CN101901932A - Quick-chargeable, high-security and high-multiplying-power battery and production method thereof - Google Patents
Quick-chargeable, high-security and high-multiplying-power battery and production method thereof Download PDFInfo
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Abstract
The invention discloses a quick-chargeable, high-security and high-multiplying-power battery which is capable of charging with large multiplying power, discharging with high multiplying power and simple in production process as well as a production method thereof. The battery respectively comprises an anode material formed by the following components in percentage by weight: 85 to 95 percent of anode active materials, 0.5 to 5 percent of conductive agent, 0.2 to 2 percent of dispersing agent and 2 to 4 percent of adhesive; and a cathode material formed by the following components in percentage by weight: 90 to 95 percent of cathode active materials, 0.1 to 3 percent of conductive agent, 0.1 to 1.5 percent of dispersing agent and 2 to 4 percent of adhesive. The production method comprises the following step of: respectively mixing the anode active materials, the cathode active materials, the conductive agent, the dispersing agent and the adhesive with dry powder in the production process of anode slurry and cathode slurry.
Description
Technical field: the present invention relates to a kind of battery, relate in particular to a kind of quick-chargeable, high-security high-multiplying-power battery and preparation method thereof.
Background technology: current, the lithium ion battery industry development is rapid, along with the development of electronic product, lithium ion battery is also had higher requirement, and will consider especially that it is frivolous, heavy-current discharge and security performance.Model plane, toy, Wireless Power Tools market show the vigorous growth impetus, need the lithium ion battery that the charging interval is shorter, discharging current is bigger, security performance is higher, and many compact electric apparatus also requirement can high-multiplying power discharge.
The method that at present also has some relatively better to prepare high-multiplying-power battery is 1819321 Chinese patent application as publication number, discloses a kind of high multiplying power lithium ion battery.The high-multiplying-power battery that uses the method to make can reach 12～15C discharge, but to can fill soon and security requirement all not mentioned.And for example publication number is 101106186 Chinese patent application, a kind of high multiplying power lithium ion battery is disclosed, though the high-multiplying-power battery that uses its method to make removes the temperature when having reduced heavy-current discharge, improved high rate performance and cycle performance, but also not mentioned to overcharging safety with big electric current quick charge.
Summary of the invention: the present invention seeks to the problem at the prior art existence, a kind of quick-chargeable, high-security high-multiplying-power battery and preparation method thereof is provided, this battery is multiplying power quick charge, high-multiplying power discharge greatly, and high security.This manufacture method technology is simple, easy operating.
Technical scheme of the present invention comprises positive and negative electrode collector, electric core, electrolyte, the positive and negative electrode slurry, described anode sizing agent comprises being respectively that 85%～95% positive active material, 0.5%～5% conductive agent, 0.2%～2% dispersant and 2%～4% binding agent constitute by weight ratio, and described cathode size comprises being respectively that 90～95% negative electrode active material, 0.1%～3% conductive agent, 0.1%～1.5% dispersant, 2%～4% binding agent constitute by weight ratio.
Described positive active material comprises that following one or more one-tenth are grouped into: respectively through the pressure resistant type cobalt of metal-doped modification acid lithium, LiMn2O4, nickel LiMn2O4 and nickle cobalt lithium manganate; Described negative electrode active material comprises one or more compositions in the following composition: natural modified graphite, common Delanium, carbonaceous mesophase spherules and/or lithium titanate;
Described positive and negative electrode conductive agent comprises one or more compositions in the following composition respectively: acetylene black, superconduction carbon ink, nano-sized carbon, CNT (carbon nano-tube), nano silicon and nano aluminium oxide;
Described positive and negative electrode dispersant is respectively the nonionic organic surface active agent;
Described positive and negative electrode binding agent is respectively molecular weight at the high polymer more than 1,000,000;
Described electrolyte comprises lithium salts lithium hexafluoro phosphate and/or two oxalic acid borate lithium and following solvent composition below two kinds or two kinds: ethylene carbonate, vinylene carbonate, methyl ethyl carbonate, diethyl carbonate and propene carbonate.
Described positive and negative electrode dispersant comprises one or more compositions in the following composition respectively: sodium carboxymethylcellulose, ethylacrylic acid methyl esters and methyl methacrylate;
Described positive and negative electrode binding agent is respectively butadiene-styrene rubber and/or Kynoar;
Described electrolyte comprise 1.2mol/L lithium hexafluoro phosphate, form with the mixed liquid of the solvent of following volume ratio: ethyl carbonate ester: diethyl carbonate: the first and second basic carbonic esters: inferior vinyl carbonate: cyclohexyl benzene=1: 1: 1: 0.2: 0.05.
