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CN107611392A - A kind of graphene composite material for improving lithium polymer battery mechanical strength - Google Patents

A kind of graphene composite material for improving lithium polymer battery mechanical strength Download PDF

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CN107611392A
CN107611392A CN201710799212.4A CN201710799212A CN107611392A CN 107611392 A CN107611392 A CN 107611392A CN 201710799212 A CN201710799212 A CN 201710799212A CN 107611392 A CN107611392 A CN 107611392A
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graphene
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陈腊保
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Nanjing Halls Biological Technology Co Ltd
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Nanjing Halls Biological Technology Co Ltd
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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
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    • Y02E60/10Energy storage using batteries

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Abstract

The invention discloses a kind of graphene composite material for improving lithium polymer battery mechanical strength, it is prepared by following steps:(1)Selection;(2)Diamine POSS preparation;(3)The preparation of graphene oxide;(4)The reduction of graphene oxide;(5)The preparation of graphene composite material.The present invention can effectively improve lithium polymer battery mechanical strength, with excellent superconductivity energy, the performance such as mechanical property and heat resistance, it will not be weakened using rear ionic conductivity and electrochemical stability for a long time, lithium polymer battery after a long time use will not aging, increase life-span of battery charging and discharging.

Description

A kind of graphene composite material for improving lithium polymer battery mechanical strength
Technical field
The present invention relates to carbon material technical field, more particularly to a kind of graphene for improving lithium polymer battery mechanical strength Composite.
Background technology
Graphene (Graphene) is the only one layer of atomic thickness for being stripped out from graphite material, being made up of carbon atom Two dimensional crystal.2004, Univ Manchester UK physicist An Deliegaimu and Constantine's Nuo Woxiao loves, Graphene is isolated in success from graphite, it was demonstrated that therefore it can also obtain Nobel's thing in 2010 jointly with individualism, two people Neo-Confucianism prize.Graphene is both most thin material, and most tough material, 200 times more taller than best steel of fracture strength. It has good elasticity again simultaneously, and stretch range can reach the 20% of own dimensions.It is that current nature is most thin, intensity highest Material, if making hammock with the graphene of one piece of 1 square metre of area, weight itself can be to bear one less than 1 milligram One kilogram of cat.Graphene most potential application at present is the substitute as silicon, ultra micro transistor npn npn is manufactured, for producing Following supercomputer.Substitute silicon with graphene, the speed of service of computer processor will be fast hundreds times.In addition, graphite Alkene is almost fully transparent, only absorbs 2.3% light.On the other hand, it is very fine and close, even minimum gas atom (helium Atom) it can not also penetrate.These features cause it to be highly suitable as the raw material of transparent electron product, and such as transparent touch is shown Screen, luminescent screen and solar panel.
A kind of novel nano-material most strong as the most thin, maximum intensity, electrical and thermal conductivity performance that have now been found that, graphene It is referred to as " dark fund ", is " king of new material ", scientist even foretells that graphene " will thoroughly change 21 century ".Very likely lift Play a subversiveness new technology new industrial revolution have swept the globe.
After Pu Lai get in 1859 trial-produces chemical conversion formula lead-acid accumulator successfully, electrochmical power source enters people's bud. In the evolution of more than 100 years, the electrochmical power source of new range is continuously emerged, and the performance of electrochmical power source is constantly improved.Especially It is that the development of electrochmical power source is rapider after World War II.Cd-Ni batteries, production the 1980s are generated later MH-Ni batteries have been given birth to, by the exploration of nearly 20 years, have developed lithium ion battery and lighium polymer in early 1990s finally Battery, their development have also been arrived i.e. by the stage of commercialization, and at present, lithium ion battery is with its high specific energy density and service life Grow and be taken seriously, quickly grow, lithium polymer battery is also given priority in the countries and regions such as the U.S., Japan and Taiwan.Lithium gathers The development of compound battery is swift and violent, progressively substitutes cadmium nickel and Ni-H cell, makees grinding for electrode and electrolyte using polymer It is particularly noticeable to study carefully exploitation.But the ionic conductivity and mechanical strength of current lithium polymer battery are poor, manufacturing process Complexity, battery volume is larger, and battery capacity is inadequate, because positive active material and negative electrode active material easily come off, for a long time Poor using rear ionic conductivity and electrochemical stability, isolating film strength and stability can also become with the use of battery Change, it is easy to cause lithium polymer battery aging after a long time use, the life-span of discharge and recharge is very restricted.
