CN112086291A - All-solid-state capacitor cell, laminated capacitor cell and composite capacitor cell - Google Patents
All-solid-state capacitor cell, laminated capacitor cell and composite capacitor cell Download PDFInfo
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- CN112086291A CN112086291A CN201910509622.XA CN201910509622A CN112086291A CN 112086291 A CN112086291 A CN 112086291A CN 201910509622 A CN201910509622 A CN 201910509622A CN 112086291 A CN112086291 A CN 112086291A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 530
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 239000010416 ion conductor Substances 0.000 claims abstract description 217
- 239000007787 solid Substances 0.000 claims description 70
- 239000000463 material Substances 0.000 claims description 46
- 239000007772 electrode material Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 8
- 150000002500 ions Chemical class 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 6
- 229920000620 organic polymer Polymers 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229910021385 hard carbon Inorganic materials 0.000 claims description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000005518 polymer electrolyte Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 3
- 238000002955 isolation Methods 0.000 claims 2
- 238000009413 insulation Methods 0.000 claims 1
- 238000004146 energy storage Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 44
- 230000010220 ion permeability Effects 0.000 description 8
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/10—Multiple hybrid or EDL capacitors, e.g. arrays or modules
- H01G11/12—Stacked hybrid or EDL capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/52—Separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/66—Current collectors
- H01G11/72—Current collectors specially adapted for integration in multiple or stacked hybrid or EDL capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses an all-solid-state capacitor cell, which comprises at least one first capacitor electrode and at least one second capacitor electrode; the first capacitor electrode and the second capacitor electrode are arranged in a staggered mode; the first capacitor electrode is compounded with a solid-state ion conductor I, the second capacitor electrode is compounded with a solid-state ion conductor II, the solid-state ion conductor I and the solid-state ion conductor II which are positioned between the adjacent first capacitor electrode and the adjacent second capacitor electrode are compounded together to form a solid-state ion conductor, or the solid-state ion conductor I and the solid-state ion conductor II which are positioned between the adjacent first capacitor electrode and the adjacent second capacitor electrode are fused together to form a solid-state ion conductor. The invention also discloses an all-solid-state laminated capacitor cell and an all-solid-state composite capacitor cell. The all-solid-state capacitor cell and the all-solid-state laminated capacitor cell can meet the energy storage requirement, effectively enhance the binding force and the wettability between the solid-state ion conductor and the electrode, and effectively reduce the interface resistance between the solid-state ion conductor and the electrode.
Description
Technical Field
The invention belongs to the technical field of energy storage equipment, and particularly relates to an all-solid-state capacitor cell, a laminated capacitor cell and a composite capacitor cell.
Background
Solid state batteries are a battery technology. Unlike lithium ion batteries and lithium ion polymer batteries that are currently in widespread use, a solid-state battery is a battery that uses a solid electrode and a solid electrolyte. The traditional liquid lithium battery is also called as a rocking chair type battery by scientists visually, wherein two ends of the rocking chair are provided with the positive pole and the negative pole of the battery, and the middle part of the rocking chair is provided with electrolyte (liquid). And the lithium ions run back and forth at the two ends of the rocking chair just like excellent athletes, and the charging and discharging process of the battery is completed in the movement process of the lithium ions from the first capacitor electrode to the second capacitor electrode and then to the first capacitor electrode. The principle of the solid-state battery is the same as that of the solid-state battery, but the electrolyte is solid, and the density and the structure of the solid-state battery can enable more charged ions to be gathered at one end to conduct larger current, so that the battery capacity is improved. Therefore, the solid-state battery will become smaller in volume for the same amount of power. Moreover, because the solid-state battery has no electrolyte, the sealing is easier, and when the solid-state battery is used on large-scale equipment such as automobiles, cooling pipes, electronic controls and the like do not need to be additionally arranged, so that the cost is saved, and the weight can be effectively reduced.
Although the existing solid-state battery can meet the use requirements to a certain extent, the following defects still exist:
1) the binding force between the solid-state ion conductor and the electrode is insufficient;
2) the wettability between the solid-state ion conductor and the electrode is poor;
3) the interface resistance between the solid-state ion conductor and the electrode is large.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an all-solid-state capacitor cell, a stacked capacitor cell, and a composite capacitor cell, which can not only meet the energy storage requirement, but also effectively enhance the bonding force and wettability between the solid-state ion conductor and the electrode, effectively reduce the interface resistance between the solid-state ion conductor and the electrode, and improve the ion permeability.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention firstly provides an all-solid-state capacitor cell,
comprising at least one first capacitive electrode and at least one second capacitive electrode;
the first capacitor electrode and the second capacitor electrode are arranged in a staggered mode;
the first capacitor electrode is compounded with a solid-state ion conductor I, the second capacitor electrode is compounded with a solid-state ion conductor II, the solid-state ion conductor I and the solid-state ion conductor II which are positioned between the adjacent first capacitor electrode and the adjacent second capacitor electrode are compounded together to form a solid-state ion conductor, or the solid-state ion conductor I and the solid-state ion conductor II which are positioned between the adjacent first capacitor electrode and the adjacent second capacitor electrode are fused together to form a solid-state ion conductor.
Further, the number N of the first capacitor electrodes and the number M of the second capacitor electrodes satisfy:
m ═ N, or, | M-N | ═ 1.
Furthermore, a first groove is formed in the side face, provided with the solid-state ion conductor I, of the first capacitor electrode, and one side, facing the first capacitor electrode, of the solid-state ion conductor I is embedded into the first groove; and/or the presence of a gas in the gas,
and a second groove is formed in the side surface, provided with the solid ion conductor II, of the second capacitor electrode, and one side, facing the second capacitor electrode, of the solid ion conductor II is embedded into the second groove.
Further, the width of the first groove is gradually increased along the direction from the groove bottom to the notch;
the width of the second groove is gradually increased along the direction of the groove bottom pointing to the notch.
Furthermore, first embedding holes are formed in the side face, provided with the solid-state ion conductor I, of the first capacitor electrode in an array mode, and one side, facing the first capacitor electrode, of the solid-state ion conductor I is embedded into the first embedding holes; and/or the presence of a gas in the gas,
and the second capacitor electrode is provided with second embedded holes in an array manner on the side surface of the solid ion conductor II, and one side of the solid ion conductor II facing the second capacitor electrode is embedded into the second embedded holes.
Furthermore, in two radial sections I obtained by cutting any two radial sections perpendicular to the axis of the first embedding hole on the same first embedding hole, the geometric dimension of the radial section I on the side close to the bottom of the first embedding hole is smaller than or equal to that of the radial section I on the side close to the hole opening of the first embedding hole;
in two radial sections II obtained by cutting any two radial sections perpendicular to the axis of the second embedded hole on the same second embedded hole, the geometric dimension of the radial section II close to the bottom side of the second embedded hole is smaller than or equal to that of the radial section II close to the orifice side of the second embedded hole.