Described electrolyte also comprises the additive of one or both compositions in the following composition: 1, and 3-propane sultone, cyclohexyl benzene and biphenyl.
Described positive and negative electrode collector is three-dimensional collector, two-dimentional collector or metal tape; Described electric core is multipole ear winding formula or the lamination type electric core that comprises that positive and negative plate constitutes.
The thickness of described plus plate current-collecting body is 18～30 μ m, and the thickness of negative current collector is 10～18 μ m; Described multipole ear winding formula or lamination type electric core, its positive pole ear is connected and composed by an end that is positioned at electric core, each tongue piece of being connected in an end of each positive plate that constitutes electric core, and negative lug is connected and composed by each tongue piece other end that is positioned at electric core, that be connected in an end of each negative plate that constitutes electric core.
The manufacture method of battery of the present invention comprises the making of positive and negative electrode slurry and the making of electric core, it is characterized in that when the making of positive and negative electrode slurry, positive and negative electrode active material, conductive agent, dispersant and binding agent all mix with dry powder, slurry was all crossed colloid mill and is fully disperseed, grind and spare before coating, and mixed up viscosity; The coiling of described electric core is made and is adopted multipole ear winding or packed lamination to make.
The making of described positive and negative electrode slurry: each composition that at first will constitute anode sizing agent is done following processing: active material, conductive agent, dispersant and binding agent toast respectively by desired baking temperature of technology and time and make dry powder;
Then active material, conductive agent and the dispersant dry powder of making is carried out dispersion treatment under inert gas shielding and make the dry powder batch mixing;
Binding agent dry powder and the solvent made are made lysate through the stirring of certain hour, the more above-mentioned dry powder batch mixing of making is joined to stir in this lysate of making and make needed, as to reach certain viscosity slurry;
The above-mentioned slurry of making is crossed the colloid mill several times;
The making of described cathode size: when cathode size was made, the making of its lysate was that dispersant dry powder is joined among the pure water after certain hour stirs, and added binding agent dry powder then and stirred certain hour again and make; The making of all the other technologies, step and method and anode sizing agent roughly the same;
Each the composition deal that constitutes the positive and negative electrode slurry is carried out proportioning by technological requirement; The viscosity of negative or positive electrode slurry is regulated by interpolation acetone or pure water when slurry is crossed colloid mill.
When described dry powder was made, the baking temperature of active material and conductive agent, time is 120-150 ℃, 2-5h respectively, and the baking temperature of dispersant and binding agent, time is 60-120 ℃, 1-3h respectively; Mixing time when binding agent dry powder and solvent are made lysate is 2～3h; Mixing speed when described dry powder batch mixing and lysate are made slurry is 2000-3000 rev/min, and slurry is crossed colloid mill No. 3 times, and the viscosity of the slurry of making is 8000-12000Pa.s;
When the dry powder of described cathode size was made, the baking temperature of active material and conductive agent, time is 150-250 ℃, 3-6h respectively, and the baking temperature of dispersant and binding agent, time is 80-100 ℃, 1-3h respectively; When using dispersant to make lysate, the mixing time that joins among the pure water is 0.5～2.5h, and the mixing time that adds binding agent is 0.2～1.5h; Mixing speed when dry powder batch mixing and lysate are made slurry is 2000-3000 rev/min, and slurry is crossed colloid mill No. 3 times, and the viscosity of the slurry of making is 3000-6000Pa.s.
The making of described electric core comprises the making of multipole ear winding formula and/or lamination type electric core:
The making of multipole ear winding formula electricity core: positive plate, barrier film, negative plate are made duplexer with an end of the one section uncoated slurry in end separately of positive and negative plate part opposed mutually, coating sizing-agent the stacked above one another that overlaps, this duplexer of reeling is made pellet, positive pole ear is made at this end formation tongue piece of each positive plate in the angle part, both sides at the position of each the one section uncoated slurry in positive plate end after one end of die-cut pellet is reeled; The use the same method angle part, both sides at position of uncoated slurry of each negative plate of the other end of die-cut pellet forms tongue piece and makes negative lug, thereby pellet is made electric core;
The making of lamination type electric core: some positive and negative plates and barrier film overlapped with the part of coating sizing-agent by the order of positive plate, barrier film, negative plate to be laminated to the needed number of plies repeatedly and to make pellet; Re-use the electric core that the manufacture method of above-mentioned multipole ear winding formula electricity core is made pellet.
