CN112768750B - Recyclable zinc bromide-based solid energy storage electrolyte, and preparation method and application thereof - Google Patents

Recyclable zinc bromide-based solid energy storage electrolyte, and preparation method and application thereof Download PDF

Info

Publication number
CN112768750B
CN112768750B CN202110072067.6A CN202110072067A CN112768750B CN 112768750 B CN112768750 B CN 112768750B CN 202110072067 A CN202110072067 A CN 202110072067A CN 112768750 B CN112768750 B CN 112768750B
Authority
CN
China
Prior art keywords
energy storage
zinc bromide
electrolyte
based solid
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110072067.6A
Other languages
Chinese (zh)
Other versions
CN112768750A (en
Inventor
杨绿野
姚建峰
冯艺
邱健豪
张雄飞
李竞秋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Forestry University
Original Assignee
Nanjing Forestry University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Forestry University filed Critical Nanjing Forestry University
Priority to CN202110072067.6A priority Critical patent/CN112768750B/en
Publication of CN112768750A publication Critical patent/CN112768750A/en
Application granted granted Critical
Publication of CN112768750B publication Critical patent/CN112768750B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
    • H01G11/54—Electrolytes
    • H01G11/56—Solid electrolytes, e.g. gels; Additives therein
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0085—Immobilising or gelification of electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0088—Composites
    • H01M2300/0091—Composites in the form of mixtures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a recyclable zinc bromide-based solid energy storage electrolyte, a preparation method and application thereof. The cellulose and inorganic salt used in the invention are nontoxic and harmless, which is beneficial to human health and environmental protection; the solid electrolyte synthesized by the method only contains inorganic salt, water and cellulose, wherein the inorganic salt and the cellulose are easy to recycle, and the production cost of the electrolyte is reduced.