Further, the first capacitance electrode and the second capacitance electrode are made of one or a mixture of at least two of lithium iron phosphate, ternary materials, sulfur-containing conductive materials, porous carbon layer air capacitance electrodes containing metal or organic materials, layered metal oxide materials, oxygen-containing organic polymer materials, metal lithium, metal sodium, metal aluminum, metal magnesium, metal potassium, graphene, hard carbon, silicon oxide and silicon simple substances;
the solid ion conductor is made of an aqueous polymer or organic polymer electrolyte material.
Further, the first capacitance electrode is made of a mixture of a first capacitance electrode active material and a solid ion conductor material;
the second capacitance electrode is made of a mixture of a second capacitance electrode active material and a solid ion conductor material.
Further, the molar ratio between the solid ion conductor material and the first capacitive electrode active material within the first capacitive electrode is less than or equal to 100%;
the molar ratio between the solid ion conductor material and the second capacitive electrode active material within the second capacitive electrode is less than or equal to 100%.
Further, the first capacitor electrode active material is uniformly distributed in a granular shape, and gaps of the first capacitor electrode active material granules are filled with the solid ion conductor material;
the second capacitor electrode active material is uniformly distributed in a granular shape, and gaps of the second capacitor electrode active material granules are filled with the solid ion conductor material.
The invention also provides an all-solid-state laminated capacitor cell,
the capacitor comprises a soft package body, wherein at least two all-solid-state capacitor cells as claimed in any one of claims 1 to 10 are compounded together in the soft package body;
in two adjacent all-solid-state capacitor cells, a first capacitor electrode at one end of the all-solid-state capacitor cell is adjacent to a second capacitor electrode at the other end of the all-solid-state capacitor cell, and a bipolar current collector plate which is electrically conductive and ion-isolated is arranged between the first capacitor electrode and the second capacitor electrode which are adjacent.
The invention also provides an all-solid-state composite capacitor cell,
the capacitor comprises a soft package body, wherein at least two all-solid-state capacitor cells as claimed in any one of claims 1 to 10 are compounded together in the soft package body;
in two adjacent all-solid-state capacitance cells,
the first capacitor electrode at one end part of the all-solid-state capacitor cell is arranged adjacent to the first capacitor electrode at the other end part of the all-solid-state capacitor cell, and the two adjacent first capacitor electrodes are combined together or an electronically conductive and ion-isolated bipolar collector plate is arranged between the two adjacent first capacitor electrodes or an electronically insulated and ion-isolated insulating diaphragm is arranged between the two adjacent first capacitor electrodes;
or the like, or, alternatively,
the second capacitor electrode of one all-solid-state capacitor cell end is arranged adjacent to the second capacitor electrode of the other all-solid-state capacitor cell end; the two adjacent second capacitor electrodes are compounded together, or a bipolar current collecting plate which is electrically conductive and is isolated by ions is arranged between the two adjacent second capacitor electrodes, or an insulating diaphragm which is electrically insulating and is isolated by ions is arranged between the two adjacent second capacitor electrodes;
or the like, or, alternatively,
the first capacitor electrode at one end part of the all-solid-state capacitor cell is adjacent to the second capacitor electrode at the other end part of the all-solid-state capacitor cell, and an insulating diaphragm which is electronically insulated and ion-isolated is arranged between the adjacent first capacitor electrode and the adjacent second capacitor electrode.
The invention has the beneficial effects that:
according to the all-solid-state capacitor cell, the solid-state ion conductor I and the first capacitor electrode are compounded into a whole, the solid-state ion conductor II and the second capacitor electrode are compounded into a whole, on the basis of ensuring the binding force and the wettability between the solid-state ion conductor I and the first capacitor electrode and between the solid-state ion conductor II and the second capacitor electrode, the first capacitor electrode body and the second capacitor electrode body are compounded together, so that the solid-state ion conductor I and the solid-state ion conductor II are compounded together to form the solid-state ion conductor, or the solid-state ion conductor I and the solid-state ion conductor II are fused together to form the solid-state ion conductor, therefore, the binding degree and the wettability between the solid-state ion conductor and the electrodes can be effectively enhanced, the interface resistance between the solid-state ion conductor and the electrodes is reduced, and the ion permeability is improved.
The first capacitor electrode is made of a mixture of a first capacitor electrode active material and a solid ion conductor material, and the solid ion conductor material mixed in the first capacitor electrode is communicated with the solid ion conductor I compounded on the side surface of the first capacitor electrode in an ion-conducting manner, so that the ion permeability can be effectively improved, and the interface resistance between the solid ion conductor and the electrode is reduced;
similarly, the second capacitor electrode is made of a mixture of a second capacitor electrode active material and a solid ion conductor material, and the solid ion conductor material mixed in the second capacitor electrode is communicated with the solid ion conductor II compounded on the side surface of the second capacitor electrode in an ion conduction manner, so that the ion permeability can be effectively improved, and the interface resistance between the solid state and the electrode is reduced.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
fig. 1 is a schematic structural diagram of an all-solid-state capacitor cell in embodiment 1 of the present invention, specifically, a schematic structural diagram when a first capacitor electrode and a second capacitor electrode are separated;
FIG. 2 is a schematic structural diagram of the first capacitor electrode and the second capacitor electrode after being combined together;
FIG. 3 is detail A of FIG. 2;
FIG. 4 is a schematic view of the microstructure of the first capacitive electrode;
FIG. 5 is a schematic view of the microstructure of the second capacitive electrode;
fig. 6 is a schematic structural diagram of an all-solid-state capacitor cell in embodiment 2 of the present invention, specifically, a schematic structural diagram when a first capacitor electrode and a second capacitor electrode are separated;
FIG. 7 is a schematic structural diagram of the first capacitor electrode and the second capacitor electrode after being combined together;
FIG. 8 is detail B of FIG. 5;
fig. 9 is a schematic structural diagram of an all-solid-state capacitor cell in embodiment 3 of the present invention, specifically, a schematic structural diagram when a first capacitor electrode and a second capacitor electrode are separated;
FIG. 10 is a schematic structural diagram of the first capacitor electrode and the second capacitor electrode after being combined together;
FIG. 11 is detail C of FIG. 8;
fig. 12 is a schematic structural diagram of an all-solid-state capacitor cell in embodiment 4 of the present invention; specifically, the structure schematic diagram is that the number of the first capacitor electrodes is equal to that of the second capacitor electrodes;
FIG. 13 is a schematic structural diagram illustrating a case where a difference between the number of first capacitor electrodes and the number of second capacitor electrodes is equal to 1;
FIG. 14 is a schematic structural diagram illustrating a case where a difference between the number of the second capacitor electrodes and the number of the first capacitor electrodes is equal to 1;
fig. 15 is a first structural schematic diagram of an all-solid-state stacked capacitor cell according to the present invention, specifically, a structural schematic diagram when the number N of first capacitor electrodes in the all-solid-state stacked capacitor cell is equal to the number M of second capacitor electrodes in the all-solid-state stacked capacitor cell, where a first capacitor electrode tab and a second capacitor electrode tab are respectively disposed only at two ends of the all-solid-state stacked capacitor cell;
fig. 16 is a schematic structural diagram of an all-solid-state stacked capacitor cell when all the first capacitor electrodes are provided with first capacitor electrode tabs and all the second capacitor electrodes are provided with second capacitor electrode tabs;
fig. 17 is a schematic structural diagram of an all-solid-state stacked capacitor cell according to a second embodiment of the present invention, specifically, a schematic structural diagram when an absolute value of a difference between a number N of first capacitor electrodes and a number M of second capacitor electrodes in the all-solid-state stacked capacitor cell is equal to 1;
fig. 18 is a schematic structural diagram of an all-solid-state composite capacitor cell in embodiment 6 of the present invention, specifically, a first structural diagram of an all-solid-state composite capacitor cell formed by using at least two all-solid-state capacitor cells in embodiment 1;
fig. 19 is a schematic diagram of a second structure of an all-solid composite capacitor cell formed by at least two all-solid capacitor cells in example 1;
fig. 20 is a schematic diagram of a first structure when at least two all-solid-state capacitor cells of embodiment 2 are combined together;
fig. 21 is a schematic diagram of a first structure when at least two all-solid-state capacitor cells of embodiment 3 are combined together;
fig. 22 is a second structural diagram illustrating at least two all-solid-state capacitor cells combined in example 2;
fig. 23 is a second structural diagram illustrating at least two all-solid-state capacitor cells combined in example 3;
fig. 24 is a schematic structural diagram of an all-solid-state composite capacitor cell in embodiment 7 of the present invention, specifically, a schematic structural diagram when at least two all-solid-state capacitor cells in embodiment 1 are combined together;
fig. 25 is a schematic structural diagram of at least two all-solid-state capacitor cells 100 in embodiment 2 and embodiment 3 when they are combined together.