The invention provides a kind of graphene composite material for improving lithium polymer battery mechanical strength.
The content of the invention
The technical problems to be solved by the invention are:Provide a kind of graphite for improving lithium polymer battery mechanical strength Alkene composite.
To be answered in order to solve the above technical problems, the invention provides a kind of graphene for improving lithium polymer battery mechanical strength Condensation material, comprise the following steps:
(1)Selection:Component composition including following parts by weight:The parts by weight of graphene 50, diamine POSS 11-13 parts by weight, close Golden steel 1-3 parts by weight, concentrated sulfuric acid 35-55 parts by weight, benzene alkene nitrile-St copolymer 4-10 parts by weight, bisphenol epoxies tree Fat 20-26 parts by weight, carborundum 4-6 parts by weight, sodium nitrate 15-25 parts by weight, hydroxyethyl cellulose 4-8 parts by weight, tetramethyl Ammonium hydroxide 3-7 parts by weight, nano-zinc oxide powder 4-6 parts by weight, hydrogen sulfide 5-9 parts by weight, hydroquinones 1-5 parts by weight, Deionized water 55-65 parts by weight, 5% hydrogen peroxide 30-40 parts by weight, absolute ethyl alcohol 60-70 parts by weight, cyclopentadienyl titanium dichloride 10-12 Parts by weight;Wherein, the steel alloy includes iron-carbon alloy, aluminium, copper and mickel;The carborundum includes quartz sand, petroleum coke and not Sang Shi;
(2)Diamine POSS preparation:Added successively into 500mL three-necked flask 500mL toluene, 75mL deionized waters and 8gTEAOH, magnetic agitation 60min, 15mLAPS and 26mLPTES mixed liquor is then added dropwise, is obtained after being heated to reflux 48h Transparency liquid, continue to heat 50min volatilization toluene, obtain lime milky product, washed with the mixed solution of tetrahydrofuran and methanol Product is washed, is freezed under vacuum condition and obtains product diamine POSS;
(3)The preparation of graphene oxide:A, according to step(1)In each parts by weight of raw materials weigh graphite powder keep bath temperature be The concentrated sulfuric acid is added under 15-25 DEG C of condition of ice bath as solvent, is stirred after 30-40min and is slowly added to sodium nitrate, sulphur successively Change hydrogen, stir 20-30min;45-55 DEG C, stirring reaction 2-3h is warming up to, 95 DEG C is then heated to and adds deionized water and eight benzene Base POSS, 30-40min is stirred, stop reaction, add 5% hydrogen peroxide, centrifuged while hot, respectively with appropriate 5% watery hydrochloric acid and distilled water Washing, graphene oxide first product is made;
B, by graphene oxide first product made from above-mentioned steps a with and carborundum be stirred, adsorbed, be made oxidation stone Black alkene;
(4)The reduction of graphene oxide:By step(3)After obtained graphene oxide mixes with Nano-Zinc powder, according to heating Speed is that to be heated to temperature be 950-1050 DEG C to 15-20 DEG C/min, and constant temperature adds TMAH and keeps 24-26h, obtains Graphene oxide after to reduction;
(5)The preparation of graphene composite material:A, by step(4)Graphene oxide graphene oxide and two after obtained reduction It is scattered in after first amine POSS mixing using ultrasonic wave in appropriate absolute ethyl alcohol, after stirring, is warming up to 50 DEG C of addition dichloros Titanocenes, after stirring 25min, solution is transferred in reactor, argon gas is passed through as protection hermetic seal, in 200 DEG C of reactions 48h, stop reaction, after product is filtered, with distillation water washing, freeze under vacuum, at the beginning of obtaining graphene composite material Product;
B, graphene composite material first product and step(1)In remaining ingredient be placed in mixer, it is 160-170 to control temperature DEG C, mixed on low speed 8-12min, 190-195 DEG C is then heated to, mixed at high speed 8-10min, obtains compound;Compound is put In dryer, drying temperature is 105 DEG C, drying time 2-2.6h, and the stone for improving lithium polymer battery mechanical strength is made Black alkene composite.
