pore diameter range is at 0.03 μm-0.1 μm, the porosity of 30-60% and high hole homogeneity.As can be seen here, directly can not serve as lithium ion battery separator without screen cloth, but nonwoven production cost is low, production technology is simple, and low price is for high capacity lithium ion battery very attractive.
At present, nonwoven fabrics is by a large amount of for main flow alkaline battery (as ni-mh, nickel-cadmium cell) barrier film, but it is less to be used as the research of lithium ion battery polymer electrolyte to its modification, has no Patents report.
Summary of the invention
The object of the invention is to overcome existing gel polymer electrolyte bad mechanical strength, production cost is high, extremely difficult shortcoming of being used widely in Large Copacity, high power, lithium ion battery with high energy density, there is provided a class high conductivity, macroion transport number, good mechanical property, security performance is high, stable chemical performance, production cost is low, the nonwoven fabrics modification lithium-ion gel polymer electrolyte good with common electrodes match materials.
Another object of the present invention is to provide a kind of above-mentioned method for preparing gel polymer electrolyte and the application in lithium ion battery thereof.
Lithium ion battery gel polymer electrolyte provided by the invention, is made up of the compound obtained after the macromolecular material compound outside nonwoven fabrics and nonwoven fabrics and liquid electrolyte.Wherein:
Described nonwoven fabrics is one or more compositions of the macromolecular materials such as PP, PE, PA, PVDF, PTFE, PET, PA6, PLA, PBI, PVC, PVA, PC, PPS, PU, terylene, polypropylene fibre, spandex, aramid fiber, carbon fiber, polyvinyl, viscose, polyamide fibre, natural fiber, inorfil; Described macromolecular material is the homopolymers of polyethers, polyacrylonitrile, polyacrylate and Kynoar (PVDF), copolymer or blend.
Above-mentioned gel polymerisation method for preparing polymer electrolytes provided by the invention, concrete steps are:
(1) by described macromolecular material in 40 oc-80 obe dissolved in solvent at temperature under C, obtain the macromolecule material solution of homogeneous clarification, be chilled to room temperature;
(2) with soaking or casting method, being flooded by other macromolecule material solution described in the macropore differed in nonwoven fabrics aperture, by solvent evaporates, obtaining compound;
(3) above-mentioned compound is placed in vacuum drying chamber, 40 oc-120 odry under C condition, remove trace solvent;
(4) in anhydrous and oxygen-free environment, dried compound is soaked 1 minute to 24 hours in the electrolytic solution, namely obtain required lithium ion battery gel polymer electrolyte.
In step (1), described solvent is one or more composition of acetone, DMF, DMA, 1-METHYLPYRROLIDONE.Course of dissolution is 40 oc-80 ostir to clarify under C.
In step (2), adopt the operation of infusion method as follows: by nonwoven fabrics vertical immersion 0.5 hour-10 hours (preferably 0.5 hour-6 hours) in described Polymer Solution, slowly to take out, the state of naturally drooping is volatilized dry solvent, obtains material modified; Casting method operation is as follows: by nonwoven fabrics Four built in boundaries on the glass plate of smooth pieces, evenly to cast described Polymer Solution in exposed one side, takes off after film forming of volatilizing.Repeat same casting film process at nonwoven fabrics another side, namely the dry solvent that volatilizees obtains product.
In step (3), after described non-woven fabric compounded thing carries out vacuumize, be placed in water content and be less than 50ppm and oxygen content is preserved under being less than the environment of 50ppm.
In step (4), described gel polymer electrolyte of preparing need carry out in glove box (argon atmospher, moisture is less than 1ppm).
In step (4), the electrolyte of employing is made up of lithium hexafluoro phosphate and carbonates, and the molar concentration of lithium hexafluoro phosphate is 0.5 mol l -1– 2 mol l -1.Soak time preferably 1 hour-12 hours in the electrolytic solution.