Description of reference numerals:
10-a first capacitive electrode; 11-solid ion conductor i; 12-a first groove; 13-a first capacitive electrode tab;
20-a second capacitive electrode; 21-solid ion conductor ii; 22-a second groove; 23-a second capacitive electrode tab;
30-a solid-state ion conductor; 31-a solid ion conductor material;
100-all-solid-state capacitor cells; 101-soft bag body; 102-a bipolar collector plate; 103-soft bag body; 104-bipolar collector plate; 105-an insulating membrane; 106-insulating diaphragm.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Example 1
As shown in fig. 1, a schematic structural diagram of an all-solid-state capacitor cell in embodiment 1 of the present invention is shown. The all-solid-state capacitor cell of the embodiment includes at least one first capacitor electrode 10 and at least one second capacitor electrode 20, and the first capacitor electrode 10 and the second capacitor electrode 20 are arranged in a staggered manner.
The first capacitor electrode 10 is compounded with a solid-state ion conductor I11, the second capacitor electrode 20 is compounded with a solid-state ion conductor II 21, the solid-state ion conductor I11 and the solid-state ion conductor II 21 which are positioned between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20 are compounded together to form a solid-state ion conductor 30, or the solid-state ion conductor I11 and the solid-state ion conductor II 21 which are positioned between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20 are fused together to form the solid-state ion conductor 30. Specifically, in the present embodiment, the solid-state ion conductor i 11 and the solid-state ion conductor ii 21 located between the adjacent first capacitor electrode 10 and the second capacitor electrode 20 are fused together to form the solid-state ion conductor 30, and the solid-state ion conductor i 11 and the solid-state ion conductor ii 21 in the present embodiment are made of a solid-state ion conductor material of the same material.
Further, the number N of the first capacitor electrodes 10 and the number M of the second capacitor electrodes 20 satisfy:
m ═ N, or, | M-N | ═ 1.
Specifically, the number N of the first capacitor electrodes 10 and the number M of the second capacitor electrodes 20 in this embodiment satisfy: m ═ N ═ 1.
Further, the first capacitor electrode 10 of the present embodiment is provided with a first groove 12 on the side surface provided with the solid-state ion conductor i 11, and the side of the solid-state ion conductor i 11 facing the first capacitor electrode 10 is embedded in the first groove 12. And a second groove 22 is formed in the side surface, provided with the solid-state ion conductor II 21, of the second capacitor electrode 20, and one side, facing the second capacitor electrode 20, of the solid-state ion conductor II 21 is embedded into the second groove 22. Specifically, the first and second grooves 12 and 22 are respectively formed on the side surfaces of the first and second capacitor electrodes 10 and 20 facing each other. The first groove 12 and the second groove 22 of the present embodiment may be configured in various structures, such as a wave groove, a triangular sawtooth groove, a trapezoidal groove, a V-shaped groove, a rectangular groove, and the like. In order to increase the bonding area of the solid-state ion conductor i 11 and the side surface of the first capacitor electrode 10, the width of the first groove 12 of the present embodiment is gradually increased along the direction from the groove bottom to the notch. Similarly, in order to increase the bonding area between the solid-state ion conductor ii 21 and the side surface of the second capacitor electrode 20, the width of the second groove 22 gradually increases along the direction from the groove bottom to the notch. The first groove 12 and the second groove 22 of the present embodiment are both provided as wavy grooves. By arranging the first groove 12 on the first capacitor electrode 10, the bonding strength and the wettability between the first capacitor electrode 10 and the solid-state ion conductor I11 can be effectively enhanced, and the interface resistance between the first capacitor electrode 10 and the solid-state ion conductor I11 is reduced. Similarly, by arranging the second groove 22 on the second capacitor electrode 20, the bonding strength and the wettability between the second capacitor electrode 20 and the solid-state ion conductor ii 21 are enhanced, and the interface resistance between the second capacitor electrode 20 and the solid-state ion conductor ii 21 is reduced.
In addition, first embedding holes can be formed in an array on the side face, provided with the solid-state ion conductor I11, of the first capacitor electrode 10, and the side, facing the first capacitor electrode 10, of the solid-state ion conductor I11 is embedded into the first embedding holes. Specifically, in two radial sections I cut on the same first embedding hole by any two radial sections perpendicular to the axis of the first embedding hole, the geometric dimension of the radial section I on one side close to the bottom of the first embedding hole is smaller than or equal to that of the radial section I on one side close to the hole opening of the first embedding hole. Of course, the second embedding holes may also be arranged in an array on the side surface of the second capacitor electrode 20 where the solid-state ion conductor ii 21 is arranged, and the side of the solid-state ion conductor ii 21 facing the second capacitor electrode 20 is embedded in the second embedding holes. In two radial sections II obtained by cutting any two radial sections perpendicular to the axis of the second embedded hole on the same second embedded hole, the geometric dimension of the radial section II close to the bottom side of the second embedded hole is smaller than or equal to that of the radial section II close to the hole opening side of the second embedded hole. The first embedding hole and the second embedding hole can adopt various structures, such as a conical embedding hole, a square conical embedding hole, a horn mouth-shaped embedding hole and the like, and the description is not repeated.
