CN110218276A - A kind of cyclic carbonate ester base polymer electrolyte being prepared in situ and its application in solid state lithium battery - Google Patents
A kind of cyclic carbonate ester base polymer electrolyte being prepared in situ and its application in solid state lithium battery Download PDFInfo
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Abstract
The present invention relates to polymer dielectric, specifically a kind of cyclic carbonate ester base polymer electrolyte and in-situ preparation method and its application in solid state lithium battery.By cyclocarbonate radical monomer or cyclocarbonate radical monomers/comonomers, organic plasticizer, lithium salts, initiator, the in-situ polymerization in lithium battery obtains the electrolyte.Polymer dielectric of the invention has many advantages, such as electrochemical window mouth width, lithium ion conductivity height, good mechanical property, can effectively inhibit the generation of Li dendrite, improve high voltage cycle stability.
Description
Technical field
The present invention relates to solid state lithium battery field, specifically a kind of cyclic carbonate ester high pressure resistant, ionic conductivity is high
Base polymer electrolyte and solid state lithium battery and its preparation containing the electrolyte.
Background technique
Lithium ion secondary battery has many advantages, such as high-energy density, long circulation life, memory-less effect, and recent decades are
The development advanced by leaps and bounds has been widely used for the fields such as small-sized energy storage device, electric car, smart grid at present.
However, the common organic carbonates liquid electrolyte of lithium ion battery, there is the security risks such as leakage, on fire, explosion, lithiums
Non-uniform deposition and abjection will lead to the generation of Li dendrite, eventually lead to the even short circuit of cycle performance variation, flatulence.In order to press down
The generation of Li dendrite processed improves cyclical stability, and scholars propose a series of improved method, wherein using solid electrolyte
The lasting side reaction in interface is avoided that instead of liquid electrolyte, and higher mechanical performance can also inhibit lithium branch to a certain extent
Brilliant generation improves interface stability, effectively improves the security performance of lithium battery.
Solid electrolyte has the advantage that 1. have higher mechanical strength, can inhibit the life of Li dendrite to a certain extent
At；2. lasting interfacial reaction, good cycle is not present in lithium an- ode and solid electrolyte interface, internal resistance is stablized；3.
Electrochemical window is wider, is conducive to the energy density for improving battery；4. it is nonflammable, not easy to explode, it has a safety feature.
Solid electrolyte can be divided into inorganic solid electrolyte and organic solid-state electrolyte, and inorganic electrolyte mainly includes
Oxide and sulfide.201410036348.6 with 201510603965.4 individually disclose phosphate fast ion conducting material and
Garnet structure ceramic electrolyte.Inorganic solid electrolyte lithium ion conductivity height, good mechanical property, but poor toughness leads to electricity
Pole and electrolyte interface poor compatibility, limit its practical application.
In organic solid-state electrolyte, polyethylene glycol oxide (PEO) is due to its performance with preferable toughness, transmission lithium ion
And preparation process is fairly simple, is a kind of most polymer electrolyte systems of research.201410378107.X and
200680012628.7 disclose using PEO as the preparation of the polymer dielectric of matrix, although ionic conductivity has to a certain degree
Promotion, but the electrochemical window of PEO be lower than 4.2V, it is difficult to match high-voltage anode material, do not meet high-energy density electricity
The requirement of pond body system.And a kind of polypropylene carbonate (PPC) disclosed in 201510078309.7 is the polymer dielectric of matrix,
Lithium ion conductivity is higher at room temperature, but the interface contacted under low potential with cathode of lithium is easier to decompose, and is not sufficiently stable.
Summary of the invention
The purpose of the present invention is to provide a kind of applied to the electrochemical window mouth width of solid state lithium battery, lithium ion conductivity
Height, good mechanical property, the cyclic carbonate ester base polymer electrolyte that high-voltage anode material can be matched and its composition solid-state lithium
Battery and its preparation.
The technical solution adopted by the present invention to achieve the above object are as follows:
A kind of cyclic carbonate ester base polymer electrolyte, the cyclocarbonate radical polymer lateral chain include ethylene carbonate and carbamic acid
Ester structure unit, the polymer dielectric is by cyclocarbonate radical monomer or cyclocarbonate radical monomers/comonomers, organic plasticizing
Agent, lithium salts, initiator in-situ polymerization obtain.