The compound that the present invention obtains after adopting nonwoven fabrics and other macromolecular material compound and Liquid Electrolyte Gels prepare compound nonwoven cloth gel polymer electrolyte, gained gelatin polymer film not only has the feature that nonwoven fabrics mechanical strength is large, production cost is low, and conductivity is high, electrochemical window is wide, good cycle, security performance is high, can be used for the lithium ion battery of Large Copacity, high power, high-energy-density.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 nonwoven fabrics used (NWF, material: PP/PE), other macromolecular material (PVDF) and gained compound (PVDF-NWF) infared spectrum.
Fig. 2 is the embodiment of the present invention 1 nonwoven fabrics used (NWF, material: PP/PE) front, the front of profile scanning Electronic Speculum figure (a, b) and gained compound (PVDF-NWF), profile scanning Electronic Speculum figure (c, d).
Fig. 3 is the DSC figure of the embodiment of the present invention 1 nonwoven fabrics used (NWF, material: PP/PE), other macromolecular material (PVDF), gained compound (PVDF-NWF) and comparative example Celgard 2730 used barrier film.
Fig. 4 is the pulling force-stress curve of the embodiment of the present invention 1 nonwoven fabrics used (NWF, material: PP/PE), gained compound (PVDF-NWF) and comparative example Celgard 2730 used barrier film.
Fig. 5 is the combustion testing figure of the non-woven fabric compounded thing of the embodiment of the present invention 1 gained (PVDF-NWF) (b, d) and comparative example gained Celgard 2730 barrier film (a, c).
Fig. 6 is the embodiment of the present invention 1 gained gel polymer electrolyte (PVDF-NWF) and comparative example gained 1 mol l -1liPF 6the DSC curve of Celgard 2730 barrier film that electrolyte is saturated.
Fig. 7 is the embodiment of the present invention 1 gained gel polymer electrolyte (PVDF-NWF) and comparative example gained 1 mol l -1liPF 6the lithium ion transference number resolution chart of Celgard 2730 barrier film that electrolyte is saturated.
Fig. 8 is the embodiment of the present invention 1 gained gel polymer electrolyte (PVDF-NWF) and comparative example gained 1 mol l -1liPF 6the Arrhenius Equation curve of Celgard 2730 barrier film that electrolyte is saturated.
Fig. 9 is the embodiment of the present invention 1 gained gel polymer electrolyte (PVDF-NWF) (a) and comparative example gained 1 mol l -1liPF 6the charging and discharging curve of Celgard 2730 barrier film (b) that electrolyte is saturated.
Figure 10 is the embodiment of the present invention 1 gained gel polymer electrolyte (PVDF-NWF) and comparative example gained 1 mol l -1liPF 6the cycle performance figure of Celgard 2730 barrier film that electrolyte is saturated.
Embodiment
Embodiment 1
(1) by PVDF be by mass percentage 10% ratio be dissolved in DMAc, 40 oadd thermal agitation in the water-bath of C and must clarify uniform solution in 2 hours, be chilled to room temperature.
(2) nonwoven fabrics (material: PP/PE) is fixed on smooth pieces glass plate, by obtained PVDF solution casting on nonwoven fabrics, by doctor blade, is placed in 80 osolvent flashing on C heating plate, takes off after 4 hours and is chilled to room temperature.The nonwoven cloth cover pouring into a mould PVDF is close to glass plate nonwoven fabrics is fixed, coating solution is cast on nonwoven fabrics, by doctor blade, be placed in 80 osolvent flashing on C heating plate, takes off after 4 hours and is chilled to room temperature and namely obtains PVDF compound nonwoven cloth (PP/PE).
(3), after PVDF compound nonwoven cloth being cut into appropriate size, vacuum drying chamber 80 is placed in oc condition lower 24 hours dry removal trace solvent, vacuum is chilled to room temperature and shifts into glove box.Nonwoven fabrics composite film is immersed in 1 mol l -1liPF 6within in electrolyte (purchased from Guotai Huarong Chemical New Material Co., Ltd., Zhangjiagang City) 6 hours, namely obtain PVDF compound nonwoven cloth (PP/PE) gel electrolyte.
Embodiment 2
(1) by PVDF-HFP be by mass percentage 10% ratio be dissolved in DMAc, 60 oadd thermal agitation in the water-bath of C and must clarify uniform solution in 2 hours.Be chilled to room temperature, for subsequent use.