Battery quick-chargeable, high-security high-multiplying-power battery of the present invention, its battery performance rises to fast charging current (6C) by common charging current (1C), battery rises to ultra-high magnifications (20-30C) discharge by common multiplying power (1-5C), it is not on fire that the over-charging of battery rises to high safety (3C/10V) by common safety (1C/4.8V), not explode. manufacture method technology of the present invention is simple, easy operating.
The present invention has following advantage:
1. only need 12 minutes but the big multiplying power quick charge of battery 4C of the present invention, 6C, battery are full of the electricity shortest time, high-multiplying power discharge capacity release rate is up to 98% after the 4C quick charge, and high-multiplying power discharge capacity release rate is up to 94% after the 6C quick charge;
2. battery of the present invention can 20C～30C high-multiplying power discharge, and 30C/1C discharge capacity ratio reaches more than 85%;
3. battery of the present invention can overcharge safety test by 3C/10V, does not on firely explode.
Description of drawings Fig. 1 is the multipole ear winding formula core strueture schematic diagram of battery of the present invention.Fig. 2 is the lamination type electric core structural representation of battery of the present invention.Fig. 3 is the 25C discharge curve of battery of the present invention.Fig. 4 is that the 6C of battery of the present invention fills the 25C discharge curve, and m is the 6C charging curve among the figure, and n is the 25C discharge curve.Fig. 5 is that the 3C/10V of battery of the present invention overcharges curve chart, and wherein o is a temperature curve, the p voltage curve.
Embodiment is now by embodiment and in conjunction with the accompanying drawings to battery of the present invention and the explanation of corresponding manufacture method detail.
With 100～3000mAh high multiplying power lithium ion battery is that example is illustrated, its corresponding charge and discharge and overcharge curve shown in Fig. 4,5.Positive active material cobalt acid lithium, LiMn2O4, nickel LiMn2O4 and/or the nickle cobalt lithium manganate that each embodiment relates to is the pressure resistant type active material through metal-doped modification.
Example 1
The making of positive plate
Each weight ratio of constituents example of anode sizing agent is: nickel LiMn2O4: superconduction carbon black: ethylacrylic acid methyl esters: Kynoar: acetone=92: 4: 1: 3: 100.At first nickel LiMn2O4, superconduction carbon black are carried out 150 ℃ of high-temperature baking 4h, ethylacrylic acid methyl esters, Kynoar are carried out 90 ℃ of high-temperature baking 2h, make dry powder respectively.Then baked nickel LiMn2O4, superconduction carbon black, dispersant are carried out dispersion treatment under inert gas shielding, conductive agent and dispersant are dispersed in the surface of nickel LiMn2O4, make the dry powder batch mixing.Kynoar dry powder is joined among the acetone, and middling speed stirs 2～3h, fully dissolving.Again scattered dry powder batch mixing is joined in the lysate of above-mentioned Kynoar and acetone, put with in the homogenizer with 2500 rev/mins speed high-speed stirred until the slurry that forms homogeneous, stable, good fluidity, slurry is crossed colloid mill No. 3 times, and reaches 9000Pa.s by the viscosity that the amount of adding acetone is regulated slurry.Prepared slurry is coated on the aluminium foil of 20 μ m at last, and through cutting, cross oven dry bridge, roll-in, finishes the making of positive plate after die-cut.
The making of negative plate
The weight ratio of each composition of cathode size is: lithium titanate: nano-sized carbon: sodium carboxymethylcellulose: butadiene-styrene rubber: pure water=95: 1: 1.5: 2.5: 160.At first lithium titanate and nano-sized carbon are carried out 200 ℃ of high-temperature baking 4h respectively, sodium carboxymethylcellulose is carried out 80 ℃ of high-temperature baking 2h.Then baked lithium titanate, nano-sized carbon are carried out dispersion treatment under inert gas shielding, nano-sized carbon is dispersed in the surface of lithium titanate, make the dry powder batch mixing.Sodium carboxymethylcellulose dry powder is joined among the pure water, and middling speed stirs 1～2h, adds butadiene-styrene rubber then, and middling speed stirs 0.5～1h, fully dissolving.Again scattered dry powder batch mixing is joined in the lysate of above-mentioned sodium carboxymethylcellulose and butadiene-styrene rubber, put with in the homogenizer with 2500 rev/mins speed high-speed stirred until the slurry that forms homogeneous, stable, good fluidity, slurry is crossed colloid mill No. 3 times, and reaches 4000Pa.s by the viscosity that the amount of adding pure water is regulated slurry.Prepared slurry is coated on the aluminium foil or Copper Foil of 20 μ m at last, and through cutting, cross oven dry bridge, roll-in, finishes the making of negative plate after die-cut.