Further, the step(1)Selection:Component composition including following parts by weight:The parts by weight of graphene 50, binary The parts by weight of amine POSS 12, the parts by weight of steel alloy 2, the parts by weight of the concentrated sulfuric acid 45, benzene alkene nitrile-parts by weight of St copolymer 7, The parts by weight of bisphenol epoxy 23, the parts by weight of carborundum 5, the parts by weight of sodium nitrate 20, the parts by weight of hydroxyethyl cellulose 6, tetramethyl The parts by weight of ammonium hydroxide 5, the parts by weight of nano-zinc oxide powder 5, the parts by weight of hydrogen sulfide 7, the parts by weight of hydroquinones 3, deionized water 60 parts by weight, 5% parts by weight of hydrogen peroxide 35, the parts by weight of absolute ethyl alcohol 65, the parts by weight of cyclopentadienyl titanium dichloride 11.
Further, the step(1)Described in steel alloy each component mass ratio for iron-carbon alloy 30%, aluminium 10%, copper 35%th, nickel 25%;The mass ratio of the carborundum each component is quartz sand 55%, not petroleum coke 15%, Sang Shi 30%.
Beneficial effects of the present invention:The present invention provides a kind of graphene composite wood for improving lithium polymer battery mechanical strength Material, can effectively improve lithium polymer battery mechanical strength, have excellent superconductivity energy, mechanical property and heat resistance etc. Performance, it will not be weakened using rear ionic conductivity and electrochemical stability for a long time, lithium polymer battery is after a long time use Will not aging, increase life-span of battery charging and discharging.
Embodiment
Describe embodiments of the present invention in detail below with reference to embodiment, whereby to the present invention how application technology hand Section solves technical problem, and the implementation process for reaching technique effect can fully understand and implement according to this.
It should be noted that writing length to save specification, unnecessary repetition and waste are avoided, in the feelings not conflicted Under condition, the feature in embodiment and embodiment in the application can be mutually combined.
A kind of graphene composite material for improving lithium polymer battery mechanical strength of embodiment 1
A kind of graphene composite material for improving lithium polymer battery mechanical strength, include the component composition of following parts by weight:Stone The black parts by weight of alkene 50, the parts by weight of diamine POSS 11, the parts by weight of steel alloy 1, the parts by weight of the concentrated sulfuric acid 35, benzene alkene nitrile-styrene two The parts by weight of membered copolymer 4, the parts by weight of bisphenol epoxy 20, the parts by weight of carborundum 4, the parts by weight of sodium nitrate 15, hydroxy ethyl fiber Plain 4 parts by weight, the parts by weight of TMAH 3, the parts by weight of nano-zinc oxide powder 4, the parts by weight of hydrogen sulfide 5, hydroquinones 1 Parts by weight, the parts by weight of deionized water 55,5% parts by weight of hydrogen peroxide 30, the parts by weight of absolute ethyl alcohol 60, the weight of cyclopentadienyl titanium dichloride 10 Part;Wherein, the steel alloy includes iron-carbon alloy, aluminium, copper and mickel;The carborundum includes quartz sand, petroleum coke and Mo Sangshi.
As the priority scheme of the present invention, step of the invention(1)Described in the mass ratio of steel alloy each component be iron carbon Alloy 30%, aluminium 10%, copper 35%, nickel 25%;The mass ratio of the carborundum each component is quartz sand 55%, petroleum coke 15%, Mo Sang Stone 30%.
A kind of graphene composite material for improving lithium polymer battery mechanical strength of embodiment 2
A kind of graphene composite material for improving lithium polymer battery mechanical strength, include the component composition of following parts by weight:Stone The black parts by weight of alkene 50, the parts by weight of diamine POSS 12, the parts by weight of steel alloy 2, the parts by weight of the concentrated sulfuric acid 45, benzene alkene nitrile-styrene two The parts by weight of membered copolymer 7, the parts by weight of bisphenol epoxy 23, the parts by weight of carborundum 5, the parts by weight of sodium nitrate 20, hydroxy ethyl fiber Plain 6 parts by weight, the parts by weight of TMAH 5, the parts by weight of nano-zinc oxide powder 5, the parts by weight of hydrogen sulfide 7, hydroquinones 3 Parts by weight, the parts by weight of deionized water 60,5% parts by weight of hydrogen peroxide 35, the parts by weight of absolute ethyl alcohol 65, the weight of cyclopentadienyl titanium dichloride 11 Part;Wherein, the steel alloy includes iron-carbon alloy, aluminium, copper and mickel;The carborundum includes quartz sand, petroleum coke and Mo Sangshi.
