CN106252589A - A kind of flexible battery and flexible battery group - Google Patents
A kind of flexible battery and flexible battery group Download PDFInfo
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- CN106252589A CN106252589A CN201510325072.8A CN201510325072A CN106252589A CN 106252589 A CN106252589 A CN 106252589A CN 201510325072 A CN201510325072 A CN 201510325072A CN 106252589 A CN106252589 A CN 106252589A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The embodiment of the invention discloses a kind of flexible battery and flexible battery group.Described flexible battery includes: conductive layer, ion conducting layer and positive electrode material layer;Described conductive layer includes the first conductive layer and the second conductive layer;Wherein, described positive electrode material layer covers the first surface at described first conductive layer;Described ion conducting layer covers the first surface at described positive electrode material layer;Described second conductive layer covers the first surface at described ion conducting layer;Wherein, the thickness of described conductive layer, described ion conducting layer and described positive electrode material layer is respectively less than first threshold, Second Threshold and the 3rd threshold value so that described flexible battery has flexibility.
Description
Technical field
The present invention relates to battery technology, be specifically related to a kind of flexible battery and flexible battery group.
Background technology
Along with the development of electronic technology, electronic equipment is just trending towards frivolous small and exquisite, intelligent direction development.
Flexible device is increasingly becoming frivolous small and exquisite, the newly emerging force of intelligent direction, such as flexible screen, flexible hand
Machine, flexible watch etc..The realization of flexible device, the most crucial parts are the flexibilities of battery.Existing
In technology, how to realize the flexibility of battery, there is no effective solution at present.
Summary of the invention
For solving the technical problem of existing existence, the embodiment of the present invention provides a kind of flexible battery and flexible battery
Group, it is possible to realize the flexibility of battery.
For reaching above-mentioned purpose, the technical scheme of the embodiment of the present invention is achieved in that
The invention provides a kind of flexible battery, described flexible battery includes: conductive layer, ion conducting layer and
Positive electrode material layer;Described conductive layer includes the first conductive layer and the second conductive layer;Wherein,
Described positive electrode material layer covers the first surface at described first conductive layer;Described ion conducting layer covers
First surface at described positive electrode material layer;Described second conductive layer covers at the first of described ion conducting layer
Surface;
Wherein, the thickness of described conductive layer, described ion conducting layer and described positive electrode material layer is less than respectively
First threshold, Second Threshold and the 3rd threshold value so that described flexible battery has flexibility.
It is preferred that the material of described conductive layer is metal material.
It is preferred that the material of described ion conducting layer includes containing lithium metal oxide;Described containing lithium burning
Thing includes: LiPOxNy;Wherein, x and y is positive number.
It is preferred that the material of described positive electrode material layer includes the oxygen-containing lithium salts of metal;The oxygen-containing lithium of described metal
Salt includes one of them of following material: lithium and cobalt oxides, lithium nickel oxide, lithium manganese oxide, manganese nickel cobalt
Composite oxides, lithium-barium oxide, oxide/lithium ferrite.
It is preferred that described flexible battery also includes that lead district, described lead-in wire include that the first lead district and second is drawn
Line district;Described first lead district contacts with the second surface of described first conductive layer;Described second lead district with
The first surface contact of described second conductive layer.
It is preferred that the material of described lead district is metal material.
Invention further provides a kind of flexible battery group, described flexible battery group includes at least two flexible battery;
Described at least two flexible battery superposition makes in adjacent two flexible batteries, the first table of the first flexible battery
The second surface of face and the second flexible battery is adjacent;Described at least two flexible battery is connected in series;
Wherein, described flexible battery includes: conductive layer, ion conducting layer and positive electrode material layer;Described conduction
Layer includes the first conductive layer and the second conductive layer;Wherein,
Described positive electrode material layer covers the first surface at described first conductive layer;Described ion conducting layer covers
First surface at described positive electrode material layer;Described second conductive layer covers at the first of described ion conducting layer
Surface;
Wherein, the thickness of described conductive layer, described ion conducting layer and described positive electrode material layer is less than respectively
First threshold, Second Threshold and the 3rd threshold value so that described flexible battery has flexibility.
It is preferred that the material of described ion conducting layer includes containing lithium metal oxide;Described containing lithium burning
Thing includes: LiPOxNy;Wherein, x and y is positive number.