The cyclic carbonate ester based polyalcohol is cyclocarbonate radical homopolymer or its copolymer.
The cyclocarbonate radical monomer structure is as follows:
Wherein the value of A is H, methyl, F, CN；The value of w is 1-4.
The comonomer isWherein the value of B is NH, O；The value of D is H, methyl；X−'s
Value is PF6 -, BF4 -, TFSI-, FSI-, CH3OSO3 -、Wherein the value of D is H, methyl；The value of v is
1-4、Wherein the value of D is H, methyl；The value of v is 1-4；The value of B be NH, O,Wherein the value of D be H, methyl,Wherein the value of D is
H, methyl,Wherein the value of B is NH, O；The value of D is H, methyl, maleic anhydride
(MAH), vinylacetate (VA), acrylonitrile (AN), acrylamide (AM), cyanoacrylate (ECA) and methyl methacrylate
One or more of ester (MMA);The mass ratio 20:80-90:10 of cyclocarbonate radical monomer and comonomer.
The organic plasticizer is ethylene carbonate (EC), propene carbonate (PC), vinylene carbonate (VC), carbonic acid two
Methyl esters (DMC), one or more of succinonitrile (SN), glutaronitrile (GN), adiponitrile (ADN), sulfolane (TMS)；The lithium
Salt is lithium hexafluoro phosphate (LiPF6), lithium perchlorate (LiClO4), di-oxalate lithium borate (LiBOB), difluorine oxalic acid boracic acid lithium
(LiDFOB), trifluoromethanesulfonic acid lithium (CF3SO3Li), double trifluoromethanesulfonimide lithiums (LiTFSI) and double fluorine sulfimide lithiums
One of (LiFSI) or it is several；The initiator is azodiisobutyronitrile (AIBN), azobisisoheptonitrile (ABVN), even
Two isobutyl dimethyl phthalate (AIBME) of nitrogen, benzoyl peroxide (BPO), benzoyl peroxide (TBPB) and peroxidating first
One of ethyl ketone (MEKPO).
A kind of cyclocarbonate radical method for preparing polymer electrolytes, comprises the following steps that:
(1) lithium salts is dissolved in organic plasticizer in certain proportion, is uniformly mixed, obtains mixture；
(2) cyclocarbonate radical monomer or cyclocarbonate radical monomers/comonomers are added in said mixture；
(3) a certain amount of initiator is added in the above solution, is dissolved to form uniform solution, the quality of lithium salts in the solution point
Number is 20% -50%；The mass fraction of initiator in the solution is 0.5% -1%；
(4) above-mentioned solution is injected in the lithium battery containing positive and negative anodes, is placed under the conditions of 40 DEG C ~ 80 DEG C, makes cyclocarbonate radical
Monomer or cyclocarbonate radical monomers/comonomers in-situ polymerization, obtain cyclic carbonate ester base polymer electrolyte.
The cyclocarbonate radical monomer structure is as follows:
Wherein the value of A is H, methyl, F, CN；The value of w is 1-4；
The comonomer isWherein the value of B is NH, O；The value of D is H, methyl；X−Value
For PF6 -, BF4 -, TFSI-, FSI-, CH3OSO3 -、Wherein the value of D is H, methyl；The value of v be 1-4,Wherein the value of D is H, methyl；The value of v is 1-4；The value of B be NH, O,Wherein the value of D be H, methyl,Wherein the value of D is
H, methyl,Wherein the value of B is NH, O；The value of D is H, methyl, maleic anhydride
(MAH), vinylacetate (VA), acrylonitrile (AN), acrylamide (AM), cyanoacrylate (ECA) and methyl methacrylate
One or more of ester (MMA)；Mass ratio 20:80~90:10 of cyclocarbonate radical monomer and comonomer；
The organic plasticizer is ethylene carbonate (EC), propene carbonate (PC), vinylene carbonate (VC), dimethyl carbonate
(DMC), one or more of succinonitrile (SN), glutaronitrile (GN), adiponitrile (ADN) and sulfolane (TMS)；
The lithium salts is lithium hexafluoro phosphate (LiPF6), lithium perchlorate (LiClO4), di-oxalate lithium borate (LiBOB), difluoro oxalate
Lithium borate (LiDFOB), trifluoromethanesulfonic acid lithium (CF3SO3Li), bis trifluoromethyl sulfimide lithium (LiTFSI) and double fluorine sulphonyl are sub-
One of amine lithium (LiFSI) is several；Mass fraction of the lithium salts in polymer dielectric is 20% ~ 50%；
The initiator is azodiisobutyronitrile (AIBN), azobisisoheptonitrile (ABVN), azo-bis-iso-dimethyl
(AIBME), one in benzoyl peroxide (BPO), benzoyl peroxide (TBPB) and methyl ethyl ketone peroxide (MEKPO)
Kind, mass fraction of the initiator in polymer dielectric is 0.5% -1%.