With die-cut good positive and negative plate and membrane coil around or the electric core of stacked making.
The preparation of electrolyte
Lithium salts is the lithium hexafluoro phosphate of 1.2mol/L, solvent is that volume ratio is: ethyl carbonate ester (EC): diethyl carbonate (DEC): the first and second basic carbonic esters (EMC): inferior vinyl carbonate (VC): cyclohexyl benzene (CHB)=1: 1: 1: 0.2: 0.05 mixed liquor stirs with magnetic stirring apparatus.
The making of electricity core
Multipole ear winding formula electricity core as shown in Figure 1.Its positive pole ear 3 is connected and composed by an end that is positioned at electric core, each tongue piece 2 of being connected in an end of each positive plate 1 behind the coiling that constitutes electric core, corresponding negative lug 6 is by the other end that is positioned at electric core, and each tongue piece that is connected in an end of each negative plate behind the coiling that constitutes electric core connects and composes.
The manufacture method of multipole ear winding formula electricity core: positive plate, barrier film, negative plate are made duplexer with the end part opposed mutually, coating sizing-agent of an end of the one section uncoated slurry in end of positive plate and the one section uncoated slurry in end of the negative plate stacked above one another that overlaps, adopt square to roll up pin this duplexer of reeling and make the square pellet; The angle part, both sides at the position of each the one section uncoated slurry in positive plate 1 end after one end of die-cut coring piece is reeled forms the square tongue piece 2 of center line 7 that protrudes outward, left and right sides direction is symmetrical in the direction of both ends of pellet at this end of each positive plate 1 and makes positive pole ear 3; The use the same method angle part, both sides at position of uncoated slurry of each negative plate of the other end of die-cut pellet forms with the symmetrical square tongue piece of positive pole ear 3 and makes negative lug 6, thereby pellet is made electric core.
Lamination type electric core as shown in Figure 2.Positive pole ear 13 by an end that is positioned at electric core, each tongue piece 12 of being connected in this end that constitutes each positive plate 11 behind electric core stacked connects and composes, corresponding negative lug 16 by the other end that is positioned at electric core, each tongue piece of being connected in this end that constitutes each negative plate behind electric core stacked connects and composes.
The manufacture method of lamination type electric core: some positive and negative plates and barrier film overlapped with the part of coating sizing-agent by the order of positive plate, barrier film, negative plate to be laminated to the needed number of plies repeatedly and to make pellet; Use that the manufacture method of above-mentioned multipole ear winding formula electricity core is die-cut makes positive and negative lug, thereby pellet is made electric core.
A kind of the encapsulation with packaging film in the electric core of above-mentioned two kinds of structures making injected electrolyte, after bleeding, changing into, make battery.
Positive and negative plate is the positive and negative plate that said method is made.
Example 2
The making of positive plate
Each weight ratio of constituents example of anode sizing agent is: cobalt acid lithium: nano-sized carbon: ethylacrylic acid methyl esters: Kynoar: acetone=94: 3: 1: 2: 120.At first nickel LiMn2O4, superconduction carbon black are carried out 150 ℃ of high-temperature baking 4h, ethylacrylic acid methyl esters, Kynoar are carried out 90 ℃ of high-temperature baking 2h, make dry powder respectively.Then baked cobalt acid lithium, nano-sized carbon, ethylacrylic acid methyl esters are carried out dispersion treatment under inert gas shielding, nano-sized carbon, ethylacrylic acid methyl esters are dispersed in the surface of cobalt acid lithium, make the dry powder batch mixing.Kynoar dry powder is joined among the acetone, and middling speed stirs 2～3h, fully dissolving.Again scattered batch mixing is joined in the lysate of above-mentioned Kynoar and acetone, put with in the homogenizer with 2500 rev/mins speed high-speed stirred until the slurry that forms homogeneous, stable, good fluidity, slurry is crossed colloid mill No. 3 times, and reaches 9000Pa.s by the viscosity that the amount of adding acetone is regulated slurry.Prepared slurry is coated on the aluminium foil of 20 μ m at last, and through cutting, cross oven dry bridge, roll-in, finishes the making of positive plate after die-cut.