It is preferred that the material of described positive electrode material layer includes the oxygen-containing lithium salts of metal;The oxygen-containing lithium of described metal
Salt includes one of them of following material: lithium and cobalt oxides, lithium nickel oxide, lithium manganese oxide, manganese nickel cobalt
Composite oxides, lithium-barium oxide, oxide/lithium ferrite..
It is preferred that described flexible battery also includes that lead district, described lead district include the first lead district and second
Silver wire district;Described first lead district contacts with the second surface of described first conductive layer;Described second lead-in wire
District contacts with the first surface of described second conductive layer.
The flexible battery of embodiment of the present invention offer and flexible battery group, described flexible battery includes: conductive layer,
Ion conducting layer and positive electrode material layer;Described conductive layer includes the first conductive layer and the second conductive layer;Wherein,
Described positive electrode material layer covers the first surface at described first conductive layer;Described ion conducting layer covers in institute
State the first surface of positive electrode material layer;Described second conductive layer covers the first surface at described ion conducting layer;
Wherein, the thickness of described conductive layer, described ion conducting layer and described positive electrode material layer is respectively less than first
Threshold value, Second Threshold and the 3rd threshold value so that described flexible battery has flexibility.So, the present invention is used
The technical scheme of the flexible battery of embodiment, is all less than by the thickness of each material layer in flexible battery
Corresponding threshold value, so that the gross thickness of flexible battery meets it has flexible characteristic, it is achieved that battery soft
Property.On the other hand, use the technical scheme of flexible battery group of the embodiment of the present invention, it is achieved that multiple not
With the output of output voltage, it is achieved thereby that the equipment for different operating voltage is powered.
Accompanying drawing explanation
Fig. 1 is the composition structural representation of the flexible battery of the embodiment of the present invention one;
Fig. 2 is the composition structural representation of the flexible battery of the embodiment of the present invention two;
Fig. 3 is the composition structural representation of the flexible battery group of the embodiment of the present invention three.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further detailed explanation.
Embodiment one
Embodiments provide a kind of flexible battery.Fig. 1 is the flexible battery of the embodiment of the present invention one
Composition structural representation;As it is shown in figure 1, described flexible battery includes: conductive layer 11, ion conducting layer 13
With positive electrode material layer 12;Described conductive layer 11 includes the first conductive layer 111 and the second conductive layer 112;Wherein,
Described positive electrode material layer 12 covers the first surface at described first conductive layer 111;Described ionic conduction
Layer 13 covers the first surface at described positive electrode material layer 12;Described second conductive layer 112 covers described
The first surface of ion conducting layer 13;Wherein, described conductive layer 11, described ion conducting layer 13 and described
The thickness of positive electrode material layer 12 is respectively less than first threshold, Second Threshold and the 3rd threshold value so that described soft
Property battery has flexibility.
In the present embodiment, described conductive layer 11 includes the first conductive layer 111 and the second conductive layer 112;Described
Conductive layer 11 is used for collecting electric current, in order to form bigger current versus output;Based on this, described conductive layer
The first conductive layer 111 included by 11 and the second conductive layer 112 are respectively arranged at the outside of described flexible battery;
When flexible battery is placed as shown in Figure 1, described first conductive layer 111 and described second conductive layer 112 points
It is not arranged at top and the lowermost end of described flexible battery.Concrete, the material of described conductive layer 11 is gold
Belong to material.Owing to the function of described conductive layer 11 is defeated to form bigger current versus for collecting electric current
Going out, the resistivity of the metal material that the most described conductive layer 11 is used is less, to avoid bringing unnecessary energy
Amount loss.Preferably, the resistivity of the metal material that described conductive layer 11 uses is not more than aluminum metal under room temperature
Resistivity, namely described conductive layer 11 use metal material include: gold, copper, aluminum etc., be not limited on
State metal material.