As the priority scheme of the present invention, step of the invention(1)Described in the mass ratio of steel alloy each component be iron carbon Alloy 30%, aluminium 10%, copper 35%, nickel 25%;The mass ratio of the carborundum each component is quartz sand 55%, petroleum coke 15%, Mo Sang Stone 30%.
A kind of graphene composite material for improving lithium polymer battery mechanical strength of embodiment 3
A kind of graphene composite material for improving lithium polymer battery mechanical strength, include the component composition of following parts by weight:Bag Include the component composition of following parts by weight:The parts by weight of graphene 50, diamine POSS 11-13 parts by weight, steel alloy 1-3 parts by weight, Concentrated sulfuric acid 35-55 parts by weight, benzene alkene nitrile-St copolymer 4-10 parts by weight, bisphenol epoxy 20-26 parts by weight, Carborundum 4-6 parts by weight, sodium nitrate 15-25 parts by weight, hydroxyethyl cellulose 4-8 parts by weight, TMAH 3-7 weight Part, nano-zinc oxide powder 4-6 parts by weight, hydrogen sulfide 5-9 parts by weight, hydroquinones 1-5 parts by weight, deionized water 55-65 weight Measure part, 5% hydrogen peroxide 30-40 parts by weight, absolute ethyl alcohol 60-70 parts by weight, cyclopentadienyl titanium dichloride 10-12 parts by weight;Wherein, institute Stating steel alloy includes iron-carbon alloy, aluminium, copper and mickel;The carborundum includes quartz sand, petroleum coke and Mo Sangshi.
As the priority scheme of the present invention, step of the invention(1)Described in the mass ratio of steel alloy each component be iron carbon Alloy 30%, aluminium 10%, copper 35%, nickel 25%;The mass ratio of the carborundum each component is quartz sand 55%, petroleum coke 15%, Mo Sang Stone 30%.
A kind of graphene composite material for improving lithium polymer battery mechanical strength of embodiment 4
A kind of graphene composite material for improving lithium polymer battery mechanical strength, comprises the following steps:
(1)Selection;
(2)Diamine POSS preparation:Added successively into 500mL three-necked flask 500mL toluene, 75mL deionized waters and 8gTEAOH, magnetic agitation 60min, 15mLAPS and 26mLPTES mixed liquor is then added dropwise, is obtained after being heated to reflux 48h Transparency liquid, continue to heat 50min volatilization toluene, obtain lime milky product, washed with the mixed solution of tetrahydrofuran and methanol Product is washed, is freezed under vacuum condition and obtains product diamine POSS;
(3)The preparation of graphene oxide:A, according to step(1)In each parts by weight of raw materials weigh graphite powder keep bath temperature be 15 DEG C condition of ice bath under add the concentrated sulfuric acid as solvent, be stirred after 30min and be slowly added to sodium nitrate, hydrogen sulfide successively, stir Mix 20min;45 DEG C, stirring reaction 2h are warming up to, 95 DEG C is then heated to and adds deionized water and octaphenyl POSS, stirring 30min, stop reaction, add 5% hydrogen peroxide, centrifuge while hot, respectively with appropriate 5% watery hydrochloric acid and distillation water washing, oxidation is made Graphene first product;
B, by graphene oxide first product made from above-mentioned steps a with and carborundum be stirred, adsorbed, be made oxidation stone Black alkene;
(4)The reduction of graphene oxide:By step(3)After obtained graphene oxide mixes with Nano-Zinc powder, according to heating Speed is that to be heated to temperature be 950 DEG C to 15 DEG C/min, and constant temperature adds TMAH and keeps 24h, the oxygen after being reduced Graphite alkene;
(5)The preparation of graphene composite material:A, by step(4)Graphene oxide graphene oxide and two after obtained reduction It is scattered in after first amine POSS mixing using ultrasonic wave in appropriate absolute ethyl alcohol, after stirring, is warming up to 50 DEG C of addition dichloros Titanocenes, after stirring 25min, solution is transferred in reactor, argon gas is passed through as protection hermetic seal, in 200 DEG C of reactions 48h, stop reaction, after product is filtered, with distillation water washing, freeze under vacuum, at the beginning of obtaining graphene composite material Product;
B, graphene composite material first product and step(1)In remaining ingredient be placed in mixer, control temperature be 160 DEG C, it is low Speed mixing 8min, then heats to 190 DEG C, mixed at high speed 8min, obtains compound;Compound is placed in dryer, dried Temperature is 105 DEG C, drying time 2h, and the graphene composite material for improving lithium polymer battery mechanical strength is made.