Description

Recyclable zinc bromide-based solid energy storage electrolyte, and preparation method and application thereof
Technical Field
The invention belongs to the technical field of electrochemical energy storage, and particularly relates to a recyclable zinc bromide-based solid energy storage electrolyte, a preparation method and application thereof.
Background
With the rapid development of flexible and wearable electronic products, flexible energy storage devices face the possibility of being discarded and updated. Solid-state electrolytes have been developed in the past mainly from synthetic polymers as key components of flexible energy storage devices. Since the synthetic polymer is difficult to decompose, it causes a serious problem of environmental pollution. The use of degradable polymers to avoid abuse of non-degradable synthetic polymers is environmentally friendly, however it is difficult to obtain a solid electrolyte with both electrochemical and mechanical properties. In addition, recovery and utilization of the solid electrolyte also require special consideration in order to save production costs of the energy storage product.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made keeping in mind the above and/or other problems occurring in the prior art.
The invention aims to provide a recyclable zinc bromide-based solid energy storage electrolyte, which only contains inorganic salt, water and cellulose, wherein the inorganic salt and the cellulose are easy to recycle, and the production cost of the electrolyte is reduced.
In order to solve the technical problems, the invention provides the following technical scheme: a recyclable zinc bromide-based solid energy storage electrolyte, which is in a gel shape and comprises a zinc salt solution, a calcium salt and cellulose; the zinc salt solution is a zinc bromide aqueous solution; the cellulose comprises one or more of cotton cellulose and cotton linter cellulose.
As a preferred embodiment of the recyclable zinc bromide-based solid energy storage electrolyte of the present invention, wherein: the concentration of the zinc bromide aqueous solution is 71-85 wt%.
As a preferable scheme of the recyclable zinc bromide-based solid energy storage electrolyte, the invention comprises the following steps: the mass of the cellulose accounts for 0.8-2.0% of the mass of the zinc salt.
As a preferable scheme of the recyclable zinc bromide-based solid energy storage electrolyte, the invention comprises the following steps: the cellulose comprises one or more of cotton cellulose and cotton linter cellulose.
As a preferable scheme of the recyclable zinc bromide-based solid energy storage electrolyte, the invention comprises the following steps: the calcium salt is calcium chloride or calcium bromide.
As a preferred embodiment of the recyclable zinc bromide-based solid energy storage electrolyte of the present invention, wherein: the mass of calcium ions in the calcium salt accounts for 0.24-1.2% of the mass of the zinc salt.
The invention also aims to provide a preparation method of the recyclable zinc bromide-based solid energy storage electrolyte, which comprises the steps of mixing the aqueous solution of zinc bromide and cellulose, stirring until the mixture is transparent, adding deionized water and calcium salt, stirring until the calcium salt is dissolved, and carrying out ultrasonic treatment and cooling to obtain the zinc bromide-based solid energy storage electrolyte.
As a preferred scheme of the preparation method of the recyclable zinc bromide-based solid energy storage electrolyte, the method comprises the following steps: the mass of the deionized water is 20-150% of the water content in the zinc salt solution.
As a preferred scheme of the preparation method of the recyclable zinc bromide-based solid energy storage electrolyte, the method comprises the following steps: the dissolving, the stirring and the ultrasonic temperature are 65-85 ℃.
It is another object of the invention to provide a recyclable zinc bromide-based solid state energy storage electrolyte for use in capacitors/batteries.
As a preferred embodiment of the application of the recyclable zinc bromide-based solid energy storage electrolyte in the capacitor/battery of the present invention, wherein: a capacitor/battery is assembled by the sequence of the negative electrode, the zinc bromide-based solid energy storage electrolyte and the positive electrode;
wherein the active material of the negative electrode is metal zinc; the active material of the positive electrode is a carbon material.
Compared with the prior art, the invention has the following beneficial effects: the invention uses cellulose to synthesize the solid electrolyte, the cellulose is used as a natural polymer and is biodegradable, and the used cellulose and inorganic salt are nontoxic and harmless; the solid electrolyte synthesized by the method only contains inorganic salt, water and cellulose, wherein the inorganic salt and the cellulose are easy to recycle, and the production cost of the electrolyte is reduced; the zinc bromide aqueous solution is used as a common energy storage electrolyte, and the technology of gelatinizing the zinc bromide aqueous solution is beneficial to expanding the application scene of the zinc bromide aqueous solution.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
figure 1 is an illustration of the appearance and flexibility of a zinc bromide-based solid energy storage electrolyte prepared in example 1 of the present invention.
Fig. 2 is a process of decomposition of the cellulose-based solid electrolyte prepared in example 1 of the present invention in water.
FIG. 3 shows an energy storage device assembled by cellulose-based solid electrolyte prepared in example 1 of the present invention at 50mV s -1 Cyclic voltammograms at different potential windows at the scan rate.
FIG. 4 shows an energy storage device assembled with a cellulose-based solid electrolyte prepared in example 1 of the present invention at 4 Ag -1 Constant current charge and discharge curve at current density.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, specific embodiments thereof are described in detail below with reference to examples of the specification.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
(1) Mixing 12.25g of zinc bromide with 2.845g of removed water, stirring, and heating to 70 ℃;
(2) After the zinc bromide is completely dissolved, adding 0.15g of dry cotton linter, and continuously stirring until the cotton linter is completely dissolved;
(3) Adding 2g of deionized water and 0.2g of calcium chloride, and stirring until the calcium chloride is completely dissolved and the solution becomes viscous;
(4) Transferring the obtained viscous liquid to a water bath at 70 ℃ for ultrasonic treatment to remove bubbles;
(5) And pouring the viscous liquid into a grinding tool, and cooling to obtain the solid electrolyte for the energy storage device.
Fig. 1 is an appearance diagram of the solid electrolyte prepared in this example 1, which is a colorless transparent gel with mechanical properties, can be twisted and stretched, and can be used to assemble flexible energy storage devices.
Fig. 2 shows the decomposition process of the solid electrolyte prepared in example 1 in water, and it can be seen that the original gel can be rapidly decomposed within 60 seconds. This is because the electrolyte salt in the gel diffuses into water, so that the originally dissolved cellulose precipitates, and the dissolution of the cellulose accelerates the disintegration of the gel, and finally the gel is decomposed into a mixture of inorganic salt, water and cellulose. The precipitated cellulose was observed at the bottom of the beaker, and the inorganic salt and cellulose were recovered separately as synthetic components of the solid electrolyte.
Example 2
The solid electrolyte prepared in example 1 was assembled into a capacitor, specifically, the capacitor was assembled in a sandwich structure in the order of negative electrode, solid electrolyte, and positive electrode, the negative electrode was zinc foil, and the positive electrode was titanium foil loaded with activated carbon. The performance of the capacitor was tested.
FIG. 3 shows the solid electrolyte prepared in example 1 after assembly into a zinc ion capacitor/cell at 50mV s -1 Cyclic voltammograms at the scan rate. As the scanning potential window increases, the area of cyclic voltammetry also increases, due to the reversible reaction involving bromine. The cyclic voltammogram mainly shows capacitor behavior within 1.8V, and reversible cell behavior is clearly observed after 1.8V.
FIG. 4 is a zinc ion capacitor assembled by the solid electrolyte prepared in example 1After the device/battery is 4 Ag -1 Constant current charge and discharge curve at current density. The discharge capacity of the capacitor/battery can reach 164mAh g under the window of 0-1.8V -1 (specific capacitance in terms of the amount of activated carbon loaded).
Example 3
(1) Mixing 12.25g of zinc bromide and 4.56g of removed water, stirring and heating to 80 ℃;
(2) After the zinc bromide is completely dissolved, adding 0.10g of dry cotton linter, and continuously stirring until the cotton linter is completely dissolved;
(3) Adding 1g of deionized water and 0.15g of calcium chloride, and stirring until the calcium chloride is completely dissolved and the solution becomes viscous;
(4) Transferring the obtained viscous liquid to a water bath at 80 ℃ for ultrasonic treatment to remove bubbles;
(5) And pouring the viscous liquid into a grinding tool, and cooling to obtain the solid electrolyte for the energy storage device.
The solid electrolyte prepared in the embodiment 3, zinc foil and activated carbon are assembled into a zinc ion energy storage device at a window of 0-1.8V and 4 Ag -1 The discharge capacity of the capacitor/battery can reach 151mAh g -1 。
Example 4
(1) Mixing 12.25g of zinc bromide with 2.2g of removed water, stirring, and heating to 75 ℃;
(2) After the zinc bromide is completely dissolved, 0.12g of dry cotton linter is added, and the mixture is continuously stirred until the cotton linter is completely dissolved;
(3) Adding 3g of deionized water and 0.1g of calcium chloride, and stirring until the calcium chloride is completely dissolved and the solution becomes viscous;
(4) Transferring the obtained viscous liquid to a water bath at 75 ℃ for ultrasonic treatment to remove bubbles;
(5) And pouring the viscous liquid into a grinding tool, and cooling to obtain the solid electrolyte for the energy storage device.
The solid electrolyte prepared in the embodiment 4, zinc foil and activated carbon are assembled into a zinc ion energy storage device at a window of 0-1.8V and 4 Ag -1 The discharge capacity of the capacitor/battery can reach 143mAh g -1 。
Example 5
(1) Mixing 12.25g of zinc bromide with 3.0g of removed water, stirring, and heating to 85 ℃;
(2) After the zinc bromide is completely dissolved, adding 0.2g of dry cotton linter, and continuously stirring until the cotton linter is completely dissolved;
(3) Adding 2g of deionized water and 0.3g of calcium chloride, and stirring until the calcium chloride is completely dissolved and the solution becomes viscous;
(4) Transferring the obtained viscous liquid to a water bath at 85 ℃ for ultrasonic treatment to remove bubbles;
(5) And pouring the viscous liquid into a grinding tool, and cooling to obtain the solid electrolyte for the energy storage device.
The solid electrolyte prepared in the example 5, zinc foil and activated carbon are assembled into a zinc ion energy storage device at a window of 0-1.8V and 4 Ag -1 The discharge capacity of the capacitor/battery can reach 133mAh g under the current density -1 。
Example 6
(1) Mixing 12.25g of zinc bromide with 3.0g of removed water, stirring, and heating to 85 ℃;
(2) After the zinc bromide is completely dissolved, adding 0.2g of dry cotton linter, and continuously stirring until the cotton linter is completely dissolved;
(3) Adding 2g of deionized water and 0.4g of calcium bromide, and stirring until the calcium chloride is completely dissolved and the solution becomes viscous;
(4) Transferring the obtained viscous liquid to a water bath at 85 ℃ for ultrasonic treatment to remove bubbles;
(5) And pouring the viscous liquid into a grinding tool, and cooling to obtain the solid electrolyte for the energy storage device.
The solid electrolyte prepared in the embodiment 6, zinc foil and activated carbon are assembled into a zinc ion energy storage device at a window of 0-1.8V and 4 Ag -1 The discharge capacity of the capacitor/battery can reach 139mAh g -1 。
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (1)