Specifically, in some embodiments, the first groove 12 or the first embedding hole may be provided only on the side of the first capacitor electrode 10 where the solid-state ion conductor i 11 is provided, or the first groove 12 and the first embedding hole may be provided on the side of the first capacitor electrode 10 where the solid-state ion conductor i 11 is provided at the same time. Similarly, in some embodiments, the second groove 22 or the second embedding hole may be provided only on the side of the second capacitor electrode 20 where the solid-state ion conductor ii 21 is provided, or the second groove 22 and the second embedding hole may be provided on the side of the second capacitor electrode 20 where the solid-state ion conductor ii 21 is provided at the same time.
Specifically, the first capacitance electrode 10 and the second capacitance electrode 20 are made of one or a mixture of at least two of lithium iron phosphate, a ternary material, a sulfur-containing conductive material, a porous carbon layer air capacitance electrode containing metal or organic material, a layered metal oxide material, an oxygen-containing organic polymer material, metal lithium, metal sodium, metal aluminum, metal magnesium, metal potassium, graphene, hard carbon, silicon oxide and a silicon simple substance; the solid ion conductor 30 is made of an aqueous polymer or an organic polymer electrolyte material.
Further, the first capacitive electrode 10 is made of a mixture of the first capacitive electrode active material 14 and the solid ion conductor material 31. And in the first capacitance electrode, the molar ratio between the solid ion conductor material and the first capacitance electrode active material is less than or equal to 100%. On the microstructure, the first capacitor electrode active material is uniformly distributed in a granular shape, and gaps of the first capacitor electrode active material granules are filled with a solid ion conductor material, as shown in fig. 4. The first capacitor electrode is made of a mixture of the first capacitor electrode active material and the solid ion conductor material, and the solid ion conductor material mixed in the first capacitor electrode is communicated with the solid ion conductor I compounded on the side face of the first capacitor electrode in an ion-conducting manner, so that the ion permeability can be effectively improved, and the interface resistance between the solid ion conductor and the electrode is reduced.
The second capacitive electrode 20 is made of a mixture of a second capacitive electrode active material 24 and a solid ion conductor material 31. And in the second capacitance electrode, the molar ratio between the solid ion conductor material and the second capacitance electrode active material is less than or equal to 100%. On the microstructure, the second capacitor electrode active material is uniformly distributed in a granular shape, and gaps of the second capacitor electrode active material granules are filled with a solid ion conductor material, as shown in fig. 5. The second capacitor electrode is made of a mixture of a second capacitor electrode active material and a solid ion conductor material, and the solid ion conductor material mixed in the second capacitor electrode is communicated with the solid ion conductor II compounded on the side surface of the second capacitor electrode in an ion conduction mode, so that the ion permeability can be effectively improved, and the interface resistance between the solid ion conductor and the electrode is reduced.
The solid ion conductor material 31 of the present embodiment is the same as the solid ion conductor 30, and certainly, the solid ion conductor material 31 and the solid ion conductor 30 may be different from each other, as long as the wettability between the solid ion conductor 30 and the first and second capacitor electrodes 10 and 20 can be enhanced, the interfacial resistance between the solid ion conductor 30 and the first and second capacitor electrodes 10 and 20 can be reduced, and the ion permeability can be increased.
The all-solid-state capacitor cell of the embodiment is characterized in that a solid-state ion conductor I and a first capacitor electrode are combined into a whole, a solid-state ion conductor II and a second capacitor electrode are combined into a whole, on the basis of ensuring the binding force and the wettability between the solid-state ion conductor I and the first capacitor electrode and between the solid-state ion conductor II and the second capacitor electrode, the first capacitor electrode body and the second capacitor electrode body are combined together, so that the solid-state ion conductor I and the solid-state ion conductor II are combined together to form a solid-state ion conductor, or the solid-state ion conductor I and the solid-state ion conductor II are combined together to form a solid-state ion conductor, therefore, the binding degree and the wettability between the solid-state ion conductor and the electrodes can be effectively enhanced, the interface resistance between the solid-state ion conductor and the electrodes is reduced, and the ion permeability is.
Example 2
Fig. 6 is a schematic structural diagram of an all-solid-state capacitor cell in embodiment 2 of the present invention. The all-solid-state capacitor cell of the embodiment includes at least one first capacitor electrode 10 and at least one second capacitor electrode 20, and the first capacitor electrode 10 and the second capacitor electrode 20 are arranged in a staggered manner.
The first capacitor electrode 10 is compounded with a solid-state ion conductor I11, the second capacitor electrode 20 is compounded with a solid-state ion conductor II 21, the solid-state ion conductor I11 and the solid-state ion conductor II 21 which are positioned between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20 are compounded together to form a solid-state ion conductor 30, or the solid-state ion conductor I11 and the solid-state ion conductor II 21 which are positioned between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20 are fused together to form the solid-state ion conductor 30. Specifically, in the present embodiment, the solid-state ion conductor i 11 and the solid-state ion conductor ii 21 located between the adjacent first capacitor electrode 10 and the second capacitor electrode 20 are fused together to form the solid-state ion conductor 30, and the solid-state ion conductor i 11 and the solid-state ion conductor ii 21 in the present embodiment are made of a solid-state ion conductor material of the same material.
Further, the number N of the first capacitor electrodes 10 and the number M of the second capacitor electrodes 20 satisfy:
m ═ N, or, | M-N | ═ 1.
Specifically, in the present embodiment, the number N of the first capacitor electrodes 10 is 1, the number M of the second capacitor electrodes 20 is 2, and two second capacitor electrodes 20 are respectively disposed on both sides of the first capacitor electrode 10. The two second capacitor electrodes 20 of this embodiment can be electrically connected by an internal circuit or an external circuit, which will not be described in detail.
Further, the first capacitor electrode 10 of the present embodiment is provided with a first groove 12 on the side surface provided with the solid-state ion conductor i 11, and the side of the solid-state ion conductor i 11 facing the first capacitor electrode 10 is embedded in the first groove 12. And a second groove 22 is formed in the side surface, provided with the solid-state ion conductor II 21, of the second capacitor electrode 20, and one side, facing the second capacitor electrode 20, of the solid-state ion conductor II 21 is embedded into the second groove 22. Specifically, the solid-state ion conductor i 11 is combined on both sides of the first capacitor electrode 10 in this embodiment, that is, the first groove 12 is disposed on both sides of the first capacitor electrode 10 in this embodiment.
Of course, a first embedding hole may be provided on the side surface of the first capacitor electrode 10 where the solid-state ion conductor i 11 is provided, and a second embedding hole may be provided on the side surface of the second capacitor electrode 20 where the solid-state ion conductor ii 21 is provided, and the specific embodiment is equivalent to that of embodiment 1, and will not be described in detail.
Other structures of this embodiment are the same as those of embodiment 1, and are not described in detail.
Example 3
Fig. 9 is a schematic structural diagram of an all-solid-state capacitor cell in embodiment 3 of the present invention. The all-solid-state capacitor cell of the embodiment includes at least one first capacitor electrode 10 and at least one second capacitor electrode 20, the first capacitor electrode 10 and the second capacitor electrode 20 are alternately disposed, and a solid-state ion conductor 30 is disposed between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20.
