CN218069909U - Zinc ion battery - Google Patents
Zinc ion battery Download PDFInfo
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- CN218069909U CN218069909U CN202220956330.8U CN202220956330U CN218069909U CN 218069909 U CN218069909 U CN 218069909U CN 202220956330 U CN202220956330 U CN 202220956330U CN 218069909 U CN218069909 U CN 218069909U
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- ion battery
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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
Abstract
The utility model belongs to the technical field of the battery, a zinc ion battery is disclosed, including shell, active material working electrode, solid state electrolyte, counter electrode and KOH/Zn (Ac) 2 And (3) an electrolyte. Wherein, the working electrode and the counter electrode are wrapped at two sides in the shell; the working electrode is coated with the Co 2 (OH) 2 CO 3 The anode active material comprises a porous conductive network of an anode active material, wherein the porous conductive network is a nickel-plated silicon microchannel plate with a porous ordered transparent array structure; the counter electrode is made of zinc foil and foamed nickel materials, the zinc foil provides a zinc source for the zinc ion battery, and the foamed nickel plays a supporting role. Between the working electrode and the counter electrodeIs KOH/Zn (Ac) 2 An electrolyte; the solid electrolyte separator is used to separate an active material layer of a working electrode and an active material layer of a counter electrode of a zinc ion battery. The method solves the problem that the electrochemical performance is reduced because active substances are easy to agglomerate when the existing zinc ion battery with high-load composite material is charged and discharged.
Description
Technical Field
The utility model relates to the technical field of batteries, specifically a zinc ion battery.
Background
Compared with lithium ion battery, zinc ion battery has lower cost, zinc is widely distributed in nature, and zinc content of earth crust is 1.5 × 10 -3 % of the total weight of the composition. Many minerals contain zinc, sphalerite ZnS and composite sulfide ore are the most widely distributed zinc-containing minerals and have higher safety performance, and zinc ion batteries become hot points of research of scientists, and particularly, zinc ion battery anodes based on multi-component composite oxides are receiving more and more attention.
The existing zinc ion battery structure has the following problems: 1. the high-load multielement composite material is agglomerated, the electrochemical performance of the electrode is reduced, and the storage capacity of charges is damaged. 2. Because the contact surface of the multi-element composite material and the electrolyte solution is small, the contact internal resistance is increased, the electrochemical performance of the device is reduced, and the zinc ion battery is seriously disabled. Based on this, the utility model designs a zinc ion battery to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a zinc ion battery, the zinc ion battery of solving current high load combined material is when carrying out charge-discharge, and active material agglomerates easily, leads to the problem that electrochemical performance descends.
In order to achieve the above object, the utility model provides a following technical scheme: a zinc ion battery comprises a housing, an active material working electrode,Solid electrolyte, counter electrode and KOH/Zn (Ac) 2 An electrolyte;
wherein, the active material working electrode and the counter electrode are wrapped at two sides in the shell; the working electrode of the active material is coated with Co 2 (OH) 2 CO 3 The porous conductive network is a nickel-silicon plated micro-channel plate with a porous and ordered transparent array structure, the counter electrode is made of zinc foil and a foamed nickel material, the zinc foil provides a zinc source for the zinc ion battery, the foamed nickel plays a supporting role, and a diaphragm on the solid electrolyte is used for separating an active material layer of an active material working electrode of the zinc ion battery from an active material layer of the counter electrode.
Preferably, the case includes a working electrode battery case disposed at an upper portion and a counter electrode battery case disposed at a lower portion, the working electrode battery case and the counter electrode battery case being hermetically assembled up and down.
Preferably, the size of the pore diameter of the nickel-plated silicon microchannel plate is 5 μm × 5 μm × 250 μm.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model utilizes the basic metal carbonate compound M 2 (CO 3 )(OH) 2 (M = Ni, fe, cu, co, zn, etc.) because of its high theoretical capacity and variable composition, the compound Co 2 (CO 3 )(OH) 2 Has a crystal structure of CO 3 2- Ion insertion into Co (OH) 6 In the form between octahedral layers, the unique layered structure enables ions to diffuse rapidly in the inner region, and has good electrochemical performance. The voltage of the Co +2/+3 phase change platform is increased to about 2V, the reversible capacity is high, the zinc ion can be contained for deintercalation, and the zinc ion battery anode material is an ideal anode material for a zinc ion battery.
