CN101685876A - Preparation method of polymer battery - Google Patents
Preparation method of polymer battery Download PDFInfo
- Publication number
- CN101685876A CN101685876A CN200810216573A CN200810216573A CN101685876A CN 101685876 A CN101685876 A CN 101685876A CN 200810216573 A CN200810216573 A CN 200810216573A CN 200810216573 A CN200810216573 A CN 200810216573A CN 101685876 A CN101685876 A CN 101685876A
- Authority
- CN
- China
- Prior art keywords
- battery
- polymer battery
- negative pole
- preparation
- electrolyte
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000642 polymer Polymers 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical group O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000005518 polymer electrolyte Substances 0.000 claims abstract description 26
- 239000000178 monomer Substances 0.000 claims abstract description 25
- 239000005486 organic electrolyte Substances 0.000 claims abstract description 25
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical group COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003999 initiator Substances 0.000 claims abstract description 15
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 claims abstract description 12
- JBTWLSYIZRCDFO-UHFFFAOYSA-N ethyl methyl carbonate Chemical compound CCOC(=O)OC JBTWLSYIZRCDFO-UHFFFAOYSA-N 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 40
- 239000010439 graphite Substances 0.000 claims description 30
- 229910002804 graphite Inorganic materials 0.000 claims description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 239000011889 copper foil Substances 0.000 claims description 20
- 239000002904 solvent Substances 0.000 claims description 20
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 19
- -1 Delanium Substances 0.000 claims description 14
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 12
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 12
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 12
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 12
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 12
- 229910013870 LiPF 6 Inorganic materials 0.000 claims description 10
- 239000002033 PVDF binder Substances 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 239000006230 acetylene black Substances 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000005030 aluminium foil Substances 0.000 claims description 10
- 229910003002 lithium salt Inorganic materials 0.000 claims description 10
- 159000000002 lithium salts Chemical class 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims 2
- 238000003860 storage Methods 0.000 abstract description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052744 lithium Inorganic materials 0.000 abstract description 6
- 238000012356 Product development Methods 0.000 abstract 1
- 229910021383 artificial graphite Inorganic materials 0.000 abstract 1
- 125000004386 diacrylate group Chemical group 0.000 abstract 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 229910021382 natural graphite Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 22
- 229910015645 LiMn Inorganic materials 0.000 description 11
- 230000004087 circulation Effects 0.000 description 11
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 8
- 229920007485 Kynar® 761 Polymers 0.000 description 8
- 235000019400 benzoyl peroxide Nutrition 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 210000004027 cell Anatomy 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 210000004508 polar body Anatomy 0.000 description 1
Images
Classifications
-
- 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 a preparation method of a polymer battery in the field of battery product development, which is characterized in that the polymer battery comprises an anode system, a cathodesystem and gel polymer electrolyte, wherein, the anode system adopts lithium manganate, the cathode system adopts natural graphite and/or artificial graphite in a weight ratio of 0-100:100-0, the gelpolymer electrolyte comprises a monomer/an initiator/organic electrolyte in a mass ratio of 1:0.03-0.05:18.6-20.6, the monomer is methyl acrylate/tetraethenol diacrylate in a mass ratio of 1:0.82-1.22, the initiator is a radical initiator, the organic electrolyte is ethylene carbonate/methyl ethyl carbonate/diethyl carbonate in a volume ratio of 1:0.2-1:1.4-3, and the concentration of lithium saltis 1.0-1.3mol/L. The product prepared by the invention can meet the requirements of the battery on capacity and overcharge protection, is excellent in high temperature storage and cyclicity and is widely applied to such electronic equipment as MP3, MP4, portable DVD and the like.
Description
Technical field:
The invention belongs to the technical field of battery product exploitation, be specifically related to a kind of preparation method of polymer battery.
Background technology:
In the prior art, lithium ion battery has the specific energy height, and self discharge is little, memory-less effect, discharge voltage is numerous advantages such as NI-G and Ni-MH battery 3 times, is widely used in mobile phone, notebook computer, electronic instrument, portable power tool, electric bicycle, fields such as weaponry.From early 1990s, with cobalt acid lithium (LiCoO
2) realized commercialization for the secondary lithium battery of positive electrode, but few owing to cobalt (Co) resource, price is high, poisonously limit it and promote the use of.By contrast, LiMn2O4 (LiMn
2O
4Though) exist discharge capacity relatively low, some shortcomings parts such as structure is understable, but its security performance is outstanding, cycle performance is very outstanding, add aboundresources and cheapness, environment almost is safe from harm, and these characteristics all make the mangaic acid lithium electrode be hopeful as positive electrode and then replace cobalt acid lithium, have good DEVELOPMENT PROSPECT.