The making of negative plate
This implements employed material ratio: carbonaceous mesophase spherules: superconduction carbon black: sodium carboxymethylcellulose: butadiene-styrene rubber: pure water=95: 1: 1.5: 2.5: 160.At first carbonaceous mesophase spherules, superconduction carbon black are carried out 150 ℃ of high-temperature baking 4h, sodium carboxymethylcellulose is carried out 80 ℃ of high-temperature baking 2h, make dry powder respectively; Then baked carbonaceous mesophase spherules is carried out dispersion treatment under inert gas shielding, the superconduction carbon ink is dispersed in the surface of carbonaceous mesophase spherules, make the dry powder batch mixing.Sodium carboxymethylcellulose dry powder is joined among the pure water, and middling speed stirs 1～2h, adds butadiene-styrene rubber then, and middling speed stirs 0.5～1h, fully dissolving.Again scattered dry powder batch mixing is joined in the lysate of above-mentioned sodium carboxymethylcellulose and butadiene-styrene rubber, put with in the homogenizer with 2500 rev/mins speed high-speed stirred until the slurry that forms homogeneous, stable, good fluidity, slurry is crossed colloid mill No. 3 times, and reaches 4000Pa.s by the viscosity that the amount of adding pure water is regulated slurry.Prepared slurry is coated on the Copper Foil of 12 μ m at last, and through cutting, cross oven dry bridge, roll-in, finishes the making of negative plate after die-cut.
All the other dependency structure compositions and technology, method and the step of battery can be analogous to example 1.
Embodiment 3
Positive and negative plate is made with example 2.
The preparation of electrolyte
Lithium salts is the lithium hexafluoro phosphate of 1.5mol/L, solvent is that volume ratio is ethyl carbonate ester (EC): dimethyl carbonate (DMC): the first and second basic carbonic esters (EMC): propylene carbonate (PC): biphenyl (LB)=1: 1: 1: 0.2: 0.05 mixed liquid stirs with magnetic stirring apparatus.
All the other dependency structure compositions and technology, method and the step of battery can be analogous to example 1 or 2.
Example 4
The making of positive plate
Each weight ratio of constituents example of anode sizing agent is: cobalt acid lithium: nano aluminium oxide: ethylacrylic acid methyl esters: Kynoar: acetone=92: 4: 1: 2: 120.At first cobalt acid lithium, nano aluminium oxide are carried out 150 ℃ of high-temperature baking 4h, ethylacrylic acid methyl esters, Kynoar are carried out 90 ℃ of high-temperature baking 2h, make dry powder respectively.Then baked cobalt acid lithium, nano-sized carbon, ethylacrylic acid methyl esters are carried out dispersion treatment under inert gas shielding, nano-sized carbon, ethylacrylic acid methyl esters are dispersed in the surface of cobalt acid lithium, make the dry powder batch mixing.Kynoar dry powder is joined among the acetone, and middling speed stirs 2～3h, fully dissolving.Again scattered dry powder batch mixing is joined in the lysate of above-mentioned Kynoar and acetone, put with in the homogenizer with 2500 rev/mins speed high-speed stirred until the slurry that forms homogeneous, stable, good fluidity, slurry is crossed colloid mill No. 3 times, and reaches 9000Pa.s by the viscosity that the amount of adding acetone is regulated slurry.Prepared slurry is coated on the aluminium foil of 20 μ m at last, and through cutting, cross oven dry bridge, roll-in, finishes the making of positive plate after die-cut.
The making of negative plate
Each weight ratio of constituents example of cathode size is: carbonaceous mesophase spherules: superconduction carbon black: Kynoar: acetone=96: 1.5: 2.5: 120.At first carbonaceous mesophase spherules, superconduction carbon black are carried out 150 ℃ of high-temperature baking 4h, Kynoar is carried out 90 ℃ of high-temperature baking 2h, make dry powder respectively.Then baked carbonaceous mesophase spherules dry powder is carried out dispersion treatment under inert gas shielding, the superconduction carbon ink is dispersed in the surface of carbonaceous mesophase spherules, make the dry powder batch mixing.Kynoar dry powder is joined among the acetone, and middling speed stirs 2～3h, fully dissolving.Again scattered dry powder batch mixing is joined in the lysate of above-mentioned Kynoar and acetone, put with in the homogenizer with 2500 rev/mins speed high-speed stirred until the slurry that forms homogeneous, stable, good fluidity, slurry is crossed colloid mill No. 3 times, and reaches 4000Pa.s by the viscosity that the amount of adding pure water is regulated slurry.Prepared slurry is coated on the Copper Foil of 12 μ m at last, and through cutting, cross oven dry bridge, roll-in, finishes the making of negative plate after die-cut.