The utility model discloses a parallelly connected structure utilizes Co +2/+3 phase transition, realizes the zinc ion embedding between working electrode and zinc foil and deviates from, carries out battery charge and discharge. Co with three-dimensional architecture 2 (CO 3 )(OH) 2 The composite material is used as the positive electrode of the zinc ion battery, has a three-dimensional ion channel structure, and can be used for preparing the zinc ion batteryHigh ion diffusion rate of the system, can effectively improve the electrode and KOH/Zn (Ac) 2 The effective contact specific surface area of the electrolyte can inhibit the material agglomeration, improve the mechanical strength and mechanical property of the cathode, and improve the storage capacity of charges. Thereby improving the rate capability and the cycling stability of the zinc ion battery.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the zinc ion battery of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a zinc ion battery comprises a housing, an active material working electrode 2, a solid electrolyte 3, a counter electrode and KOH/Zn (Ac) 2 An electrolyte;
wherein, the active material working electrode 2 and the counter electrode are wrapped at two sides in the shell; specifically, the case includes a working electrode battery case 7 provided at the upper portion and a counter electrode battery case 6 provided at the lower portion, and the working electrode battery case 7 and the electrode battery case 6 are hermetically assembled up and down.
Co coating inside the active material working electrode 2 2 (OH) 2 CO 3 Porous conductive network 1 of active materialThe porous conductive network 1 is a nickel-plated silicon microchannel plate with a porous ordered transparent array structure, and the size of the pore diameter of the nickel-plated silicon microchannel plate is 5 microns, 250 microns, and the width and the depth of the pore diameter of the nickel-plated silicon microchannel plate are 5 microns, 5 microns and 250 microns.
The counter electrode is made of zinc foil 4 and foam nickel 5, the zinc foil 4 provides a zinc source for the zinc ion battery, and the foam nickel 5 plays a supporting role, so that the whole structure is compact and complete. The separator on the solid electrolyte 3 serves to separate the active material layer of the working electrode 2 and the active material layer of the counter electrode of the zinc-ion battery.
The utility model discloses a zinc ion battery for restrain the many combined material of high load volume and reunite, the electrochemical performance of reinforcing electrode improves the storage capacity of electric charge again. Meanwhile, the macroporous conductive network is used as a current collector and the three-dimensional ordered porous structure of the current collector can provide more contact surfaces of electrode active substances and electrolyte, so that zinc ions and electron transmission channels are increased, the problem that the excessive active substance is easy to fall off due to loading is solved, and the conductivity is improved. The utility model discloses restrain the many first combined material of high load promptly and reunited, strengthened the electrochemical properties of electrode again, improved the memory capacity of electric charge.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. A zinc-ion battery, characterized by: comprises a shell, an active material working electrode (2), a solid electrolyte (3), a counter electrode and KOH/Zn (Ac) 2 An electrolyte;
wherein, the active material working electrode (2) and the counter electrode are wrapped at two sides in the shell; the active material working electrode (2) is coated with Co 2 (OH) 2 CO 3 The active material comprises a porous conductive network (1) of an active material, wherein the porous conductive network (1) is a nickel-plated silicon microchannel plate with a porous and orderly transparent array structure, the counter electrode is made of zinc foil (4) and foamed nickel (5) materials, the zinc foil (4) provides a zinc source for the zinc ion battery, the foamed nickel (5) plays a supporting role, and a diaphragm on the solid electrolyte (3) is used for separating an active material layer of a working electrode (2) of the zinc ion battery from an active material layer of the counter electrode.
2. A zinc-ion battery according to claim 1, wherein: the shell comprises a working electrode battery shell (7) arranged at the upper part and a counter electrode battery shell (6) arranged at the lower part, and the working electrode battery shell (7) and the counter electrode battery shell (6) are assembled in a vertically sealed mode.
3. The zinc-ion battery of claim 1, wherein: the pore diameter of the nickel-plated silicon microchannel plate is 5 micrometers, 5 micrometers and 250 micrometers in length, width and depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220956330.8U CN218069909U (en) | 2022-04-24 | 2022-04-24 | Zinc ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220956330.8U CN218069909U (en) | 2022-04-24 | 2022-04-24 | Zinc ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218069909U true CN218069909U (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220956330.8U Active CN218069909U (en) | 2022-04-24 | 2022-04-24 | Zinc ion battery |
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| CN (1) | CN218069909U (en) |
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2022
- 2022-04-24 CN CN202220956330.8U patent/CN218069909U/en active Active
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