In the present embodiment, described ion conducting layer 13 includes solid electrolyte;Described solid electrolyte wraps
Include conductive ion and non-conductive ion;Non-conductive ion in described ion conducting layer 13 forms rigid backbone,
Internal exist more than conductive ion number planting oneself, these positions interconnect, formed one-dimensional tunnel type,
The ion diffusion admittance of 2-dimensional planar type or three-dimensional conductive type, conductive ion can in ion diffusion admittance certainly
By moving.Concrete, described solid electrolyte includes containing lithium metal oxide;Described containing lithium metal oxide
Including: LiPOxNy;Wherein, x and y is positive number;Can be understood as in average per molecule containing 1 lithium
(Li) a, phosphorus (P), x oxygen (O) and y nitrogen (N).Preferably, described containing lithium burning
Thing is nitrogenous lithium phosphate (LiPON).Certainly, the solid electrolyte in described ion conducting layer 13 is not limited to
LiPOxNyThe material characterized, it is also possible to be the one in sulfide-based solid electrolyte, such as LiaGePbSc;
Wherein, a, b and c are positive number.Described LiaGePbScSuch as Li10GeP2S12。
In the present embodiment, described positive electrode material layer 12 includes positive electrode;Described positive electrode is specially metal
Oxygen-containing lithium salts.During charging, lithium ion is deviate from from the lattice of described positive electrode, through solid electrolyte
After be inserted in the lattice of negative material so that negative pole richness lithium, positive extreme poverty lithium;During electric discharge, lithium ion is from negative pole
The lattice of material is deviate from, is inserted into after solid electrolyte in the lattice of positive electrode so that be just rich in
Lithium, the lean lithium of negative pole.So positive and negative pole material is inserting and during abjection lithium ion relative to the current potential of lithium metal
Difference defines the running voltage of the flexible battery of the present embodiment.
Concrete, the oxygen-containing lithium salts of described metal includes one of them of following material: lithium and cobalt oxides, lithium
Nickel oxide, lithium manganese oxide, manganese nickel cobalt composite oxides, lithium-barium oxide, oxide/lithium ferrite.Wherein,
Described lithium and cobalt oxides is specifically as follows cobalt acid lithium (LiCoO2).Described lithium nickel oxide is specifically as follows nickel acid
Lithium (LiNiO2).Described lithium manganese oxide is specifically as follows LiMnxOy;Wherein, x and y is positive number;
Described LiMnxOyIt is specifically as follows LiMnO2And/or LiMn2O4.Described manganese nickel cobalt composite oxides are concrete
Can be in conjunction with LiCoO2、LiNiO2、LiMnO2Three kinds of stratified materials.Described lithium-barium oxide can be LiVxOy;
Wherein, x and y is positive number;Described LiVxOyIt is specifically as follows LiVO2、LiaV2O4、LibV3O8With
LiV2O4、LiV NiO4、LiV CoO4Etc.;Wherein, a and b is positive number.Described oxide/lithium ferrite
Can be LiFeO2、LiFePO4Etc..
In the present embodiment, the thickness of described conductive layer 11 is less than first threshold;Described ion conducting layer 13
Thickness less than Second Threshold;The thickness of described positive electrode material layer 12 is less than the 3rd threshold value;Wherein, institute
State the summation of first threshold, described Second Threshold and described 3rd threshold value less than 5 millimeters so that described soft
Property battery has flexible characteristic, namely has bending characteristic.Concrete, described first conductive layer 111 and institute
The thickness stating the second conductive layer 112 can be 5 microns (μm);Described first conductive layer 111 and described
The thickness of two conductive layers 112 can float 100 microns, namely described first conductive layer 111 and described second is led
The thickness range of electric layer 112 is in 5 microns to 105 micrometer ranges.The thickness of described positive electrode material layer 12 can
Think 5 microns;The thickness of described positive electrode material layer 12 can float 100 microns, namely described positive electrode material layer
The thickness range of 12 is in 5 microns to 105 micrometer ranges.The thickness of described ion conducting layer 13 can be 2
Micron, the thickness of described ion conducting layer 13 can float 100 microns, namely described positive electrode material layer 12
Thickness range is in 2 microns to 102 micrometer ranges.
In the embodiment of the present invention, described positive electrode material layer 12 covers the first table at described first conductive layer 111
Face;Described ion conducting layer 13 covers the first surface at described positive electrode material layer 12;Described second conduction
Layer 112 covers the first surface at described ion conducting layer 13;It is to be understood that described second conductive layer
112, described ion conducting layer 13, described positive electrode material layer 12 superpose with described first conductive layer 111 laying
Form the flexible battery described in the present embodiment.The second conductive layer 112 in described flexible battery, ionic conduction
Layer 13, positive electrode material layer 12 and the first conductive layer 111 can use the first process technique laying superposition to make.
Described first process technique can be MEMS (MEMS, Micro-Electro-Mechanical
System) thin film preparation process;The thin film preparation process of described MEMS specifically may include that vacuum is thin
Film preparation technique, thermal oxide preparation technology, aqueous solution film deposition art or physical deposition technique;Wherein,
Described vacuum film preparation technology is specifically as follows physical vapor deposition (PVD, Physical Vapor
Deposition) technique and chemical vapour deposition (CVD, Chemical Vapor Deposition) technique.This
Described in embodiment, the first process technique can use any process technique of the prior art, the embodiment of the present invention
In do not elaborate.