(2) nonwoven fabrics (PP/PE) is fixed on smooth pieces glass plate, by obtained PVDF-HFP solution casting on nonwoven fabrics, by doctor blade, is placed in 80 osolvent flashing on C heating plate, takes off after 4 hours and is chilled to room temperature.The nonwoven cloth cover pouring into a mould PVDF-HFP is close to glass plate nonwoven fabrics is fixed, coating solution is cast on nonwoven fabrics, by doctor blade, be placed in 80 osolvent flashing on C heating plate, takes off after 4 hours and is chilled to room temperature and namely obtains PVDF-HFP compound nonwoven cloth (PP/PE).
(3), after PVDF-HFP compound nonwoven cloth being cut into appropriate size, vacuum drying chamber 80 is placed in oc condition lower 24 hours dry removal trace solvent, vacuum is chilled to room temperature and shifts into glove box.Nonwoven fabrics composite film is immersed in 1.5 mol l -1liPF 6within in electrolyte (purchased from Guotai Huarong Chemical New Material Co., Ltd., Zhangjiagang City) 8 hours, namely obtain PVDF-HFP compound nonwoven cloth (PP/PE) gel electrolyte.
Embodiment 3
(1) by PVDF be by mass percentage 10% ratio be dissolved in DMAc, 80 oadd thermal agitation in the water-bath of C and must clarify uniform solution in 1.5 hours.Be chilled to room temperature, for subsequent use.
(2) nonwoven fabrics (fibre and soya) is fixed on smooth pieces glass plate, by obtained PVDF solution casting on nonwoven fabrics, by doctor blade, is placed in 80 osolvent flashing on C heating plate, takes off after 4 hours and is chilled to room temperature.The nonwoven cloth cover pouring into a mould PVDF is close to glass plate nonwoven fabrics is fixed, coating solution is cast on nonwoven fabrics, by doctor blade, be placed in 80 osolvent flashing on C heating plate, takes off after 4 hours and is chilled to room temperature and namely obtains PVDF compound nonwoven cloth (fibre and soya).
(3), after PVDF compound nonwoven cloth being cut into appropriate size, vacuum drying chamber 80 is placed in oc condition lower 24 hours dry removal trace solvent, vacuum is chilled to room temperature and shifts into glove box.Nonwoven fabrics composite film is immersed in 1 mol l -1liPF 6within in electrolyte (purchased from Guotai Huarong Chemical New Material Co., Ltd., Zhangjiagang City) 10 hours, namely obtain PVDF compound nonwoven cloth (fibre and soya) gel electrolyte.
Embodiment 4
(1) by PVDF-HFP be by mass percentage 10% ratio be dissolved in DMAc, 40 oadd thermal agitation in the water-bath of C and must clarify uniform solution in 2 hours.Be chilled to room temperature, for subsequent use.
(2) nonwoven fabrics (fibre and soya) is fixed on smooth pieces glass plate, by obtained PVDF-HFP solution casting on nonwoven fabrics, by doctor blade, is placed in 80 osolvent flashing on C heating plate, takes off after 4 hours and is chilled to room temperature.The nonwoven cloth cover pouring into a mould PVDF-HFP is close to glass plate nonwoven fabrics is fixed, coating solution is cast on nonwoven fabrics, by doctor blade, be placed in 80 osolvent flashing on C heating plate, takes off after 4 hours and is chilled to room temperature and namely obtains PVDF-HFP compound nonwoven cloth (fibre and soya).
(3), after PVDF-HFP compound nonwoven cloth being cut into appropriate size, vacuum drying chamber 80 is placed in oc condition lower 24 hours dry removal trace solvent, vacuum is chilled to room temperature and shifts into glove box.Nonwoven fabrics composite film is immersed in 1 mol l -1liPF 6within in electrolyte (purchased from Guotai Huarong Chemical New Material Co., Ltd., Zhangjiagang City) 4 hours, namely obtain PVDF compound nonwoven cloth (fibre and soya) gel electrolyte.