Preferred technical solution are as follows: comonomer is selected as ACN；Organic plasticizer is selected as SN；Initiator is selected as AIBN；
Less preferred technical solution are as follows: comonomer is selected as MAH；Organic plasticizer is selected as PC；Initiator is selected as BPO.
A kind of application of cyclic carbonate ester base polymer electrolyte in solid state lithium battery, the solid state lithium battery include just
Pole, cathode, the electrolyte between positive cathode, the electrolyte are cyclocarbonate radical polymer electrolytic described above
Matter, the active material of the anode be cobalt acid lithium, LiFePO4, iron manganese phosphate for lithium, nickel ion doped, lithium-rich manganese-based, ternary material,
Sulphur, sulfur compound, ferric sulfate lithium, lithium ion fluorophosphate, lithium vanadium fluorophosphate, lithium iron fluorophosphate, lithium manganese oxide and manganese
One of sour lithium；The active material of the cathode be lithium metal, lithium metal alloy, hard carbon, graphite, molybdenum disulfide, lithium titanate,
One of graphene, antimony oxide, silicon monomer and silicon thin film.
A kind of preparation of solid state lithium battery, with cyclocarbonate radical monomer described above or cyclocarbonate radical monomer/copolymerization
Monomer, organic plasticizer, lithium salts, initiator separate positive and negative anodes pole piece, and sealing gathers in situ under the conditions of 40 DEG C ~ 80 DEG C
Conjunction obtains solid state lithium battery.
The cyclic carbonate ester base polymer electrolyte conductivity at room temperature is 8 × 10-4 ~ 5×10-3 S cm-1, starting
Decomposition voltage range is the V of 5 V ~ 5.3vs. Li+/Li。
The present invention designs a kind of application of cyclic carbonate ester base polymer electrolyte in room temperature solid lithium battery, specific advantage
Are as follows: the segment better mechanical property of the cyclic carbonate ester side chain of cyclic carbonate ester based polyalcohol improves block polymer electrolyte
Mechanical strength；The polymer electrolyte lithium-ion conductivity of preparation is high, and charge and discharge long circulating performance is stablized at room temperature；Electrostrictive polymer
It is good to solve matter antioxygenic property, can match with high-voltage anode, improve the energy density of battery.
The solid electrolyte preparation that the present invention obtains is simple, and room temperature lithium ion conductivity is 8 × 10-4 ~ 5×10-3 S
cm-1, starting decomposition voltage range is the V of 5 V ~ 5.3vs. Li+/Li.Meanwhile the solid electrolyte can effectively inhibit lithium
The growth of dendrite improves the interface stability and long circulating stability of battery.The program may be used on the lithium of high-energy density
In metal battery, lithium alloy negative battery, solid state lithium battery (including lithium-sulfur cell) and other secondary high power lithium batteries.
Detailed description of the invention
High rate performance of the battery of Fig. 1 example 1 group dress in room temperature.
The electrochemical window when battery room temperature that Fig. 2 embodiment 2 assembles.
The long circulating performance for battery 0.5 C at room temperature that Fig. 3 embodiment 3 assembles.
The charging and discharging curve for battery 0.5 C in room temperature that Fig. 4 embodiment 4 assembles.
Specific embodiment
Embodiment 1
LiTFSI/SN solution is configured in the glove box full of argon gas, and adds the LiDFOB of 5wt% thereto, it is equal to its stirring
It is even spare.It will(A1) and LiTFSI/SN(LiDFOB is added in acrylonitrile) fuse salt
Solution, and initiator A IBN is added, after being completely dissolved, solution is injected in the lithium ion battery containing positive and negative pole material, is placed
Make its in-situ polymerization under the conditions of 60 DEG C, in-situ polymerization solid electrolyte required for obtaining after 8h.