The first capacitor electrode 10 is compounded with a solid-state ion conductor I11, the second capacitor electrode 20 is compounded with a solid-state ion conductor II 21, the solid-state ion conductor I11 and the solid-state ion conductor II 21 which are positioned between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20 are compounded together to form a solid-state ion conductor 30, or the solid-state ion conductor I11 and the solid-state ion conductor II 21 which are positioned between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20 are fused together to form the solid-state ion conductor 30. Specifically, in the present embodiment, the solid-state ion conductor i 11 and the solid-state ion conductor ii 21 located between the adjacent first capacitor electrode 10 and the second capacitor electrode 20 are fused together to form the solid-state ion conductor 30, and the solid-state ion conductor i 11 and the solid-state ion conductor ii 21 in the present embodiment are made of a solid-state ion conductor material of the same material.
Further, the number N of the first capacitor electrodes 10 and the number M of the second capacitor electrodes 20 satisfy:
m ═ N, or, | M-N | ═ 1.
Specifically, in the present embodiment, the number N of the first capacitor electrodes 10 is 2, the number M of the second capacitor electrodes 20 is 1, and two first capacitor electrodes 10 are respectively disposed on both sides of the second capacitor electrode 20. The two first capacitor electrodes 10 of this embodiment are electrically connected to each other by an internal circuit or an external circuit.
Further, the first capacitor electrode 10 of the present embodiment is provided with a first groove 12 on the side surface provided with the solid-state ion conductor i 11, and the side of the solid-state ion conductor i 11 facing the first capacitor electrode 10 is embedded in the first groove 12. And a second groove 22 is formed in the side surface, provided with the solid-state ion conductor II 21, of the second capacitor electrode 20, and one side, facing the second capacitor electrode 20, of the solid-state ion conductor II 21 is embedded into the second groove 22. Specifically, the solid ion conductor ii 21 is combined on both sides of the second capacitor electrode 20 in this embodiment.
Of course, a first embedding hole may be provided on the side surface of the first capacitor electrode 10 where the solid-state ion conductor i 11 is provided, and a second embedding hole may be provided on the side surface of the second capacitor electrode 20 where the solid-state ion conductor ii 21 is provided, and the specific embodiment is equivalent to that of embodiment 1, and will not be described in detail.
Other structures of this embodiment are the same as those of embodiment 1, and are not described in detail.
Example 4
Fig. 12 is a schematic structural diagram of an all-solid-state capacitor cell in embodiment 4 of the present invention. The all-solid-state capacitor cell of the embodiment includes at least one first capacitor electrode 10 and at least one second capacitor electrode 20, the first capacitor electrode 10 and the second capacitor electrode 20 are alternately disposed, and a solid-state ion conductor 30 is disposed between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20.
The first capacitor electrode 10 is compounded with a solid-state ion conductor I11, the second capacitor electrode 20 is compounded with a solid-state ion conductor II 21, the solid-state ion conductor I11 and the solid-state ion conductor II 21 which are positioned between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20 are compounded together to form a solid-state ion conductor 30, or the solid-state ion conductor I11 and the solid-state ion conductor II 21 which are positioned between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20 are fused together to form the solid-state ion conductor 30. Specifically, in the present embodiment, the solid-state ion conductor i 11 and the solid-state ion conductor ii 21 located between the adjacent first capacitor electrode 10 and the second capacitor electrode 20 are fused together to form the solid-state ion conductor 30, and the solid-state ion conductor i 11 and the solid-state ion conductor ii 21 in the present embodiment are made of a solid-state ion conductor material of the same material.
Further, the number N of the first capacitor electrodes 10 and the number M of the second capacitor electrodes 20 satisfy:
m ═ N, or, | M-N | ═ 1.
Specifically, in the present embodiment, the number N of the first capacitor electrodes 10 is greater than or equal to 2, the number M of the second capacitor electrodes 20 is greater than or equal to 2, and the number of the first capacitor electrodes 10 and the number of the second capacitor electrodes 20 may be set according to actual needs, which is not described repeatedly. All the second capacitor electrodes 20 of the present embodiment may be electrically connected to each other by an internal circuit or an external circuit, and all the first capacitor electrodes 10 may be electrically connected to each other by an internal circuit or an external circuit.
When N is equal to M, the two electrodes at the two ends are the first capacitor electrode 10 and the second capacitor electrode 20, respectively, as shown in fig. 12;
when N-M is 1, both electrodes at both ends are the first capacitance electrode 10, as shown in fig. 13;
when M-N is 1, both electrodes at both ends are the second capacitance electrode 20, as shown in fig. 14.
Further, the first capacitor electrode 10 of the present embodiment is provided with a first groove 12 on the side surface provided with the solid-state ion conductor i 11, and the side of the solid-state ion conductor i 11 facing the first capacitor electrode 10 is embedded in the first groove 12. And a second groove 22 is formed in the side surface, provided with the solid-state ion conductor II 21, of the second capacitor electrode 20, and one side, facing the second capacitor electrode 20, of the solid-state ion conductor II 21 is embedded into the second groove 22. Specifically, both sides of the first capacitor electrode 10 located at the middle position are compounded with the solid-state ion conductor i 11, that is, both sides of the first capacitor electrode 10 located at the middle position are provided with the first grooves 12. Similarly, the two sides of the second capacitor electrode 20 in the middle are both compounded with the solid ion conductor ii 21, that is, the two sides of the second capacitor electrode 20 in the middle are both provided with the second grooves 22.
When the first capacitor electrode 10 is located at the end portion, a solid-state ion conductor i 11 is compounded on a side surface of the first capacitor electrode 10 located at the end portion, which faces the other end of the all-solid-state capacitor cell, that is, a first groove 12 is formed on the side surface of the first capacitor electrode 10. Similarly, when the second capacitor electrode 20 is located at the end, the solid-state ion conductor ii 21 is compounded on the side surface of the second capacitor electrode 20 facing the other end of the all-solid-state capacitor cell, that is, the side surface of the second capacitor electrode 20 is provided with the second groove 22.
Of course, a first embedding hole may be provided on the side surface of the first capacitor electrode 10 where the solid-state ion conductor i 11 is provided, and a second embedding hole may be provided on the side surface of the second capacitor electrode 20 where the solid-state ion conductor ii 21 is provided, and the specific embodiment is equivalent to that of embodiment 1, and will not be described in detail.
Other structures of this embodiment are the same as those of embodiment 1, and are not described in detail.
Example 5
Fig. 15 is a schematic structural diagram of an all-solid-state stacked capacitor cell according to the present invention. The all-solid-state stacked capacitor cell of the present embodiment includes a soft package body 101, and at least two combined all-solid-state capacitor cells 100 of the present embodiment are disposed in the soft package body 101. Specifically, the number of all-solid-state capacitor cells 100 arranged in the soft package body 101 may be 2, 3, or more than 3, which will not be described in detail.
Specifically, in two adjacent all-solid-state capacitor cells 100, a first capacitor electrode 10 at an end of one all-solid-state capacitor cell 100 is disposed adjacent to a second capacitor electrode 20 at an end of the other all-solid-state capacitor cell 100, and an electronically conductive but ionically isolated bipolar current collecting plate 102 is disposed between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20. By combining a plurality of all-solid-state capacitor cells 100 into an all-solid-state stacked capacitor cell, the output voltage of the all-solid-state stacked capacitor cell can be effectively increased.