The preparation of electrolyte
1.5mol/L lithium hexafluoro phosphate, solvent is that volume ratio is ethyl carbonate ester EC: diethyl carbonate DEC: the first and second basic carbonic ester EMC: inferior vinyl carbonate VC: cyclohexyl benzene CHB=1: 1: 1: 0.2: 0.05 mixed liquid stirs with magnetic stirring apparatus.
But all the other corresponding construction compositions, technology, step and the method class of battery are in example 1,2 or 3.
The positive and negative plate of making electric core use among the above-mentioned routine 2-4 is respectively the positive and negative plate that corresponding embodiment method is made.
Claims (10)
1. quick-chargeable, high-security high-multiplying-power battery, comprise positive and negative electrode collector, electric core, electrolyte, the positive and negative electrode slurry, it is characterized in that it is respectively that 85%～95% positive active material, 0.5%～5% conductive agent, 0.2%～2% dispersant and 2%～4% binding agent constitute by weight ratio that described anode sizing agent comprises, described cathode size comprises being respectively that 90～95% negative electrode active material, 0.1%～3% conductive agent, 0.1%～1.5% dispersant, 2%～4% binding agent constitute by weight ratio.
2. according to the described quick-chargeable, high-security high-multiplying-power battery of claim 1, it is characterized in that described positive active material comprises that following one or more one-tenth are grouped into: respectively through the pressure resistant type cobalt of metal-doped modification acid lithium, LiMn2O4, nickel LiMn2O4 and nickle cobalt lithium manganate; Described negative electrode active material comprises one or more compositions in the following composition: natural modified graphite, common Delanium, carbonaceous mesophase spherules and/or lithium titanate;
Described positive and negative electrode conductive agent comprises one or more compositions in the following composition respectively: acetylene black, superconduction carbon ink, nano-sized carbon, CNT (carbon nano-tube), nano silicon and nano aluminium oxide;
Described positive and negative electrode dispersant is respectively the nonionic organic surface active agent;
Described positive and negative electrode binding agent is respectively molecular weight at the high polymer more than 1,000,000;
Described electrolyte comprises lithium salts lithium hexafluoro phosphate and/or two oxalic acid borate lithium and following solvent composition below two kinds or two kinds: ethylene carbonate, vinylene carbonate, methyl ethyl carbonate, diethyl carbonate and propene carbonate.
3. according to claim 1 or 2 described quick-chargeable, high-security high-multiplying-power batteries, it is characterized in that described positive and negative electrode dispersant comprises one or more compositions in the following composition respectively: sodium carboxymethylcellulose, ethylacrylic acid methyl esters and methyl methacrylate;
Described positive and negative electrode binding agent is respectively butadiene-styrene rubber and/or Kynoar;
Described electrolyte comprise 1.2mol/L lithium hexafluoro phosphate, form with the mixed liquid of the solvent of following volume ratio: ethyl carbonate ester EC: diethyl carbonate DEC: the first and second basic carbonic ester EMC: inferior vinyl carbonate VC: cyclohexyl benzene CHB=1: 1: 1: 0.2: 0.05.
4. according to claim 1 or 2 described quick-chargeable, high-security high-multiplying-power batteries, it is characterized in that described electrolyte also comprises the additive of one or both compositions in the following composition: 1,3-propane sultone, cyclohexyl benzene and biphenyl.
5. according to the described quick-chargeable, high-security high-multiplying-power battery of claim 1, it is characterized in that described positive and negative electrode collector is three-dimensional collector, two-dimentional collector or metal tape; Described electric core is multipole ear winding formula or the lamination type electric core that comprises that positive and negative plate constitutes.