As the preferred scheme of the present invention, step of the invention(1)Selection uses the constitutive material of embodiment 1.
As the preferred scheme of the present invention, step of the invention(1)Described in the mass ratio of steel alloy each component be iron carbon Alloy 30%, aluminium 10%, copper 35%, nickel 25%;The mass ratio of the carborundum each component is quartz sand 55%, petroleum coke 15%, Mo Sang Stone 30%.
A kind of graphene composite material for improving lithium polymer battery mechanical strength of embodiment 5
A kind of graphene composite material for improving lithium polymer battery mechanical strength, comprises the following steps:
(1)Selection;
(2)Diamine POSS preparation:Added successively into 500mL three-necked flask 500mL toluene, 75mL deionized waters and 8gTEAOH, magnetic agitation 60min, 15mLAPS and 26mLPTES mixed liquor is then added dropwise, is obtained after being heated to reflux 48h Transparency liquid, continue to heat 50min volatilization toluene, obtain lime milky product, washed with the mixed solution of tetrahydrofuran and methanol Product is washed, is freezed under vacuum condition and obtains product diamine POSS;
(3)The preparation of graphene oxide:A, according to step(1)In each parts by weight of raw materials weigh graphite powder keep bath temperature be 20 DEG C condition of ice bath under add the concentrated sulfuric acid as solvent, be stirred after 35min and be slowly added to sodium nitrate, hydrogen sulfide successively, stir Mix 20-30min;50 DEG C, stirring reaction 2.5h are warming up to, 95 DEG C is then heated to and adds deionized water and octaphenyl POSS, stir 35min is mixed, stops reaction, adds 5% hydrogen peroxide, centrifuges while hot, respectively with appropriate 5% watery hydrochloric acid and distillation water washing, oxygen is made Graphite alkene first product;
B, by graphene oxide first product made from above-mentioned steps a with and carborundum be stirred, adsorbed, be made oxidation stone Black alkene;
(4)The reduction of graphene oxide:By step(3)After obtained graphene oxide mixes with Nano-Zinc powder, according to heating Speed is that to be heated to temperature be 1000 DEG C to 17 DEG C/min, and constant temperature adds TMAH and keeps 25h, after being reduced Graphene oxide;
(5)The preparation of graphene composite material:A, by step(4)Graphene oxide graphene oxide and two after obtained reduction It is scattered in after first amine POSS mixing using ultrasonic wave in appropriate absolute ethyl alcohol, after stirring, is warming up to 50 DEG C of addition dichloros Titanocenes, after stirring 25min, solution is transferred in reactor, argon gas is passed through as protection hermetic seal, in 200 DEG C of reactions 48h, stop reaction, after product is filtered, with distillation water washing, freeze under vacuum, at the beginning of obtaining graphene composite material Product;
B, graphene composite material first product and step(1)In remaining ingredient be placed in mixer, control temperature be 165 DEG C, it is low Speed mixing 10min, then heats to 193 DEG C, mixed at high speed 9min, obtains compound;Compound is placed in dryer, dried Temperature is 105 DEG C, drying time 2.3h, and the graphene composite material for improving lithium polymer battery mechanical strength is made.
As the preferred scheme of the present invention, step of the invention(1)Selection uses the constitutive material of embodiment 1.
As the preferred scheme of the present invention, step of the invention(1)Described in the mass ratio of steel alloy each component be iron carbon Alloy 30%, aluminium 10%, copper 35%, nickel 25%;The mass ratio of the carborundum each component is quartz sand 55%, petroleum coke 15%, Mo Sang Stone 30%.