Summary of the invention:
The objective of the invention is in order to overcome existing LiMn2O4 (LiMn
2O
4) relatively low as the existing discharge capacity of cell positive material, technological deficiency such as structure is understable, a kind of cost is low, reliability is high, self discharge is little, the preparation method of constitutionally stable polymer battery for people provide.
The objective of the invention is to realize by following technical proposals.
The preparation method of polymer battery of the present invention is characterized in that described polymer battery forms by ending polar body system, negative pole system and gel polymer electrolyte, wherein, and anodal system employing LiMn2O4 (LiMn
2O
4); The negative pole system is native graphite and/or Delanium, and the two part by weight scope is a native graphite: Delanium=0～100: 100～0, and preferable part by weight scope is 1: 1～4; Gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.03～0.05: 18.6～20.6, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 0.82～1.22, initator is a radical initiator, organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 0.2～1: 1.4～3, and lithium salt (LiPF
6) be 1.0～1.3mol/L.
In the such scheme, described anodal system is made up of by 100: 2.1～3: 2.1～3 weight ratios LiMn2O4, acetylene black, PVDF (polyvinylidene fluoride).
In the such scheme, described negative pole system by native graphite, Delanium, CMC (carboxymethyl cellulose), SBR (butadiene-styrene rubber) by 0～100: 100～0: 1.5～2.5: 3～5 weight ratios are formed.
In the such scheme, the preparation section of described polymer battery is: prepare anodal system, negative pole system and gel polymer electrolyte respectively by above-mentioned prescription, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, and negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.Barrier film adopts PP/PE/PP (polypropylene, polyethylene/polypropylene) three layers of composite membrane (UBE), the pole piece coiling that branch cuts is packed with aluminum-plastic composite membrane the back well, inject the gel polymer electrolyte that contains monomer, initator and organic electrolyte being full of under the state of nitrogen, hot sealing, then battery is put into 60 ± 1 ℃ vacuum drying oven and stored 6.5～7.0 hours, make polymer battery.
Technical scheme of the present invention is the technical scheme of groping the science practicality of summing up out by inventor's long-term practice, it has overcome, and existing cell positive material adopts cobalt acid lithium to have shortage of resources in the prior art, on the high side, poisonous and employing LiMn2O4 exists discharge capacity relatively low, the understable defective of structure, has Ultra Low Cost, high reliability, discharge capacity is little, many advantages such as Stability Analysis of Structures, it is anodal with the LiMn2O4 that the present invention has developed a kind of, native graphite and Delanium are the new polymer battery system of negative pole, this battery system has not only satisfied battery in cyclicity, the requirement of aspect such as anti-overcharge, (obtained good success aspect storage 7 days and the cyclicity under storage 4h and 60 ± 1 ℃ of conditions under 85 ± 1 ℃ of conditions in high temperature storage especially, this system battery can be successfully applied to MP3, MP4, on the equipment such as portable DVD player and mine lamp, developed a kind of Ultra Low Cost, the polymer battery new product that security performance is given prominence to and had the good circulation performance.
Description of drawings:
Fig. 1 is the cycle performance curve chart of product of the present invention.
Embodiment:
The invention is further illustrated by the following examples, and the present invention is not limited only to described embodiment.
Embodiment one
The preparation method of the polymer battery that this is routine is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4 (LiMn
2O
4); The negative pole system adopts native graphite and Delanium, and the part by weight scope of the two is 1: 1, and gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.03: 18.8, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 0.82, initator is a dibenzoyl peroxide, organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 0.2: 1.55, and lithium salt (LiPF
6) be 1mol/L.
Battery size: 503759P-750mAh.