Use the technical scheme of the flexible battery of the embodiment of the present invention, by each material layer in flexible battery
Thickness all less than corresponding threshold value so that the gross thickness of flexible battery meets it has flexible characteristic,
Achieve the flexibility of battery.
Embodiment two
The embodiment of the present invention additionally provides a kind of flexible battery.Fig. 2 is the flexible battery of the embodiment of the present invention two
Composition structural representation;As in figure 2 it is shown, described flexible battery includes: conductive layer 11, ion conducting layer
13 and positive electrode material layer 12;Described conductive layer 11 includes the first conductive layer 111 and the second conductive layer 112;
Wherein,
Described positive electrode material layer 12 covers the first surface at described first conductive layer 111;Described ionic conduction
Layer 13 covers the first surface at described positive electrode material layer 12;Described second conductive layer 112 covers described
The first surface of ion conducting layer 13;Wherein, described conductive layer 11, described ion conducting layer 13 and described
The thickness of positive electrode material layer 12 is respectively less than first threshold, Second Threshold and the 3rd threshold value so that described soft
Property battery has flexibility;
Described flexible battery also includes that lead district, described lead-in wire include the first lead district 141 and the second lead district
142;Described first lead district 141 contacts with the second surface of described first conductive layer 111;Described second draws
Line district 142 contacts with the first surface of described second conductive layer 112.
In the present embodiment, described conductive layer 11 includes the first conductive layer 111 and the second conductive layer 112;Described
Conductive layer 11 is used for collecting electric current, in order to form bigger current versus output;Based on this, described conductive layer
The first conductive layer 111 included by 11 and the second conductive layer 112 are respectively arranged at the outside of described flexible battery;
When flexible battery is placed as shown in Figure 1, described first conductive layer 111 and described second conductive layer 112 points
It is not arranged at top and the lowermost end of described flexible battery.Concrete, the material of described conductive layer 11 is gold
Belong to material.Owing to the function of described conductive layer 11 is defeated to form bigger current versus for collecting electric current
Going out, the resistivity of the metal material that the most described conductive layer 11 is used is less, to avoid bringing unnecessary energy
Amount loss.Preferably, the resistivity of the metal material that described conductive layer 11 uses is not more than aluminum metal under room temperature
Resistivity, namely described conductive layer 11 use metal material include: gold, copper, aluminum etc., be not limited on
State metal material.
Based on above-mentioned first conductive layer 111 and the second conductive layer 112, flexible battery described in the present embodiment is also
It is provided with lead district, it is simple to the electric current collected by conductive layer 11 is drawn.Further, described first lead district
142 and described second lead district 142 can be connected with power supply unit by wire respectively, i.e. realize flexible battery
Power for described power supply unit.
In the present embodiment, described ion conducting layer 13 includes solid electrolyte;Described solid electrolyte wraps
Include conductive ion and non-conductive ion;Non-conductive ion in described ion conducting layer 13 forms rigid backbone,
Internal exist more than conductive ion number planting oneself, these positions interconnect, formed one-dimensional tunnel type,
The ion diffusion admittance of 2-dimensional planar type or three-dimensional conductive type, conductive ion can in ion diffusion admittance certainly
By moving.Concrete, described solid electrolyte includes containing lithium metal oxide;Described containing lithium metal oxide
Including: LiPOxNy;Wherein, x and y is positive number;Can be understood as in average per molecule containing 1 lithium
(Li) a, phosphorus (P), x oxygen (O) and y nitrogen (N).Preferably, described containing lithium burning
Thing is nitrogenous lithium phosphate (LiPON).Certainly, the solid electrolyte in described ion conducting layer 13 is not limited to
LiPOxNyThe material characterized, it is also possible to be the one in sulfide-based solid electrolyte, such as LiaGePbSc;
Wherein, a, b and c are positive number.Described LiaGePbScSuch as Li10GeP2S12。
In the present embodiment, described positive electrode material layer 12 includes positive electrode;Described positive electrode is specially metal
Oxygen-containing lithium salts.During charging, lithium ion is deviate from from the lattice of described positive electrode, through solid electrolyte
After be inserted in the lattice of negative material so that negative pole richness lithium, positive extreme poverty lithium;During electric discharge, lithium ion is from negative pole
The lattice of material is deviate from, is inserted into after solid electrolyte in the lattice of positive electrode so that be just rich in
Lithium, the lean lithium of negative pole.So positive and negative pole material is inserting and during abjection lithium ion relative to the current potential of lithium metal
Difference defines the running voltage of the flexible battery of the present embodiment.