Comparative example
After commercial li-ion battery diaphragm (Celgard 2730, PE) is cut into appropriate size, be placed in vacuum drying chamber 80 odrying under reduced pressure 24 hours under C condition, vacuum is chilled to room temperature and shifts into glove box.Celgard 2730 barrier film is needed to be immersed in 1 mol l before carrying out electro-chemical test -1liPF 6in electrolyte (purchased from Guotai Huarong Chemical New Material Co., Ltd., Zhangjiagang City) 6 hours.
In the PVDF compound nonwoven cloth (PP/PE) obtain above-described embodiment 1 method and comparative example, Celgard 2730 barrier film capable infrared, ESEM, TG-DSC, pick up, combustion testing and pulling force stress characterize; To gel polymer electrolyte and 1 mol l -1liPF 6celgard 2730 barrier film that electrolyte is saturated has carried out TG-DSC, conductivity, transference number of ions and charge-discharge test.
Pick up is that compound nonwoven cloth and Celgard 2730 barrier film were immersed in electrolyte after 6 hours, calculates according to formula (1):
η= ( W t– W 0) / W 0× 100% (1)
Wherein, w 0 with w t quality after representing dry film respectively and inhaling full electrolyte.In comparative example, the pick up of Celgard 2730 barrier film is 90.9%, and the pick up of PVDF compound nonwoven cloth (PP/PE) gel mould that embodiment 1 method obtains is 83.2%.
Conductivity is calculated by formula (2):
σ = l / (R b A) (S cm -1) (2)
Wherein, σconductivity, r b the impedance of film, lthe thickness of film, ait is pole-piece area.1 mol l in comparative example -1liPF 6celgard 2730 barrier film that electrolyte is saturated room-temperature conductivity be 0.21 mS cm -1, the room-temperature conductivity of PVDF compound nonwoven cloth (PP/PE) gel mould that embodiment 1 method obtains reaches 0.30 mS cm -1.
Lithium ion transference number is calculated by formula (3):
t Li + = I ss/ I 0
Wherein, I ssthe steady-state current value that timing coulometry obtains, I 0it is the initial state current value that timing coulometry obtains.1 mol l -1liPF 6celgard 2730 barrier film that electrolyte is saturated room temperature lithium ion transference number be 0.27, the room temperature lithium ion transference number of PVDF compound nonwoven cloth (PP/PE) gel mould that embodiment 1 method obtains is 0.43.
Above-mentioned test result is as Fig. 1-10.
From the contrast of comparative example and embodiment, lithium ion battery gel polymer electrolyte based on nonwoven cloth material has the feature of high security (good anti-flammability), high strength, low cost, and there is the conductivity and electrochemical properties that compare favourably with commercial li-ion battery diaphragm, to lithium ion battery particularly high-power, high efficiency, lithium ion battery with high energy density very attractive.

Claims (4)

1. a preparation method for lithium ion battery gel polymer electrolyte, is characterized in that described electrolyte is made up of the compound obtained after the macromolecular material compound beyond nonwoven fabrics and nonwoven fabrics and liquid electrolyte; The concrete steps of preparation are:
(1) by described macromolecular material in 40 oc-80 obe dissolved in solvent at temperature under C, obtain the macromolecule material solution of homogeneous clarification, be chilled to room temperature;
(2) with infusion method or casting method, the macropore differed in nonwoven fabrics aperture is flooded by above-mentioned macromolecule material solution, by solvent evaporates, obtains compound;
(3) above-mentioned compound is placed in vacuum drying chamber, 40 oc-120 odry under C condition, remove trace solvent;
(4) in anhydrous and oxygen-free environment, above-mentioned dried compound is soaked in the electrolytic solution 1 minute to 24 hours, obtain lithium ion battery gel polymer electrolyte;
Solvent described in step (1) is the one of acetone, DMF, DMA, 1-METHYLPYRROLIDONE, or wherein multiple mixture;
In step (2), the operation of described infusion method is as follows: by nonwoven fabrics vertical immersion in described macromolecule material solution 0.5 hour-10 hours, slowly take out, and the state of naturally drooping is volatilized dry solvent, obtains material modified; The operation of described casting method is as follows: by nonwoven fabrics Four built in boundaries on the glass plate of smooth pieces, evenly to cast described macromolecule material solution, take off after film forming of volatilizing in exposed one side; Repeat same casting film process at nonwoven fabrics another side, namely the dry solvent that volatilizees obtains product;
In step (3), after described compound carries out vacuumize, be placed in water content and be less than 50ppm and oxygen content is preserved under being less than the environment of 50ppm;
Step (4) must be carried out in glove box, and be argon atmospher in glove box, moisture is less than 1ppm;
Electrolyte described in step (4) is made up of lithium hexafluoro phosphate and carbonate-based solvent, and the molar concentration of lithium hexafluoro phosphate is at 0.5 molL -1-2 molL -1between.