The two ends of the all-solid-state laminated capacitor cell of this embodiment are respectively provided with a first capacitor electrode tab 13 and a second capacitor electrode tab 23. Of course, a first capacitor electrode tab 13 may also be disposed on the first capacitor electrode 10 of each all-solid-state capacitor battery cell 100, and a second capacitor electrode tab 23 is disposed on the second capacitor electrode 20 of each all-solid-state capacitor battery cell 100, so that an external circuit is used to perform electric energy output control on the all-solid-state stacked capacitor battery cell, as shown in fig. 16.
Specifically, the structure of the all-solid-state stacked capacitor cell of the embodiment has a plurality of variations:
as shown in fig. 15 and 16, a schematic structural diagram of the all-solid capacitor cell 100 in embodiment 1 is adopted to be combined into an all-solid laminated capacitor cell, in the all-solid laminated capacitor cell, the number of the all-solid capacitor cells 100 may be 2, 3, or more than 3, and in two adjacent all-solid capacitor cells 100, a first capacitor electrode 10 at an end of one all-solid capacitor cell 100 is disposed adjacent to a second capacitor electrode 20 at an end of another all-solid capacitor cell 100, and an electronically conductive but ionically isolated bipolar current collecting plate 102 is disposed between the first capacitor electrode 10 and the second capacitor electrode 20.
By analogy, when the number N of the first capacitor electrodes 10 in the all-solid-state capacitor cells 100 and the number M of the second capacitor electrodes 20 satisfy that M is equal to or greater than 1, all the all-solid-state capacitor cells 100 are stacked in sequence at this time, in two adjacent all-solid-state capacitor cells 100, the first capacitor electrode 10 at the end of one all-solid-state capacitor cell 100 is adjacent to the second capacitor electrode 20 at the end of the other all-solid-state capacitor cell 100, and an electronically conductive but ionically isolated bipolar current collecting plate 102 is disposed between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20.
As shown in fig. 17, a schematic structural diagram of the all-solid-state capacitor cell 100 in example 2 and the all-solid-state capacitor cell 100 in example 3 when they are combined into an all-solid-state laminated capacitor cell, in order to realize a structure in which the first capacitor electrode 10 at the end of one all-solid-state capacitor cell 100 is disposed adjacent to the second capacitor electrode 20 at the end of the other all-solid-state capacitor cell 100 in two adjacent all-solid-state capacitor cells 100, the all-solid-state capacitor cell 100 in example 2 and the all-solid-state capacitor cell 100 in example 3 are alternately laminated, so that two adjacent all-solid-state capacitor cells 100 may be disposed such that the first capacitor electrode 10 at the end of one all-solid-state capacitor cell 100 is disposed adjacent to the second capacitor electrode 20 at the end of the other all-solid-state capacitor cell 100, and an electronically conductive, but ionically isolated, bipolar current-collecting current-flows are disposed between the adjacent first capacitor electrode 10 and the second capacitor electrode 20 A plate 102.
By analogy, when the number N of the first capacitor electrodes 10 and the number M of the second capacitor electrodes 20 in the all-solid-state capacitor cell 100 satisfy | M-N | ═ 1, and the number N of the first capacitor electrodes is greater than or equal to 1, and the number M of the second capacitor electrodes is greater than or equal to 1, in two adjacent all-solid-state capacitor cells 100 at this time, the number N of the first capacitor electrodes and the number M of the second capacitor electrodes of one all-solid-state capacitor cell 100 satisfy N-M ═ 1, and the number N of the first capacitor electrodes and the number M of the second capacitor electrodes of the other all-solid-state capacitor cell 100 satisfy M-N ═ 1, so as to ensure that in the two adjacent all-solid-state capacitor cells 100, the first capacitor electrode 10 at the end of one all-solid-state capacitor cell 100 is adjacent to the second capacitor electrode 20 at the end of the other all-solid-state capacitor cell 100, and an electronically conductive and ionically isolated bipolar current collection is disposed between the first capacitor electrode 10 and the second capacitor electrode 20 A plate 102.
Of course, when the number N of the first capacitor electrodes 10 and the number M of the second capacitor electrodes 20 in the all-solid-state capacitor cell 100 satisfy | M-N | ═ 1, the number N of the first capacitor electrodes is greater than or equal to 1, and the number M of the second capacitor electrodes is greater than or equal to 1, in the all-solid-state capacitor cell 100 including two types of structures, where N is equal to 1 between the first capacitor electrode number N and the second capacitor electrode number M of one type of all-solid-state capacitor cell 100, M is equal to 1 between the first capacitor electrode number N and the second capacitor electrode number M of another type of all-solid-state capacitor cell 100, between the two types of all-solid-state capacitor cells 100, at least one all-solid-state capacitor cell 100 satisfying N is stacked between the first capacitor electrode number N and the second capacitor electrode number M, and only two adjacent all-solid-state capacitor cells 100 need to be ensured, the first capacitor electrode 10 at the end of one all-solid capacitor cell 100 is adjacent to the second capacitor electrode 20 at the end of the other all-solid capacitor cell 100, and an electronically conductive and ionically isolated bipolar current collecting plate 102 is disposed between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20, which will not be described in detail.
Example 6
Fig. 18 is a schematic structural diagram of an all-solid-state composite capacitor cell in embodiment 6 of the present invention. The all-solid-state composite capacitor cell of the embodiment includes a soft package body 103, and at least two all-solid-state capacitor cells 100 as described above are combined together in the soft package body 103.
Specifically, in two adjacent all-solid-state capacitor cells 100, a first capacitor electrode 10 at an end of one of the all-solid-state capacitor cells 100 is disposed adjacent to a first capacitor electrode 10 at an end of the other all-solid-state capacitor cell 100, the two adjacent first capacitor electrodes 10 are combined together, or an electronically conductive and ionically isolated bipolar current collecting plate 104 is disposed between the two adjacent first capacitor electrodes 10, or an electronically insulating and ionically isolated insulating diaphragm 105 is disposed between the two adjacent first capacitor electrodes 10; or, the second capacitance electrode 20 at the end of one of the all-solid-state capacitance cells 100 is disposed adjacent to the second capacitance electrode 20 at the end of another one of the all-solid-state capacitance cells 100; the two adjacent second capacitance electrodes 20 are combined together, or an electronically conductive and ionically isolated bipolar current collecting plate 104 is arranged between the two adjacent second capacitance electrodes 20, or an electronically insulating and ionically isolated insulating diaphragm 105 is arranged between the two adjacent second capacitance electrodes 20.