The preparation section of polymer battery: anode is by LiMn2O4, acetylene black (BP2000, Cabot produces), PVDF (Kynar761, Elf Autochem produces) form by 100: 2.1: 2.2 weight ratios, negative pole is by native graphite, Delanium, CMC (carboxymethyl cellulose), SBR (butadiene-styrene rubber) was by 50: 50: 1.5: 3.5 weight ratios are formed, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, negative current collector is a Copper Foil, with back flow roll formula gap with aluminium, the Copper Foil double spread adopts anodal limited capacity.Barrier film adopts PP/PE/PP (polypropylene, polyethylene/polypropylene) three layers of composite membrane (UBE), the pole piece coiling that branch cuts is packed with aluminum-plastic composite membrane the back well, inject the gel polymer electrolyte that contains monomer, initator and organic electrolyte being full of under the state of nitrogen, hot sealing, then battery is put into 60 ± 1 ℃ vacuum drying oven and stored 6.5～7.0 hours, make polymer battery.
This routine used LiMn2O4 physicochemical property: D50 (particle diameter): 12.6um; Specific area: 0.66m
2/ g; Pole piece compacted density: 2.8g/cm
31C (electric current) capacity performance: 95mA/g; 50 circulations keep: 94.8%;
Delanium: D50 (particle diameter): 20.4um; Specific area: 1.23m
2/ g; Pole piece compacted density: 1.52g/cm
31C (electric current) capacity performance: 290mA/g;
Native graphite: D50 (particle diameter): 18.2um; Specific area: 1.67m
2/ g; Pole piece compacted density: 1.48g/cm
31C (electric current) capacity performance: 330mA/g.
The correlated performance situation of this routine prepared product below underdraws.
One, concrete test experience condition of high-temperature storage performance and process:
Detection scheme one: battery (voltage is 4.2V) under full power state puts it in the vacuum drying oven, vacuumize and oven temperature is transferred to 85 ℃, under this temperature,, take out battery then battery storage 4 hours, measure cell thickness, internal resistance, voltage and residual capacity, it the results are shown in Table 1.
Storage 4h tables of data under the table 185 ℃ condition
Detection scheme two: battery (voltage is 4.2V) under full power state puts it in the vacuum drying oven, vacuumize and oven temperature is transferred to 60 ℃, under this temperature,, take out battery then battery storage 7 days, measure cell thickness, internal resistance, voltage and residual capacity, it the results are shown in Table 2.
Storage 7 day data tables under the table 260 ℃ condition
Two, over-charging experiment condition and process:
At first, battery discharge to 2.75V, is charged to battery with the 3C constant current then, after cell voltage reaches 5V, become constant voltage charge, and it is constant to keep 5V voltage 2 hours by constant current charge.
The result: the battery no leakage, do not smolder, not on fire, do not explode.
Conclusion: over-charging of battery is functional.
Three, cycle performance experiment condition and process:
With blue electro-detection cabinet test battery cycle performance, concrete work step is as follows:
1. constant current (1C) is discharged to 2.75V;
2. constant current (1C) charges to 4.2V;
3. constant voltage (4.2V) charges to electric current and ends less than 10mA;
4. leave standstill 2min;
5. constant current (1C) is discharged to 2.75V;
And then, stop until 300 times from the new circulation of work step 2 beginnings.
Conclusion: 300 average conservation rates of circulation volume: 88.2%.It the results are shown in Table 3.
Concrete cyclic curve as shown in Figure 1.
Table 3300 time loop-around data table
In sum, the battery of the present invention's preparation is a kind of polymer battery of low cost and high reliability.
Embodiment two
The preparation method of the polymer battery that this is routine is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4 (LiMn
2O
4); The negative pole system adopts native graphite and Delanium, and the part by weight scope of the two is 1: 3, and gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.042: 19.8, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 1.12, initator is a dibenzoyl peroxide, organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 0.6: 2.2, and lithium salt (LiPF
6) be 1.15mol/L.
Battery size: 503759P-750mAh.
The preparation section of polymer battery: anode is by LiMn2O4, acetylene black (BP2000, Cabot production), PVDF (Kynar761, Elf Autochem produces) form by 100: 2.5: 2.6 weight ratios, negative pole by native graphite, Delanium, CMC, SBR by 25: 75: 2.1: 4.2 weight ratios are formed, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.All the other are with embodiment one.