Concrete, the oxygen-containing lithium salts of described metal includes one of them of following material: lithium and cobalt oxides, lithium
Nickel oxide, lithium manganese oxide, manganese nickel cobalt composite oxides, lithium-barium oxide, oxide/lithium ferrite.Wherein,
Described lithium and cobalt oxides is specifically as follows cobalt acid lithium (LiCoO2).Described lithium nickel oxide is specifically as follows nickel acid
Lithium (LiNiO2).Described lithium manganese oxide is specifically as follows LiMnxOy;Wherein, x and y is positive number;
Described LiMnxOyIt is specifically as follows LiMnO2And/or LiMn2O4.Described manganese nickel cobalt composite oxides are concrete
Can be in conjunction with LiCoO2、LiNiO2、LiMnO2Three kinds of stratified materials.Described lithium-barium oxide can be LiVxOy;
Wherein, x and y is positive number;Described LiVxOyIt is specifically as follows LiVO2、LiaV2O4、LibV3O8With
LiV2O4、LiV NiO4、LiV CoO4Etc.;Wherein, a and b is positive number.Described oxide/lithium ferrite
Can be LiFeO2、LiFePO4Etc..
In the present embodiment, the thickness of described conductive layer 11 is less than first threshold;Described ion conducting layer 13
Thickness less than Second Threshold;The thickness of described positive electrode material layer 12 is less than the 3rd threshold value;Wherein, institute
State the summation of first threshold, described Second Threshold and described 3rd threshold value less than 5 millimeters so that described soft
Property battery has flexible characteristic, namely has bending characteristic.Concrete, described first conductive layer 111 and institute
The thickness stating the second conductive layer 112 can be 5 microns (μm);Described first conductive layer 111 and described
The thickness of two conductive layers 112 can float 100 microns, namely described first conductive layer 111 and described second is led
The thickness range of electric layer 112 is in 5 microns to 105 micrometer ranges.The thickness of described positive electrode material layer 12 can
Think 5 microns;The thickness of described positive electrode material layer 12 can float 100 microns, namely described positive electrode material layer
The thickness range of 12 is in 5 microns to 105 micrometer ranges.The thickness of described ion conducting layer 13 can be 2
Micron, the thickness of described ion conducting layer 13 can float 100 microns, namely described positive electrode material layer 12
Thickness range is in 2 microns to 102 micrometer ranges.
In the embodiment of the present invention, described positive electrode material layer 12 covers the first table at described first conductive layer 111
Face;Described ion conducting layer 13 covers the first surface at described positive electrode material layer 12;Described second conduction
Layer 112 covers the first surface at described ion conducting layer 13;It is to be understood that described second conductive layer
112, described ion conducting layer 13, described positive electrode material layer 12 superpose with described first conductive layer 111 laying
Form the flexible battery described in the present embodiment.The second conductive layer 112 in described flexible battery, ionic conduction
Layer 13, positive electrode material layer 12 and the first conductive layer 111 can use the first process technique laying superposition to make.
Described first processes the thin film preparation process that technique can be MEMS;The film preparation work of described MEMS
Skill specifically may include that vacuum film preparation technology, thermal oxide preparation technology, aqueous solution film deposition art
Or physical deposition technique;Wherein, described vacuum film preparation technology is specifically as follows physical vapor deposition (PVD)
Technique and chemical vapour deposition (CVD) technique.Described in the present embodiment, the first process technique can use existing
Any process technique in technology, does not elaborates in the embodiment of the present invention.
Use the technical scheme of the flexible battery of the embodiment of the present invention, by each material layer in flexible battery
Thickness all less than corresponding threshold value so that the gross thickness of flexible battery meets it has flexible characteristic,
Achieve the flexibility of battery.