As shown in fig. 18, which is a schematic structural diagram of the case where at least two all-solid-state capacitor cells 100 in embodiment 1 are combined together, in two adjacent solid-state battery cells 100, a first capacitor electrode 10 at an end of one all-solid-state capacitor cell 100 is disposed adjacent to a first capacitor electrode 10 at an end of another all-solid-state capacitor cell 100, and the two adjacent first capacitor electrodes 10 are combined together; or, the second capacitance electrode 20 at the end of one of the all-solid-state capacitance cells 100 is disposed adjacent to the second capacitance electrode 20 at the end of another one of the all-solid-state capacitance cells 100; the adjacent two second capacitance electrodes 20 are combined together.
As shown in fig. 19, which is a schematic structural diagram of the at least two all-solid-state capacitor cells 100 in example 1 when they are combined together, in two adjacent solid-state battery cells 100, a first capacitor electrode 10 at an end of one all-solid-state capacitor cell 100 is disposed adjacent to a first capacitor electrode 10 at an end of another all-solid-state capacitor cell 100, and an electronically-conductive and ionically-isolated bipolar current collecting plate 104 is disposed between the two adjacent first capacitor electrodes 10, or an electronically-insulating and ionically-isolated insulating diaphragm 105 is disposed between the two adjacent first capacitor electrodes 10; or, the second capacitance electrode 20 at the end of one of the all-solid-state capacitance cells 100 is disposed adjacent to the second capacitance electrode 20 at the end of another one of the all-solid-state capacitance cells 100; an electronically conductive and ionically isolated bipolar current collecting plate 104 is disposed between the two adjacent second capacitance electrodes 20, or an electronically insulating and ionically isolated insulating membrane 105 is disposed between the two adjacent second capacitance electrodes 20.
By analogy, when the number N of the first capacitor electrodes 10 and the number M of the second capacitor electrodes 20 in the solid-state battery cell 100 satisfy N ═ M, at least two solid-state battery cells 100 may be combined together to form an all-solid-state composite capacitor cell in the manners shown in fig. 18 and fig. 19.
Fig. 20 is a schematic structural diagram of at least two all-solid-state capacitor cells 100 in embodiment 2 when they are combined together. In two adjacent solid-state battery cells 100, the second capacitor electrode 20 at the end of one all-solid-state capacitor cell 100 is adjacent to the second capacitor electrode 20 at the end of the other all-solid-state capacitor cell 100; the adjacent two second capacitance electrodes 20 are combined together.
Fig. 21 is a schematic structural diagram of at least two all-solid-state capacitor cells 100 in embodiment 3 when they are combined together. In two adjacent solid-state battery cells 100, the second capacitor electrode 20 at the end of one all-solid-state capacitor cell 100 is adjacent to the second capacitor electrode 20 at the end of the other all-solid-state capacitor cell 100; the adjacent two second capacitance electrodes 20 are combined together.
Fig. 22 is a schematic structural diagram of at least two all-solid-state capacitor cells 100 in embodiment 2 when they are combined together. In two adjacent solid-state battery cells 100, the second capacitor electrode 20 at the end of one all-solid-state capacitor cell 100 is adjacent to the second capacitor electrode 20 at the end of the other all-solid-state capacitor cell 100; an electronically conductive and ionically isolated bipolar current collecting plate 104 is disposed between the two adjacent second capacitance electrodes 20, or an electronically insulating and ionically isolated insulating membrane 105 is disposed between the two adjacent second capacitance electrodes 20.
Fig. 23 is a schematic structural diagram of at least two all-solid-state capacitor cells 100 in embodiment 3 when they are combined together. In two adjacent solid-state battery cells 100, the second capacitor electrode 20 at the end of one all-solid-state capacitor cell 100 is adjacent to the second capacitor electrode 20 at the end of the other all-solid-state capacitor cell 100; an electronically-insulating and ionically-isolating bipolar current collecting plate 104 is disposed between the two adjacent second capacitance electrodes 20 or an electronically-insulating and ionically-isolating insulating diaphragm 105 is disposed between the two adjacent first capacitance electrodes 10.
By analogy, when the number N of the first capacitor electrodes 10 in the solid-state battery cell 100 and the number M of the second capacitor electrodes 20 satisfy | M-N | ═ 1, at least two solid-state battery cells 100 may be composited together to form an all-solid-state composite capacitor cell in a manner shown in fig. 20 to 23.
In this embodiment, all the first capacitor electrodes 10 of each all-solid-state capacitor cell 100 are provided with first capacitor electrode tabs 13, and all the second capacitor electrodes 20 are provided with second capacitor electrode tabs 23.
Example 7
Fig. 24 is a schematic structural view of an all-solid-state composite capacitor cell in embodiment 7 of the present invention. The all-solid-state composite capacitor cell of the embodiment includes a soft package body 103, and at least two all-solid-state capacitor cells 100 as described above are combined together in the soft package body 103.
In two adjacent all-solid-state capacitor battery cells 100, a first capacitor electrode 10 at an end of one of the all-solid-state capacitor battery cells 100 is disposed adjacent to a second capacitor electrode 20 at an end of the other one of the all-solid-state capacitor battery cells 100, and an insulating diaphragm 106 that is electronically insulated and ion-isolated is disposed between the adjacent first capacitor electrode 10 and the adjacent second capacitor electrode 20, each of the solid-state battery cells 100 can be controlled independently to output electric energy externally, and of course, the plurality of solid-state battery cells 100 can be controlled by an external circuit to output electric energy externally in series, parallel, or series-parallel connection.
Fig. 24 is a schematic structural diagram of at least two all-solid-state capacitor cells 100 in example 1 when they are combined together;
fig. 25 is a schematic structural diagram of at least two all-solid-state capacitor cells 100 in embodiments 2 and 3 when they are combined together.
In this embodiment, all the first capacitor electrodes 10 of each all-solid-state capacitor cell 100 are provided with first capacitor electrode tabs 13, and all the second capacitor electrodes 20 are provided with second capacitor electrode tabs 23.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (12)
1. The utility model provides an all solid-state electric capacity electricity core which characterized in that:
comprising at least one first capacitive electrode (10) and at least one second capacitive electrode (20);
the first capacitance electrode (10) and the second capacitance electrode (20) are arranged in a staggered mode;
the first capacitor electrode (10) is compounded with a solid-state ion conductor I (11), the second capacitor electrode (20) is compounded with a solid-state ion conductor II (21), the solid-state ion conductor I (11) and the solid-state ion conductor II (21) which are positioned between the adjacent first capacitor electrode (10) and the adjacent second capacitor electrode (20) are compounded together to form a solid-state ion conductor (30), or the solid-state ion conductor I (11) and the solid-state ion conductor II (21) which are positioned between the adjacent first capacitor electrode (10) and the adjacent second capacitor electrode (20) are fused together to form the solid-state ion conductor (30).
2. The all-solid-state capacitor cell of claim 1, wherein:
the number N of the first capacitance electrodes (10) and the number M of the second capacitance electrodes (20) satisfy:
m ═ N, or, | M-N | ═ 1.
3. The all-solid-state capacitor cell of claim 1, wherein:
a first groove (12) is formed in the side face, provided with the solid-state ion conductor I (11), of the first capacitor electrode (10), and one side, facing the first capacitor electrode (10), of the solid-state ion conductor I (11) is embedded into the first groove (12); and/or the presence of a gas in the gas,
and a second groove (22) is formed in the side surface, provided with the solid-state ion conductor II (21), of the second capacitor electrode (20), and one side, facing the second capacitor electrode (20), of the solid-state ion conductor II (21) is embedded into the second groove (22).