Wherein the mass ratio of AIBN is 0.5%.
The raw material proportioning for being used to prepare the solid electrolyte is as shown in table 1, prepare resulting solid electrolyte room temperature lithium from
Electron conductivity is 3.2 × 10-3S cm-1, starting decomposition voltage is 5.2V.
Table 1:
Embodiment 2
By LiPF in the glove box full of argon gas6It is dissolved in ECDMC, is stirred evenly to it spare.It will(A1) in the above solution, initiator is added, after being completely dissolved, by solution in dissolution
It injects in the lithium ion battery containing positive and negative pole material, its in-situ polymerization is made under the conditions of being placed on 60 DEG C, required for being obtained after 8h
In-situ polymerization solid electrolyte.
Wherein the mass ratio of AIBN is 0.5%.
The raw material proportioning for being used to prepare the solid electrolyte is as shown in table 2, prepare resulting solid electrolyte room temperature lithium from
Electron conductivity is 2.3 × 10-3S cm-1, starting decomposition voltage is 5.3V.
Table 2:
Embodiment 3
1M LiDFOB/PC solution is configured in the glove box full of argon gas, is stirred evenly to it spare.It will(A1) and isopropyl cyanoacrylate co-dissolve is in LiDFOB/PC solution,
And initiator A IBN is added, after being completely dissolved, solution is injected in the lithium ion battery containing positive and negative pole material, is placed on 60 DEG C
Under the conditions of make its in-situ polymerization, in-situ polymerization solid electrolyte required for being obtained after 8h.
Wherein the mass ratio of AIBN is 0.5%.
The raw material proportioning for being used to prepare the solid electrolyte is as shown in table 3, prepare resulting solid electrolyte room temperature lithium from
Electron conductivity is 3.2 × 10-3S cm-1, starting decomposition voltage is 5.2V.
Table 3:
Embodiment 4
LiTFSI/SN solution is configured in the glove box full of argon gas, and adds the LiDFOB of 5wt% thereto, it is equal to its stirring
It is even spare.It will(A1) and(B1) it is dissolved in 2.5M
In LiTFSI/SN solution, initiator A IBN is added, after being completely dissolved, solution is injected into the lithium ion containing positive and negative pole material
In battery, its in-situ polymerization is made under the conditions of being placed on 60 DEG C, in-situ polymerization solid electrolyte required for obtaining after 8h.
Wherein the mass ratio of AIBN is 0.5%.
The raw material proportioning for being used to prepare the solid electrolyte is as shown in table 4, prepare resulting solid electrolyte room temperature lithium from
Electron conductivity is 3.6 × 10-3S cm-1, starting decomposition voltage is 5.2V.
Table 4:
Embodiment 5
LiDFOB/PC solution is configured in the glove box full of argon gas, is stirred evenly to it spare.It will(A1) and(B2) it is dissolved in LiDFOB/PC solution,
Initiator A IBN is added, after being completely dissolved, solution is injected in the lithium ion battery containing positive and negative pole material, is placed on 60 DEG C
Under the conditions of make its in-situ polymerization, in-situ polymerization solid electrolyte required for being obtained after 8h.
Wherein the mass ratio of AIBN is 0.5%.
The raw material proportioning for being used to prepare the solid electrolyte is as shown in table 5, prepare resulting solid electrolyte room temperature lithium from
Electron conductivity is 5.2 × 10-3S cm-1, starting decomposition voltage is 5.1V.
Table 5:
Embodiment 6
LiTFSI/TMS solution is configured in the glove box full of argon gas, is stirred evenly to it spare.It will(A1) and(B3) it is dissolved in LiTFSI/TMS solution,
Initiator A IBN is added, after being completely dissolved, solution is injected in the lithium ion battery containing positive and negative pole material, is placed on 60 DEG C
Under the conditions of make its in-situ polymerization, in-situ polymerization solid electrolyte required for being obtained after 8h.
Wherein the mass ratio of AIBN is 0.5%.
The raw material proportioning for being used to prepare the solid electrolyte is as shown in table 6, prepare resulting solid electrolyte room temperature lithium from
Electron conductivity is 2.8 × 10-3S cm-1, starting decomposition voltage is 5.3V.