The physicochemical property of this routine used LiMn2O4: D50 (particle diameter): 12.4um; Specific area: 0.67m
2/ g; Pole piece compacted density: 2.8g/cm
31C (electric current) capacity performance: 98mA/g; 50 circulations keep: 95.1%;
Delanium: D50 (particle diameter): 20.3um; Specific area: 1.24m
2/ g; Pole piece compacted density: 1.52g/cm
31C (electric current) capacity performance: 300mA/g;
Native graphite: D50 (particle diameter): 17.9um; Specific area: 1.69m
2/ g; Pole piece compacted density: 1.48g/cm
31C (electric current) capacity performance: 340mA/g.
Embodiment three
The preparation method of the polymer battery that this is routine is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4 (LiMn
2O
4); The negative pole system adopts native graphite and Delanium, and the part by weight scope of the two is 1: 2, and gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.038: 19.2, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 1.05, initator is a dibenzoyl peroxide, organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 0.55: 1.4, and lithium salt (LiPF
6) be 1.18mol/L.
Battery size: 503759P-750mAh.
The preparation section of polymer battery: anode is by LiMn2O4, acetylene black (BP2000, Cabot production), PVDF (Kynar761, Elf Autochem produces) form by 100: 3.0: 2.4 weight ratios, negative pole by native graphite, Delanium, CMC, SBR by 33: 66: 2.2: 3 weight ratios are formed, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.All the other are with embodiment one.
The physicochemical property of this routine used LiMn2O4: D50 (particle diameter): 13.02um; Specific area: 0.55m
2/ g; The pole piece compacted density, 2.8g/cm
31C (electric current) capacity performance: 99mA/g; 50 circulations keep: 94.9%;
Delanium: D50 (particle diameter): 20.8um; Specific area: 1.18m
2/ g; Pole piece compacted density: 1.53g/cm
31C (electric current) capacity performance: 285mA/g;
Native graphite: D50 (particle diameter): 17.8um; Specific area: 1.70m
2/ g; Pole piece compacted density: 1.48g/cm
31C (electric current) capacity performance: 350mA/g.
Embodiment four
The preparation method of the polymer battery that this is routine is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4 (LiMn
2O
4); The negative pole system adopts native graphite and Delanium, and the part by weight scope of the two is 1: 3.8, and gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.05: 20.6, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 1.22, initator is a dibenzoyl peroxide, organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 0.65: 2.3, and lithium salt (LiPF
6) be 1.3mol/L.
Battery size: 503759P-750mAh.
The preparation section of polymer battery: anode is by LiMn2O4, acetylene black (BP2000, Cabot production), PVDF (Kynar761, Elf Autochem produces) form by 100: 2.2: 3.0 weight ratios, negative pole by native graphite, Delanium, CMC, SBR by 22: 83.6: 2.5: 5 weight ratios are formed, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.All the other are with embodiment one.
The physicochemical property of this routine used LiMn2O4: D50 (particle diameter): 12.7um; Specific area: 0.65m
2/ g; Pole piece compacted density: 2.8g/cm
31C (electric current) capacity performance: 97mA/g; 50 circulations keep: 94.3%;
Delanium: D50 (particle diameter): 20.5um; Specific area: 1.21m
2/ g; Pole piece compacted density: 1.51g/cm
31C (electric current) capacity performance: 290mA/g;
Native graphite: D50 (particle diameter): 18.1um; Specific area: 1.68m
2/ g; Pole piece compacted density: 1.48g/cm
31C (electric current) capacity performance: 335mA/g.
Embodiment five
The preparation method of the polymer battery that this is routine is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4 (LiMn
2O
4); The negative pole system adopts native graphite and Delanium, and the part by weight scope of the two is 47: 3, and gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.041: 19.5, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 1, and initator is a dibenzoyl peroxide, and organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 0.5: 2.2, and lithium salt (LiPF
6) be 1.26mol/L.
Battery size: 503759P-750mAh.
The preparation section of polymer battery: anode is by LiMn2O4, acetylene black (BP2000, Cabot production), PVDF (Kynar761, ElfAutochem produces) form by 100: 2.2: 2.1 weight ratios, negative pole by native graphite, Delanium, CMC, SBR by 94: 6: 2.0: 4.2 weight ratios are formed, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.All the other are with embodiment one.