4. The all-solid-state capacitor cell of claim 3, wherein:
the width of the first groove (12) is gradually increased along the direction from the groove bottom to the notch;
the width of the second groove (22) is gradually increased along the direction of the groove bottom pointing to the notch.
5. The all-solid-state capacitor cell of claim 1, wherein:
first embedding holes are formed in the side face, provided with the solid-state ion conductor I (11), of the first capacitor electrode (10) in an array mode, and one side, facing the first capacitor electrode (10), of the solid-state ion conductor I (11) is embedded into the first embedding holes; and/or the presence of a gas in the gas,
and second embedded holes are formed in the side face, provided with the solid ion conductor II (21), of the second capacitor electrode (20) in an array mode, and one side, facing the second capacitor electrode (20), of the solid ion conductor II (21) is embedded into the second embedded holes.
6. The all-solid-state capacitor cell of claim 5, wherein:
in two radial sections I obtained by cutting any two radial sections perpendicular to the axis of the first embedding hole on the same first embedding hole, the geometric dimension of the radial section I on one side close to the bottom of the first embedding hole is smaller than or equal to that of the radial section I on one side close to the orifice of the first embedding hole;
in two radial sections II obtained by cutting any two radial sections perpendicular to the axis of the second embedded hole on the same second embedded hole, the geometric dimension of the radial section II close to the bottom side of the second embedded hole is smaller than or equal to that of the radial section II close to the orifice side of the second embedded hole.
7. The all-solid-state capacitor cell of claim 1, wherein:
the first capacitance electrode (10) and the second capacitance electrode (20) are made of one or a mixture of at least two of lithium iron phosphate, ternary materials, sulfur-containing conductive materials, porous carbon layer air capacitance electrodes containing metal or organic materials, layered metal oxide materials, oxygen-containing organic polymer materials, metal lithium, metal sodium, metal aluminum, metal magnesium, metal potassium, graphene, hard carbon, silicon oxide and silicon elementary substances;
the solid ion conductor (30) is made of an aqueous polymer or organic polymer electrolyte material.
8. The all-solid-state capacitor cell of any one of claims 1 to 7, wherein:
the first capacitance electrode (10) is made of a mixture of a first capacitance electrode active material and a solid ion conductor material;
the second capacitance electrode (20) is made of a mixture of a second capacitance electrode active material and a solid ion conductor material.
9. The all-solid-state capacitor cell of claim 8, wherein:
the molar ratio between the solid ion conductor material and the first capacitive electrode active material within the first capacitive electrode (10) is less than or equal to 100%;
the molar ratio between the solid ion conductor material and the second capacitive electrode active material within the second capacitive electrode (20) is 100% or less.
10. The all-solid-state capacitor cell of claim 8 or 9, wherein:
the first capacitor electrode active material is uniformly distributed in a granular shape, and gaps of the first capacitor electrode active material granules are filled with the solid ion conductor material;
the second capacitor electrode active material is uniformly distributed in a granular shape, and gaps of the second capacitor electrode active material granules are filled with the solid ion conductor material.
11. The utility model provides an all-solid-state stromatolite electric capacity electricity core which characterized in that:
the capacitor comprises a soft bag body (101), wherein at least two all-solid-state capacitor cells (100) as claimed in any one of claims 1 to 10 are compounded together in the soft bag body (101);
in two adjacent all-solid-state capacitance battery cells (100), a first capacitance electrode (10) at the end of one all-solid-state capacitance battery cell (100) is arranged adjacent to a second capacitance electrode (20) at the end of the other all-solid-state capacitance battery cell (100), and an electronically conductive and ionically isolated bipolar collector plate (102) is arranged between the adjacent first capacitance electrode (10) and the adjacent second capacitance electrode (20).
12. The utility model provides an all-solid-state composite capacitor electricity core which characterized in that:
the capacitor comprises a soft bag body (101), wherein at least two all-solid-state capacitor cells (100) as claimed in any one of claims 1 to 10 are compounded together in the soft bag body (103);
in two adjacent all-solid-state capacitance cells (100),
the first capacitance electrode (10) at the end of one all-solid-state capacitance battery cell (100) is arranged adjacent to the first capacitance electrode (10) at the end of the other all-solid-state capacitance battery cell (100), the two adjacent first capacitance electrodes (10) are combined together, or a bipolar current collecting plate (104) with electronic conductivity and ionic isolation is arranged between the two adjacent first capacitance electrodes (10), or an insulating diaphragm (105) with electronic insulation and ionic isolation is arranged between the two adjacent first capacitance electrodes (10);
or the like, or, alternatively,
wherein the second capacitor electrode (20) at the end of one of the all-solid capacitor cells (100) is arranged adjacent to the second capacitor electrode (20) at the end of the other of the all-solid capacitor cells (100); the two adjacent second capacitance electrodes (20) are combined together, or a bipolar current collecting plate (104) which is electrically conductive and is isolated by ions is arranged between the two adjacent second capacitance electrodes (20), or an insulating diaphragm (105) which is electrically insulating and is isolated by ions is arranged between the two adjacent second capacitance electrodes (20);
or the like, or, alternatively,
a first capacitance electrode (10) at the end of one all-solid-state capacitance battery cell (100) is arranged adjacent to a second capacitance electrode (20) at the end of the other all-solid-state capacitance battery cell (100), and an insulating diaphragm (106) which is electronically insulated and ion-isolated is arranged between the adjacent first capacitance electrode (10) and the adjacent second capacitance electrode (20).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509622.XA CN112086291A (en) | 2019-06-13 | 2019-06-13 | All-solid-state capacitor cell, laminated capacitor cell and composite capacitor cell |
| PCT/CN2020/095756 WO2020249065A1 (en) | 2019-06-13 | 2020-06-12 | Composite electrode material, cell, laminated cell, composite cell and composite power cell of all-solid-state energy storage device |
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| CN201910509622.XA CN112086291A (en) | 2019-06-13 | 2019-06-13 | All-solid-state capacitor cell, laminated capacitor cell and composite capacitor cell |
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| CN210692371U (en) * | 2019-06-13 | 2020-06-05 | 青岛九环新越新能源科技股份有限公司 | All-solid-state capacitor cell, laminated capacitor cell and composite capacitor cell |
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- 2019-06-13 CN CN201910509622.XA patent/CN112086291A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104616913A (en) * | 2009-08-07 | 2015-05-13 | Oc欧瑞康巴尔斯公司 | All solid-state electrochemical double layer supercapacitor |
| CN103069639A (en) * | 2010-08-09 | 2013-04-24 | 株式会社村田制作所 | Layered solid-state battery |
| CN103219164A (en) * | 2013-04-19 | 2013-07-24 | 中国科学院物理研究所 | Ultra-thin, self-supporting, flexible and all-solid-state super capacitor and manufacturing method thereof |
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