Table 6:
Embodiment 7
LiPF is configured in the glove box full of argon gas6/ ECDMC solution, stirs evenly spare to it.It will(A2) and(B4) LiPF is added6/
In ECDMC solution, and TBPB is added, after being completely dissolved, solution is injected in the lithium ion battery containing positive and negative pole material, is placed
Make its in-situ polymerization under the conditions of 60 DEG C, in-situ polymerization solid electrolyte required for obtaining after 8h.
Wherein the mass ratio of TBPB is 0.5%.
The raw material proportioning for being used to prepare the solid electrolyte is as shown in table 7, prepare resulting solid electrolyte room temperature lithium from
Electron conductivity is 1.2 × 10-3S cm-1, starting decomposition voltage is 5.1V.
Table 7:
Embodiment 8
LiTFSI/SN solution is configured in the glove box full of argon gas, and adds the LiDFOB of 5wt% thereto, it is equal to its stirring
It is even spare.It will(A2) and(B5) it is dissolved in
LiTFSI/SN(LiDFOB) in molten salt solution, and initiator TPO is added, after being completely dissolved, solution injection is contained into positive and negative anodes
In the lithium ion battery of material, its in-situ polymerization is made under the conditions of being placed on 60 DEG C, in-situ polymerization solid-state required for obtaining after 8h
Electrolyte.
Wherein the mass ratio of TPO is 0.5%.
The raw material proportioning for being used to prepare the solid electrolyte is as shown in table 8, prepare resulting solid electrolyte room temperature lithium from
Electron conductivity is 2.7 × 10-3S cm-1, starting decomposition voltage is 5.3V.
Table 8:
Claims (10)
1. a kind of cyclic carbonate ester base polymer electrolyte, it is characterised in that: cyclocarbonate radical polymer lateral chain includes ethylene carbonate
Ester and carbamate structures unit, the polymer dielectric is by cyclocarbonate radical monomer or cyclocarbonate radical monomer/copolymerization list
Body, organic plasticizer, lithium salts, initiator in-situ polymerization obtain.
2. a kind of cyclic carbonate ester base polymer electrolyte according to claim 1, which is characterized in that the cyclocarbonate radical
Polymer is cyclocarbonate radical homopolymer or its copolymer.
3. a kind of cyclic carbonate ester base polymer electrolyte according to claim 1, the cyclocarbonate radical monomer structure is such as
Under:
Wherein the value of A is H, methyl, F, CN；The value of w is 1-4.
4. a kind of cyclic carbonate ester base polymer electrolyte according to claim 1, the comonomer areWherein the value of B is NH, O；The value of D is H, methyl；X−Value be PF6 -, BF4 -, TFSI-,
FSI-, CH3OSO3 -、Wherein the value of D is H, methyl；The value of v be 1-4,
Wherein the value of D is H, methyl；The value of v is 1-4；The value of B be NH, O,Wherein
The value of D be H, methyl,Wherein the value of D be H, methyl,Its
The value of middle B is NH, O；The value of D is H, methyl, maleic anhydride (MAH), vinylacetate (VA), acrylonitrile (AN), propylene
One or more of amide (AM), cyanoacrylate (ECA) and methyl methacrylate (MMA);Cyclocarbonate radical monomer
With the mass ratio 20:80-90:10 of comonomer.
5. a kind of cyclic carbonate ester base polymer electrolyte according to claim 1, the organic plasticizer is ethylene carbonate
Ester (EC), propene carbonate (PC), vinylene carbonate (VC), dimethyl carbonate (DMC), succinonitrile (SN), glutaronitrile (GN),
One or more of adiponitrile (ADN), sulfolane (TMS)；The lithium salts is lithium hexafluoro phosphate (LiPF6), lithium perchlorate
(LiClO4), di-oxalate lithium borate (LiBOB), difluorine oxalic acid boracic acid lithium (LiDFOB), trifluoromethanesulfonic acid lithium (CF3SO3Li), double
One of trifluoromethanesulfonimide lithium (LiTFSI) and double fluorine sulfimide lithiums (LiFSI) are several；The initiator
For azodiisobutyronitrile (AIBN), azobisisoheptonitrile (ABVN), azo-bis-iso-dimethyl (AIBME), benzoyl peroxide first
One of acyl (BPO), benzoyl peroxide (TBPB) and methyl ethyl ketone peroxide (MEKPO).