2. the preparation method of lithium ion battery gel polymer electrolyte as claimed in claim 1, it is characterized in that described nonwoven fabrics is the one in PP, PE, PA, PVDF, PTFE, PET, PA6, PLA, PBI, PVC, PVA, PC, PPS, PU, terylene, polypropylene fibre, spandex, aramid fiber, polyvinyl, viscose, polyamide fibre, inorfil, or wherein several composition.
3. the preparation method of lithium ion battery gel polymer electrolyte as claimed in claim 1, is characterized in that described macromolecular material is polyethers, polyacrylonitrile, polyacrylate, the homopolymers of Kynoar, copolymer or blend.
4. the lithium ion battery gel polymer electrolyte prepared by the described preparation method of one of claim 1-3.
CN201210572448.1A 2012-12-25 2012-12-25 Based on the lithium ion battery gel polymer electrolyte and preparation method thereof of nonwoven fabrics Expired - Fee Related CN103022557B (en)

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Families Citing this family (8)

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CN103441300A (en) * 2013-08-23 2013-12-11 浙江地坤键新能源科技有限公司 Gel polymer electrolyte containing natural high molecular material as well as preparation method and application thereof
CN104022306B (en) * 2014-05-16 2016-06-08 中山大学 A kind of solid porous polymer dielectric and its preparation method and application
CN106046237B (en) * 2016-05-30 2017-12-26 山东大学 Carbon fiber paper and the composite conducting gel film and its preparation method of Sodium Polyacrylate and application
CN106356557B (en) * 2016-10-11 2018-11-06 天津工业大学 A kind of lithium ion battery fluorine doped aramid fiber polymeric compound electrolyte preparation method
CN116632333A (en) * 2019-04-08 2023-08-22 南京工业大学 Preparation method of nylon-based composite gel polymer electrolyte
CN112436186A (en) * 2020-10-30 2021-03-02 曹元成 Polymer solid electrolyte with non-woven fabric as base material and preparation method and application thereof
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CN114221038B (en) * 2021-11-25 2023-03-14 中国民用航空飞行学院 Preparation method of polymer solid electrolyte based on lithium metal battery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1986585A (en) * 2006-12-01 2007-06-27 华南师范大学 Preparing method and application of polymer gel electrolyte for lithium ion cell
CN101388441A (en) * 2007-09-11 2009-03-18 松下电器产业株式会社 Electrolyte film and porous substrate and preparation thereof, lithium ion secondary battery
CN101621134A (en) * 2009-06-23 2010-01-06 华南师范大学 Gel polymer lithium ion battery electrolyte, preparation method and application thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002237332A (en) * 2001-02-08 2002-08-23 Oji Paper Co Ltd Non-woven fabric composite gel-like electrolyte for polymer battery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1986585A (en) * 2006-12-01 2007-06-27 华南师范大学 Preparing method and application of polymer gel electrolyte for lithium ion cell
CN101388441A (en) * 2007-09-11 2009-03-18 松下电器产业株式会社 Electrolyte film and porous substrate and preparation thereof, lithium ion secondary battery
CN101621134A (en) * 2009-06-23 2010-01-06 华南师范大学 Gel polymer lithium ion battery electrolyte, preparation method and application thereof

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