A kind of graphene composite material for improving lithium polymer battery mechanical strength of embodiment 6
A kind of graphene composite material for improving lithium polymer battery mechanical strength, comprises the following steps:
(1)Selection;
(2)Diamine POSS preparation:Added successively into 500mL three-necked flask 500mL toluene, 75mL deionized waters and 8gTEAOH, magnetic agitation 60min, 15mLAPS and 26mLPTES mixed liquor is then added dropwise, is obtained after being heated to reflux 48h Transparency liquid, continue to heat 50min volatilization toluene, obtain lime milky product, washed with the mixed solution of tetrahydrofuran and methanol Product is washed, is freezed under vacuum condition and obtains product diamine POSS;
(3)The preparation of graphene oxide:A, according to step(1)In each parts by weight of raw materials weigh graphite powder keep bath temperature be The concentrated sulfuric acid is added under 15-25 DEG C of condition of ice bath as solvent, is stirred after 40min and is slowly added to sodium nitrate, vulcanization successively Hydrogen, stir 30min;55 DEG C, stirring reaction 3h are warming up to, 95 DEG C is then heated to and adds deionized water and octaphenyl POSS, stir 40min is mixed, stops reaction, adds 5% hydrogen peroxide, centrifuges while hot, respectively with appropriate 5% watery hydrochloric acid and distillation water washing, oxygen is made Graphite alkene first product;
B, by graphene oxide first product made from above-mentioned steps a with and carborundum be stirred, adsorbed, be made oxidation stone Black alkene;
(4)The reduction of graphene oxide:By step(3)After obtained graphene oxide mixes with Nano-Zinc powder, according to heating Speed is that to be heated to temperature be 1050 DEG C to 20 DEG C/min, and constant temperature adds TMAH and keeps 26h, after being reduced Graphene oxide;
(5)The preparation of graphene composite material:A, by step(4)Graphene oxide graphene oxide and two after obtained reduction It is scattered in after first amine POSS mixing using ultrasonic wave in appropriate absolute ethyl alcohol, after stirring, is warming up to 50 DEG C of addition dichloros Titanocenes, after stirring 25min, solution is transferred in reactor, argon gas is passed through as protection hermetic seal, in 200 DEG C of reactions 48h, stop reaction, after product is filtered, with distillation water washing, freeze under vacuum, at the beginning of obtaining graphene composite material Product;
B, graphene composite material first product and step(1)In remaining ingredient be placed in mixer, control temperature be 170 DEG C, it is low Speed mixing 12min, then heats to 195 DEG C, mixed at high speed 10min, obtains compound;Compound is placed in dryer, dried Dry temperature is 105 DEG C, drying time 2.6h, and the graphene composite material for improving lithium polymer battery mechanical strength is made.
As the preferred scheme of the present invention, step of the invention(1)Selection uses the constitutive material of embodiment 1.
As the preferred scheme of the present invention, step of the invention(1)Described in the mass ratio of steel alloy each component be iron carbon Alloy 30%, aluminium 10%, copper 35%, nickel 25%;The mass ratio of the carborundum each component is quartz sand 55%, petroleum coke 15%, Mo Sang Stone 30%.
All above-mentioned this intellectual properties of primarily implementation, the not this new product of implementation of setting limitation other forms And/or new method.Those skilled in the art will utilize this important information, the above modification, to realize similar execution feelings Condition.But all modifications or transformation belong to the right of reservation based on new product of the present invention.