The physicochemical property of this routine used LiMn2O4: D50 (particle diameter): 12.5um; Specific area: 0.68m
2/ g; Pole piece compacted density: 2.8g/cm
31C (electric current) capacity performance: 98mA/g; 50 circulations keep: 94.9%;
Delanium: D50 (particle diameter): 20.2um; Specific area: 1.26m
2/ g; Pole piece compacted density: 1.50g/cm
31C (electric current) capacity performance: 280mA/g;
Native graphite: D50 (particle diameter): 17.8um; Specific area: 1.7m
2/ g; Pole piece compacted density: 1.48g/cm
31C (electric current) capacity performance: 340mA/g.
Embodiment six
The preparation method of the polymer battery that this is routine is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4 (LiMn
2O
4); The negative pole system adopts native graphite and Delanium, and the part by weight scope of the two is 3: 47; Gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.038: 18.6, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 1.2, initator is a dibenzoyl peroxide, organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 0.58: 3.0, and lithium salt (LiPF
6) be 1.22mol/L.
Battery size: 503759P-750mAh.
The preparation section of polymer battery: anode is by LiMn2O4, acetylene black (BP2000, Cabot production), PVDF (Kynar761, Elf Autochem produces) form by 100: 2.3: 2.5 weight ratios, negative pole by native graphite, Delanium, CMC, SBR by 6: 94: 2.2: 4.0 weight ratios are formed, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.All the other are with embodiment one.
The physicochemical property of this routine used LiMn2O4: D50 (particle diameter): 12.2um; Specific area: 0.73m
2/ g; Pole piece compacted density: 2.8g/cm
31C (electric current) capacity performance: 96mA/g; 50 circulations keep: 94.2%;
Delanium: D50 (particle diameter): 20.3um; Specific area: 1.24m
2/ g; Pole piece compacted density: 1.51g/cm
31C (electric current) capacity performance: 290mA/g.
Native graphite: D50 (particle diameter): 18.1um; Specific area: 1.66m
2/ g; Pole piece compacted density: 1.48g/cm
31C (electric current) capacity performance: 330mA/g.
Embodiment seven
The preparation method of the polymer battery that this is routine is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4 (LiMn
2O
4); The negative pole system adopts Delanium, and promptly the consumption of native graphite is 0, and gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.045: 19.8, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 1.14, initator is a dibenzoyl peroxide, organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 1: 2.1, and lithium salt (LiPF
6) be 1.18mol/L.
Battery size: 503759P-750mAh.
The preparation section of polymer battery: anode is by LiMn2O4, acetylene black (BP2000, Cabot production), PVDF (Kynar761, Elf Autochem produces) form by 100: 2.5: 2.6 weight ratios, negative pole is made up of by 100: 2.3: 4.5 weight ratios Delanium, CMC, SBR, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.All the other are with embodiment one.
The physicochemical property of this routine used LiMn2O4: D50 (particle diameter): 12.9um; Specific area: 0.64m
2/ g; Pole piece compacted density: 2.8g/cm
31C (electric current) capacity performance: 99mA/g; 50 circulations keep: 94.5%;
Delanium: D50 (particle diameter): 19.9um; Specific area: 1.29m
2/ g; Pole piece compacted density: 1.51g/cm
31C (electric current) capacity performance: 295mA/g.
Embodiment eight
The preparation method of the polymer battery that this is routine is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4 (LiMn
2O
4); The negative pole system adopts native graphite, and promptly the consumption of Delanium is 0, and gel polymer electrolyte is monomers/initiator/organic electrolyte, and its mass ratio is 1: 0.042: 19.8, and monomer is methyl acrylate (CH
2=CH-COO CH
2)/tetrem enol diacrylate, its mass ratio is 1: 1.12, initator is a dibenzoyl peroxide, organic electrolyte is EC (ethylene carbonate)/EMC (methyl ethyl carbonate fat)/DEC (carbonic acid diethyl ester), its volume ratio scope is: EC: EMC: DEC=1: 0.6: 2.2, and lithium salt (LiPF
6) be 1.15mol/L.
Battery size: 503759P-750mAh.
The preparation section of polymer battery: anode is by LiMn2O4, acetylene black (BP2000, Cabot production), PVDF (Kynar761, Elf Autochem produces) form by 100: 2.5: 2.6 weight ratios, negative pole is made up of by 100: 2.1: 4.2 weight ratios native graphite, CMC, SBR, positive pole is made solvent with N-methyl pyrrolidone (NMP), negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.All the other are with embodiment one.