6. a kind of cyclocarbonate radical method for preparing polymer electrolytes as described in claim 1, which is characterized in that including with
Lower processing step:
(1) lithium salts is dissolved in organic plasticizer in certain proportion, is uniformly mixed, obtains mixture；
(2) cyclocarbonate radical monomer or cyclocarbonate radical monomers/comonomers are added in said mixture, are obtained uniform molten
Liquid；
(3) a certain amount of initiator is added in the above solution, is dissolved to form uniform solution, the quality of lithium salts in the solution point
Number is 20% -50%；The mass fraction of initiator in the solution is 0.5% -1%；
(4) above-mentioned solution is injected in the lithium battery containing positive and negative anodes, is placed under the conditions of 40 DEG C ~ 80 DEG C, makes cyclocarbonate radical
Monomer or cyclocarbonate radical monomers/comonomers in-situ polymerization, obtain cyclic carbonate ester base polymer electrolyte.
7. a kind of cyclocarbonate radical method for preparing polymer electrolytes according to claim 6, it is characterised in that: described
Cyclocarbonate radical monomer structure is as follows:
Wherein the value of A is H, methyl, F, CN；The value of w is 1-4；
The comonomer isWherein the value of B is NH, O；The value of D is H, methyl；X−Value
For PF6 -, BF4 -, TFSI-, FSI-, CH3OSO3 -、Wherein the value of D is H, methyl；The value of v be 1-4,Wherein the value of D is H, methyl；The value of v is 1-4；The value of B be NH, O,Wherein the value of D be H, methyl,Wherein the value of D is
H, methyl,Wherein the value of B is NH, O；The value of D is H, methyl, maleic anhydride
(MAH), vinylacetate (VA), acrylonitrile (AN), acrylamide (AM), cyanoacrylate (ECA) and methyl methacrylate
One or more of ester (MMA)；Mass ratio 20:80~90:10 of cyclocarbonate radical monomer and comonomer；
The organic plasticizer is ethylene carbonate (EC), propene carbonate (PC), vinylene carbonate (VC), dimethyl carbonate
(DMC), one or more of succinonitrile (SN), glutaronitrile (GN), adiponitrile (ADN) and sulfolane (TMS)；
The lithium salts is lithium hexafluoro phosphate (LiPF6), lithium perchlorate (LiClO4), di-oxalate lithium borate (LiBOB), difluoro oxalate
Lithium borate (LiDFOB), trifluoromethanesulfonic acid lithium (CF3SO3Li), bis trifluoromethyl sulfimide lithium (LiTFSI) and double fluorine sulphonyl are sub-
One of amine lithium (LiFSI) is several；Mass fraction of the lithium salts in polymer dielectric is 20% ~ 50%；
The initiator is azodiisobutyronitrile (AIBN), azobisisoheptonitrile (ABVN), azo-bis-iso-dimethyl
(AIBME), one in benzoyl peroxide (BPO), benzoyl peroxide (TBPB) and methyl ethyl ketone peroxide (MEKPO)
Kind, mass fraction of the initiator in polymer dielectric is 0.5% -1%.
8. a kind of solid state lithium battery, including anode, cathode, the electrolyte between positive and negative anodes, it is characterised in that: electrolyte is power
Benefit require 1 described in cyclic carbonate ester base polymer electrolyte.
9. a kind of solid state lithium battery according to claim 8, it is characterised in that: the active material of the anode is cobalt acid
Lithium, LiFePO4, iron manganese phosphate for lithium, nickel ion doped, lithium-rich manganese-based, ternary material, sulphur, sulfur compound, ferric sulfate lithium, lithium ion
One of fluorophosphate, lithium vanadium fluorophosphate, lithium iron fluorophosphate, lithium manganese oxide and LiMn2O4；The activity of the cathode
Material is that lithium metal, lithium metal alloy, hard carbon, graphite, molybdenum disulfide, lithium titanate, graphene, antimony oxide, silicon monomer and silicon are thin
One of film.
10. a kind of preparation of solid state lithium battery, it is characterised in that: with cyclocarbonate radical monomer described in claim 1 or ring carbon
Perester radical monomers/comonomers, organic plasticizer, lithium salts, initiator separate positive and negative anodes pole piece, sealing, 40 DEG C ~ 80
In-situ polymerization obtains solid state lithium battery under the conditions of DEG C.
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