Claims (3)

1. a kind of graphene composite material for improving lithium polymer battery mechanical strength, it is characterised in that by following steps system It is standby to form:
(1)Selection:Component composition including following parts by weight:The parts by weight of graphene 50, diamine POSS 11-13 parts by weight, close Golden steel 1-3 parts by weight, concentrated sulfuric acid 35-55 parts by weight, benzene alkene nitrile-St copolymer 4-10 parts by weight, bisphenol epoxies tree Fat 20-26 parts by weight, carborundum 4-6 parts by weight, sodium nitrate 15-25 parts by weight, hydroxyethyl cellulose 4-8 parts by weight, tetramethyl Ammonium hydroxide 3-7 parts by weight, nano-zinc oxide powder 4-6 parts by weight, hydrogen sulfide 5-9 parts by weight, hydroquinones 1-5 parts by weight, Deionized water 55-65 parts by weight, 5% hydrogen peroxide 30-40 parts by weight, absolute ethyl alcohol 60-70 parts by weight, cyclopentadienyl titanium dichloride 10-12 Parts by weight;Wherein, the steel alloy includes iron-carbon alloy, aluminium, copper and mickel;The carborundum includes quartz sand, petroleum coke and not Sang Shi;
(2)Diamine POSS preparation:Added successively into 500mL three-necked flask 500mL toluene, 75mL deionized waters and 8gTEAOH, magnetic agitation 60min, 15mLAPS and 26mLPTES mixed liquor is then added dropwise, is obtained after being heated to reflux 48h Transparency liquid, continue to heat 50min volatilization toluene, obtain lime milky product, washed with the mixed solution of tetrahydrofuran and methanol Product is washed, is freezed under vacuum condition and obtains product diamine POSS;
(3)The preparation of graphene oxide:A, according to step(1)In each parts by weight of raw materials weigh graphite powder keep bath temperature be The concentrated sulfuric acid is added under 15-25 DEG C of condition of ice bath as solvent, is stirred after 30-40min and is slowly added to sodium nitrate, sulphur successively Change hydrogen, stir 20-30min;45-55 DEG C, stirring reaction 2-3h is warming up to, 95 DEG C is then heated to and adds deionized water and eight benzene Base POSS, 30-40min is stirred, stop reaction, add 5% hydrogen peroxide, centrifuged while hot, respectively with appropriate 5% watery hydrochloric acid and distilled water Washing, graphene oxide first product is made;
B, by graphene oxide first product made from above-mentioned steps a with and carborundum be stirred, adsorbed, be made oxidation stone Black alkene;
(4)The reduction of graphene oxide:By step(3)After obtained graphene oxide mixes with Nano-Zinc powder, according to heating Speed is that to be heated to temperature be 950-1050 DEG C to 15-20 DEG C/min, and constant temperature adds TMAH and keeps 24-26h, obtains Graphene oxide after to reduction;
(5)The preparation of graphene composite material:A, by step(4)Graphene oxide graphene oxide and two after obtained reduction It is scattered in after first amine POSS mixing using ultrasonic wave in appropriate absolute ethyl alcohol, after stirring, is warming up to 50 DEG C of addition dichloros Titanocenes, after stirring 25min, solution is transferred in reactor, argon gas is passed through as protection hermetic seal, in 200 DEG C of reactions 48h, stop reaction, after product is filtered, with distillation water washing, freeze under vacuum, at the beginning of obtaining graphene composite material Product;
B, graphene composite material first product and step(1)In remaining ingredient be placed in mixer, it is 160-170 to control temperature DEG C, mixed on low speed 8-12min, 190-195 DEG C is then heated to, mixed at high speed 8-10min, obtains compound;Compound is put In dryer, drying temperature is 105 DEG C, drying time 2-2.6h, and the stone for improving lithium polymer battery mechanical strength is made Black alkene composite.
A kind of 2. graphene composite material of raising lithium polymer battery mechanical strength according to right 1, it is characterised in that The step(1)Selection:Component composition including following parts by weight:The parts by weight of graphene 50, the parts by weight of diamine POSS 12, The parts by weight of steel alloy 2, the parts by weight of the concentrated sulfuric acid 45, benzene alkene nitrile-parts by weight of St copolymer 7, the weight of bisphenol epoxy 23 Measure part, the parts by weight of carborundum 5, the parts by weight of sodium nitrate 20, the parts by weight of hydroxyethyl cellulose 6, the parts by weight of TMAH 5, The parts by weight of nano-zinc oxide powder 5, the parts by weight of hydrogen sulfide 7, the parts by weight of hydroquinones 3, the parts by weight of deionized water 60,5% dioxygen The parts by weight of water 35, the parts by weight of absolute ethyl alcohol 65, the parts by weight of cyclopentadienyl titanium dichloride 11.
A kind of 3. graphene composite material of raising lithium polymer battery mechanical strength according to right 1, it is characterised in that The step(1)Described in steel alloy each component mass ratio for iron-carbon alloy 30%, aluminium 10%, copper 35%, nickel 25%;The carbonization The mass ratio of silicon each component is quartz sand 55%, not petroleum coke 15%, Sang Shi 30%.
CN201710799212.4A 2017-09-07 2017-09-07 A kind of graphene composite material for improving lithium polymer battery mechanical strength Pending CN107611392A (en)

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