The physicochemical property of this routine used LiMn2O4: D50 (particle diameter): 12.6um; Specific area: 0.62m
2/ g; Pole piece compacted density: 2.8g/cm
31C (electric current) capacity performance: 97mA/g; 50 circulations keep: 95.2%;
Native graphite: D50 (particle diameter): 17.6um; Specific area: 1.72m
2/ g; Pole piece compacted density: 1.48g/cm
31C (electric current) capacity performance: 340mA/g.
Description of test negative pole system single with in native graphite or the Delanium any one all can, but the two uses with and can reduce cost, and can guarantee the capacity performance of negative pole simultaneously, better effects if, degree of graphitization is higher.
Claims (4)
1. the preparation method of a polymer battery is characterized in that described polymer battery is made up of anodal system, negative pole system and gel polymer electrolyte, and wherein, anodal system adopts LiMn2O4; The negative pole system is native graphite and/or Delanium, and the two part by weight scope is a native graphite: Delanium=0～100: 100～0; Gel polymer electrolyte is monomers/initiator/organic electrolyte, its mass ratio is 1: 0.03～0.05: 18.6～20.6, monomer is methyl acrylate/tetrem enol diacrylate, its mass ratio is 1: 0.82～1.22, initator is a radical initiator, organic electrolyte is ethylene carbonate/methyl ethyl carbonate fat/carbonic acid diethyl ester, and its volume ratio scope is: ethylene carbonate: methyl ethyl carbonate fat: carbonic acid diethyl ester=1: 0.2～1: 1.4～3, lithium salts LiPF
6Concentration is 1.0～1.3mol/L.
2. the preparation method of polymer battery according to claim 1 is characterized in that described anodal system is made up of by 100: 2.1～3: 2.1～3 weight ratios LiMn2O4, acetylene black, polyvinylidene fluoride.
3. the preparation method of polymer battery according to claim 1, it is characterized in that described negative pole system by native graphite, Delanium, carboxymethyl cellulose, butadiene-styrene rubber by 0～100: 100～0: 1.5～2.5: 3～5 weight ratios are formed.
4. according to the preparation method of claim 1,2 or 3 described polymer batteries, the preparation section that it is characterized in that described polymer battery is: prepare anodal system, negative pole system and gel polymer electrolyte respectively by prescription, positive pole is made solvent with the N-methyl pyrrolidone, negative pole is with water as solvent, make positive pole and cathode size respectively, plus plate current-collecting body is an aluminium foil, and negative current collector is a Copper Foil, with aluminium, Copper Foil double spread, adopt anodal limited capacity with back flow roll formula gap.Barrier film adopts three layers of composite membrane of polypropylene, polyethylene/polypropylene, the pole piece coiling that branch cuts is packed with aluminum-plastic composite membrane the back well, inject the gel polymer electrolyte that contains monomer, initator and organic electrolyte being full of under the state of nitrogen, hot sealing, then battery is put into 60 ± 1 ℃ vacuum drying oven and stored 6.5～7.0 hours, make polymer battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102165732A CN101685876B (en) | 2008-09-27 | 2008-09-27 | Preparation method of polymer battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102165732A CN101685876B (en) | 2008-09-27 | 2008-09-27 | Preparation method of polymer battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101685876A true CN101685876A (en) | 2010-03-31 |
| CN101685876B CN101685876B (en) | 2013-06-26 |
Family
ID=42048914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102165732A Active CN101685876B (en) | 2008-09-27 | 2008-09-27 | Preparation method of polymer battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101685876B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285330A (en) * | 2013-01-28 | 2015-01-14 | 株式会社Lg化学 | Lithium secondary battery |
| CN104538582A (en) * | 2014-11-30 | 2015-04-22 | 王干 | Copper-based grapehne polymer lithium battery negative electrode structure and production method thereof |
| US9882239B2 (en) | 2013-01-28 | 2018-01-30 | Lg Chem, Ltd. | Composition for gel polymer electrolyte and lithium secondary battery including the same |
| US10297860B2 (en) | 2013-01-28 | 2019-05-21 | Lg Chem, Ltd. | Lithium secondary battery |