Embodiment three
The flexible battery provided based on embodiment one and embodiment two, the embodiment of the present invention additionally provides a kind of soft
Property set of cells.Fig. 3 is the composition structural representation of the flexible battery group of the embodiment of the present invention three;Such as Fig. 3 institute
Showing, described flexible battery group includes at least two flexible battery 10;Described at least two flexible battery 10 is folded
Add so that in adjacent two flexible batteries, the first surface of the first flexible battery and the second of the second flexible battery
Surface is adjacent;Described at least two flexible battery 10 is connected in series;In the present embodiment, described flexible battery group
In arbitrary flexible battery can be based on the flexible battery shown in embodiment one or embodiment two;Concrete, knot
Closing shown in Fig. 1 or Fig. 2, wherein, described flexible battery 10 includes: conductive layer 11, ion conducting layer 13
With positive electrode material layer 12;Described conductive layer 11 includes the first conductive layer 111 and the second conductive layer 112;Wherein,
Described positive electrode material layer 12 covers the first surface at described first conductive layer 111;Described ionic conduction
Layer 13 covers the first surface at described positive electrode material layer 12;Described second conductive layer 112 covers described
The first surface of ion conducting layer 13;Wherein, described conductive layer 11, described ion conducting layer 13 and described
The thickness of positive electrode material layer 12 is respectively less than first threshold, Second Threshold and the 3rd threshold value so that described soft
Property battery has flexibility;
Described flexible battery also includes that lead district, described lead-in wire include the first lead district 141 and the second lead district
142;Described first lead district 141 contacts with the second surface of described first conductive layer 111;Described second draws
Line district 142 contacts with the first surface of described second conductive layer 112.
In the present embodiment, described conductive layer 11 includes the first conductive layer 111 and the second conductive layer 112;Described
Conductive layer 11 is used for collecting electric current, in order to form bigger current versus output;Based on this, described conductive layer
The first conductive layer 111 included by 11 and the second conductive layer 112 are respectively arranged at the outside of described flexible battery;
When flexible battery is placed as shown in Figure 1, described first conductive layer 111 and described second conductive layer 112 points
It is not arranged at top and the lowermost end of described flexible battery.Concrete, the material of described conductive layer 11 is gold
Belong to material.Owing to the function of described conductive layer 11 is defeated to form bigger current versus for collecting electric current
Going out, the resistivity of the metal material that the most described conductive layer 11 is used is less, to avoid bringing unnecessary energy
Amount loss.Preferably, the resistivity of the metal material that described conductive layer 11 uses is not more than aluminum metal under room temperature
Resistivity, namely described conductive layer 11 use metal material include: gold, copper, aluminum etc., be not limited on
State metal material.
Based on above-mentioned first conductive layer 111 and the second conductive layer 112, flexible battery described in the present embodiment is also
It is provided with lead district, it is simple to the electric current collected by conductive layer 11 is drawn.Further, described first lead district
142 and described second lead district 142 can be connected with power supply unit by wire respectively, i.e. realize flexible battery
Power for described power supply unit.
The lead district contact of adjacent two flexible batteries in the flexible battery group described in the present embodiment so that institute
At least two flexible battery stated in flexible battery group is connected in series.Arbitrary flexible electrical in described flexible battery group
The lead district in pond is all connected with a lead-in wire;Two lead district contacted in adjacent two flexible batteries can be with
A piece lead-in wire connects.Specifically can as it is shown on figure 3, the first lead district of the first flexible battery 1 is connected with lead-in wire,
Second lead district of the second flexible battery is connected with lead-in wire 5, contacts in remaining adjacent two flexible battery
Lead district is connected with lead-in wire 2, lead-in wire 3 and lead-in wire 4 respectively.Then in the flexible battery group described in the present embodiment,
Different output voltages can be obtained, such that it is able to be the equipment confession of different operating voltage by any two lead-in wires
Electricity.