6. according to the described quick-chargeable, high-security high-multiplying-power battery of claim 5, the thickness that it is characterized in that described plus plate current-collecting body is 18～30 μ m, and the thickness of negative current collector is 10～18 μ m; Described multipole ear winding formula or lamination type electric core, its positive pole ear is connected and composed by an end that is positioned at electric core, each tongue piece of being connected in an end of each positive plate that constitutes electric core, and negative lug is connected and composed by each tongue piece other end that is positioned at electric core, that be connected in an end of each negative plate that constitutes electric core.
7. the manufacture method of the described quick-chargeable, high-security high-multiplying-power battery of claim 1, comprise the making of positive and negative electrode slurry and the making of electric core, it is characterized in that when the making of positive and negative electrode slurry, positive and negative electrode active material, conductive agent, dispersant and binding agent all mix with dry powder, slurry was all crossed colloid mill and is fully disperseed, grind and spare before coating, and mixed up viscosity; The coiling of described electric core is made and is adopted multipole ear winding or packed lamination to make.
8. the manufacture method of quick-chargeable, high-security high-multiplying-power battery according to claim 7, it is characterized in that the making of described positive and negative electrode slurry: each composition that at first will constitute anode sizing agent is done following processing: active material, conductive agent, dispersant and binding agent toast respectively by desired baking temperature of technology and time and make dry powder;
Then active material, conductive agent and the dispersant dry powder of making is carried out dispersion treatment under inert gas shielding and make the dry powder batch mixing;
Binding agent dry powder and the solvent made are made lysate through the stirring of certain hour, the more above-mentioned dry powder batch mixing of making is joined to stir in this lysate of making and make needed, as to reach certain viscosity slurry;
The above-mentioned slurry of making is crossed the colloid mill several times;
The making of described cathode size: when cathode size was made, the making of its lysate was that dispersant dry powder is joined among the pure water after certain hour stirs, and added binding agent dry powder then and stirred certain hour again and make; The making of all the other technologies, step and method and anode sizing agent roughly the same;
Each the composition deal that constitutes the positive and negative electrode slurry is carried out proportioning by technological requirement; The viscosity of negative or positive electrode slurry is regulated by interpolation acetone or pure water when slurry is crossed colloid mill.
9. according to the manufacture method of claim 7 or 8 described described quick-chargeable, high-security high-multiplying-power batteries, when it is characterized in that described dry powder is made, the baking temperature of active material and conductive agent, time is 120-150 ℃, 2-5h respectively, and the baking temperature of dispersant and binding agent, time is 60-120 ℃, 1-3h respectively; Mixing time when binding agent dry powder and solvent are made lysate is 2～3h; Mixing speed when described dry powder batch mixing and lysate are made slurry is 2000-3000 rev/min, and slurry is crossed colloid mill No. 3 times, and the viscosity of the slurry of making is 8000-12000Pa.s;
When the dry powder of described cathode size was made, the baking temperature of active material and conductive agent, time is 150-250 ℃, 3-6h respectively, and the baking temperature of dispersant and binding agent, time is 80-100 ℃, 1-3h respectively; When using dispersant to make lysate, the mixing time that joins among the pure water is 0.5～2.5h, and the mixing time that adds binding agent is 0.2～1.5h; Mixing speed when dry powder batch mixing and lysate are made slurry is 2000-3000 rev/min, and slurry is crossed colloid mill No. 3 times, and the viscosity of the slurry of making is 3000-6000Pa.s.
10. according to the manufacture method of the described described quick-chargeable, high-security high-multiplying-power battery of claim 7, the making that it is characterized in that described electric core comprises the making of multipole ear winding formula and/or lamination type electric core:
The making of multipole ear winding formula electricity core: positive plate, barrier film, negative plate are made duplexer with an end of the one section uncoated slurry in end separately of positive and negative plate part opposed mutually, coating sizing-agent the stacked above one another that overlaps, this duplexer of reeling is made pellet, positive pole ear is made at this end formation tongue piece of each positive plate in the angle part, both sides at the position of each the one section uncoated slurry in positive plate end after one end of die-cut pellet is reeled; The use the same method angle part, both sides at position of uncoated slurry of each negative plate of the other end of die-cut pellet forms tongue piece and makes negative lug, thereby pellet is made electric core;
The making of lamination type electric core: some positive and negative plates and barrier film overlapped with the part of coating sizing-agent by the order of positive plate, barrier film, negative plate to be laminated to the needed number of plies repeatedly and to make pellet; Re-use the electric core that the manufacture method of above-mentioned multipole ear winding formula electricity core is made pellet.
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