| CN114824618A (en) * | 2021-01-18 | 2022-07-29 | 湖南庆胜新能源科技有限公司 | Lithium battery and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1142613C (en) * | 2000-03-30 | 2004-03-17 | 中国科学院物理研究所 | Secondary Li ion battery using colloidal polymer as electrolyte and its preparing process |
| CN100444454C (en) * | 2004-04-12 | 2008-12-17 | 黄穗阳 | Design and production of colloidal polymer lithium ion cell |
| JP4743747B2 (en) * | 2004-12-08 | 2011-08-10 | 日立マクセル株式会社 | Separator, manufacturing method thereof, and nonaqueous electrolyte battery |
-
2008
- 2008-09-27 CN CN2008102165732A patent/CN101685876B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285330A (en) * | 2013-01-28 | 2015-01-14 | 株式会社Lg化学 | Lithium secondary battery |
| US9882239B2 (en) | 2013-01-28 | 2018-01-30 | Lg Chem, Ltd. | Composition for gel polymer electrolyte and lithium secondary battery including the same |
| US10297860B2 (en) | 2013-01-28 | 2019-05-21 | Lg Chem, Ltd. | Lithium secondary battery |
| CN104538582A (en) * | 2014-11-30 | 2015-04-22 | 王干 | Copper-based grapehne polymer lithium battery negative electrode structure and production method thereof |
| CN114824618A (en) * | 2021-01-18 | 2022-07-29 | 湖南庆胜新能源科技有限公司 | Lithium battery and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101685876B (en) | 2013-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101685878B (en) | Preparation method of polymer lithium ion battery | |
| WO2020177623A1 (en) | Negative pole piece, secondary battery and apparatus thereof | |
| CN103855360B (en) | Lithium ion battery and cathode pole piece thereof and preparation method | |
| CN104681797B (en) | A kind of preparation method of silicon-carbon composite cathode electrode, lithium ion battery | |
| CN103050290B (en) | Combining super capacitor device in a kind of | |
| CN103050295B (en) | A kind of lithium-ion capacitor | |
| CN105845928A (en) | Lithium-ion power battery and preparation method thereof | |
| WO2016115909A1 (en) | High compaction density negative electrode lithium ion battery and electrolyte | |
| CN105914394B (en) | A kind of low-temperature lithium ion battery composite positive pole, low-temperature lithium ion battery anode pole piece and preparation method thereof, lithium ion battery | |
| CN104916825A (en) | Preparation method of lithium battery high-voltage modified cathode material | |
| CN103427068B (en) | A kind of positive electrode and preparation method thereof for lithium-sulfur cell | |
| CN101685883A (en) | Polymer lithium ion battery and preparation method thereof | |
| CN101685876B (en) | Preparation method of polymer battery | |
| CN103682415A (en) | High-energy-density lithium ion battery and preparation technology thereof | |
| WO2018059180A1 (en) | High-power, high-energy chemical power supply and preparation method therefor | |
| CN109088033A (en) | Macrocyclic 18650 lithium battery of ferric phosphate lithium type of high safety high-energy and preparation method thereof | |
| CN104577191A (en) | Polymer lithium-ion battery and preparation method thereof | |
| CN111540877A (en) | Electrode pole piece, preparation method thereof and secondary battery | |
| CN103682454A (en) | Preparation method of lithium ion battery adopting lithium titanate cathode | |
| US20220059867A1 (en) | Secondary battery and device including the same | |
| CN105390295A (en) | Lithium-ion capacitor, and negative material and negative electrode plate thereof | |
| CN102637848B (en) | A kind of preparation method of electrodes of lithium-ion batteries | |
| CN101685879B (en) | Preparation method of lithium ion battery | |
| CN113948757A (en) | Polymer lithium ion battery and manufacturing method thereof | |
| CN102214839A (en) | Liquid-state soft package lithium battery and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160928 Address after: An Zhen Zhongmu County 451470 Henan city of Zhengzhou Province Liu Zheng Qiao Village Patentee after: ZHENGZHOU BAK BATTERY Co.,Ltd. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: SHENZHEN BAK BATTERY Co.,Ltd. |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20191022 Granted publication date: 20130626 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20221022 Granted publication date: 20130626 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20221022 Granted publication date: 20130626 |