In the present embodiment, described ion conducting layer 13 includes solid electrolyte;Described solid electrolyte wraps
Include conductive ion and non-conductive ion;Non-conductive ion in described ion conducting layer 13 forms rigid backbone,
Internal exist more than conductive ion number planting oneself, these positions interconnect, formed one-dimensional tunnel type,
The ion diffusion admittance of 2-dimensional planar type or three-dimensional conductive type, conductive ion can in ion diffusion admittance certainly
By moving.Concrete, described solid electrolyte includes containing lithium metal oxide;Described containing lithium metal oxide
Including: LiPOxNy;Wherein, x and y is positive number;Can be understood as in average per molecule containing 1 lithium
(Li) a, phosphorus (P), x oxygen (O) and y nitrogen (N).Preferably, described containing lithium burning
Thing is nitrogenous lithium phosphate (LiPON).Certainly, the solid electrolyte in described ion conducting layer 13 is not limited to
LiPOxNyThe material characterized, it is also possible to be the one in sulfide-based solid electrolyte, such as LiaGePbSc;
Wherein, a, b and c are positive number.Described LiaGePbScSuch as Li10GeP2S12。
In the present embodiment, described positive electrode material layer 12 includes positive electrode;Described positive electrode is specially metal
Oxygen-containing lithium salts.During charging, lithium ion is deviate from from the lattice of described positive electrode, through solid electrolyte
After be inserted in the lattice of negative material so that negative pole richness lithium, positive extreme poverty lithium;During electric discharge, lithium ion is from negative pole
The lattice of material is deviate from, is inserted into after solid electrolyte in the lattice of positive electrode so that be just rich in
Lithium, the lean lithium of negative pole.So positive and negative pole material is inserting and during abjection lithium ion relative to the current potential of lithium metal
Difference defines the running voltage of the flexible battery of the present embodiment.
Concrete, the oxygen-containing lithium salts of described metal includes one of them of following material: lithium and cobalt oxides, lithium
Nickel oxide, lithium manganese oxide, manganese nickel cobalt composite oxides, lithium-barium oxide, oxide/lithium ferrite.Wherein,
Described lithium and cobalt oxides is specifically as follows cobalt acid lithium (LiCoO2).Described lithium nickel oxide is specifically as follows nickel acid
Lithium (LiNiO2).Described lithium manganese oxide is specifically as follows LiMnxOy;Wherein, x and y is positive number;
Described LiMnxOyIt is specifically as follows LiMnO2And/or LiMn2O4.Described manganese nickel cobalt composite oxides are concrete
Can be in conjunction with LiCoO2、LiNiO2、LiMnO2Three kinds of stratified materials.Described lithium-barium oxide can be LiVxOy;
Wherein, x and y is positive number;Described LiVxOyIt is specifically as follows LiVO2、LiaV2O4、LibV3O8With
LiV2O4、LiV NiO4、LiV CoO4Etc.;Wherein, a and b is positive number.Described oxide/lithium ferrite
Can be LiFeO2、LiFePO4Etc..
In the present embodiment, the thickness of described conductive layer 11 is less than first threshold;Described ion conducting layer 13
Thickness less than Second Threshold;The thickness of described positive electrode material layer 12 is less than the 3rd threshold value;Wherein, institute
State the summation of first threshold, described Second Threshold and described 3rd threshold value less than 5 millimeters so that described soft
Property battery has flexible characteristic, namely has bending characteristic.Concrete, described first conductive layer 111 and institute
The thickness stating the second conductive layer 112 can be 5 microns (μm);Described first conductive layer 111 and described
The thickness of two conductive layers 112 can float 100 microns, namely described first conductive layer 111 and described second is led
The thickness range of electric layer 112 is in 5 microns to 105 micrometer ranges.The thickness of described positive electrode material layer 12 can
Think 5 microns;The thickness of described positive electrode material layer 12 can float 100 microns, namely described positive electrode material layer
The thickness range of 12 is in 5 microns to 105 micrometer ranges.The thickness of described ion conducting layer 13 can be 2
Micron, the thickness of described ion conducting layer 13 can float 100 microns, namely described positive electrode material layer 12
Thickness range is in 2 microns to 102 micrometer ranges.
In the embodiment of the present invention, described positive electrode material layer 12 covers the first table at described first conductive layer 111
Face;Described ion conducting layer 13 covers the first surface at described positive electrode material layer 12;Described second conduction
Layer 112 covers the first surface at described ion conducting layer 13;It is to be understood that described second conductive layer
112, described ion conducting layer 13, described positive electrode material layer 12 superpose with described first conductive layer 111 laying
Form the flexible battery described in the present embodiment.The second conductive layer 112 in described flexible battery, ionic conduction
Layer 13, positive electrode material layer 12 and the first conductive layer 111 can use the first process technique laying superposition to make.
Described first processes the thin film preparation process that technique can be MEMS;The film preparation work of described MEMS
Skill specifically may include that vacuum film preparation technology, thermal oxide preparation technology, aqueous solution film deposition art
Or physical deposition technique;Wherein, described vacuum film preparation technology is specifically as follows physical vapor deposition (PVD)
Technique and chemical vapour deposition (CVD) technique.Described in the present embodiment, the first process technique can use existing
Any process technique in technology, does not elaborates in the embodiment of the present invention.
Use the technical scheme of the flexible battery of the embodiment of the present invention, by each material layer in flexible battery
Thickness all less than corresponding threshold value so that the gross thickness of flexible battery meets it has flexible characteristic,
Achieve the flexibility of battery.On the other hand, use the technical scheme of the flexible battery group of the embodiment of the present invention,
Achieve the output of multiple different output voltage, it is achieved thereby that the equipment for different operating voltage is powered.
In several embodiments provided herein, it should be understood that disclosed equipment can pass through it
Its mode realizes.Apparatus embodiments described above is only schematically, and actual can have when realizing
Other dividing mode, as some features can be ignored.It addition, shown or discussed each ingredient phase
Coupling between Hu or direct-coupling or communication connection can be by some interfaces, equipment or unit
INDIRECT COUPLING or communication connection, can be electrical, machinery or other form.
The above-mentioned unit illustrated as separating component can be or may not be physically separate, as
The parts that unit shows can be or may not be physical location;Can be selected it according to the actual needs
In part or all of unit realize the purpose of the present embodiment scheme.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in
Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should
It is as the criterion with described scope of the claims.
Claims (10)
1. a flexible battery, it is characterised in that described flexible battery includes: conductive layer, ion conducting layer and positive electrode material layer;Described conductive layer includes the first conductive layer and the second conductive layer;Wherein,
Described positive electrode material layer covers the first surface at described first conductive layer;Described ion conducting layer covers the first surface at described positive electrode material layer;Described second conductive layer covers the first surface at described ion conducting layer;
Wherein, the thickness of described conductive layer, described ion conducting layer and described positive electrode material layer is respectively less than first threshold, Second Threshold and the 3rd threshold value so that described flexible battery has flexibility.
Flexible battery the most according to claim 1, it is characterised in that the material of described conductive layer is metal material.
Flexible battery the most according to claim 1, it is characterised in that the material of described ion conducting layer includes containing lithium metal oxide;Described include containing lithium metal oxide: LiPOxNy;Wherein, x and y is positive number.
Flexible battery the most according to claim 1, it is characterised in that the material of described positive electrode material layer includes the oxygen-containing lithium salts of metal;The oxygen-containing lithium salts of described metal includes one of them of following material: lithium and cobalt oxides, lithium nickel oxide, lithium manganese oxide, manganese nickel cobalt composite oxides, lithium-barium oxide, oxide/lithium ferrite.
Flexible battery the most according to claim 1, it is characterised in that described flexible battery also includes that lead district, described lead-in wire include the first lead district and the second lead district;Described first lead district contacts with the second surface of described first conductive layer;Described second lead district contacts with the first surface of described second conductive layer.
Flexible battery the most according to claim 5, it is characterised in that the material of described lead district is metal material.
7. a flexible battery group, described flexible battery group includes at least two flexible battery;Described at least two flexible battery superposition makes in adjacent two flexible batteries, and the first surface of the first flexible battery and the second surface of the second flexible battery are adjacent;Described at least two flexible battery is connected in series;
Wherein, described flexible battery includes: conductive layer, ion conducting layer and positive electrode material layer;Described conductive layer includes the first conductive layer and the second conductive layer;Wherein,
Described positive electrode material layer covers the first surface at described first conductive layer;Described ion conducting layer covers the first surface at described positive electrode material layer;Described second conductive layer covers the first surface at described ion conducting layer;
Wherein, the thickness of described conductive layer, described ion conducting layer and described positive electrode material layer is respectively less than first threshold, Second Threshold and the 3rd threshold value so that described flexible battery has flexibility.
Flexible battery group the most according to claim 7, it is characterised in that the material of described ion conducting layer includes containing lithium metal oxide;Described include containing lithium metal oxide: LiPOxNy;Wherein, x and y is positive number.
Flexible battery group the most according to claim 7, it is characterised in that the material of described positive electrode material layer includes the oxygen-containing lithium salts of metal;The oxygen-containing lithium salts of described metal includes one of them of following material: lithium and cobalt oxides, lithium nickel oxide, lithium manganese oxide, manganese nickel cobalt composite oxides, lithium-barium oxide, oxide/lithium ferrite.
Flexible battery group the most according to claim 7, it is characterised in that described flexible battery also includes that lead district, described lead district include the first lead district and the second silver wire district;Described first lead district contacts with the second surface of described first conductive layer;Described second lead district contacts with the first surface of described second conductive layer.
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