1. The application of recyclable zinc bromide-based solid energy storage electrolyte in capacitors/batteries is characterized in that: assembling a capacitor/battery by the sequence of a negative electrode, a zinc bromide-based solid energy storage electrolyte and a positive electrode;
the capacitor/battery has the following characteristics:
(i) The cyclic voltammogram shows a capacitor behavior within 1.8V and a reversible battery behavior after 1.8V;
(ii) The discharge capacity of the capacitor/battery reaches 164mAh g under the window of 0-1.8V -1 (ii) a Wherein the active material of the negative electrode is metal zinc; the active material of the positive electrode is a carbon material;
the preparation method of the zinc bromide based solid energy storage electrolyte comprises the following steps,
(1) 12.25g of zinc bromide was mixed with 2.845g of deionized water, stirred, and heated to 70 deg.f o C；
(2) After the zinc bromide is completely dissolved, 0.15g of dry cotton linter is added, and the mixture is continuously stirred until the cotton linter is completely dissolved;
(3) Adding 2g of deionized water and 0.2g of calcium chloride, and stirring until the calcium chloride is completely dissolved and the solution becomes viscous;
(4) The resulting viscous liquid was transferred to 70 o C, ultrasonic treatment in a water bath to remove bubbles;
(5) And pouring the viscous liquid into a grinding tool, and cooling to obtain the solid electrolyte for the energy storage device.
CN202110072067.6A 2021-01-20 2021-01-20 Recyclable zinc bromide-based solid energy storage electrolyte, and preparation method and application thereof Active CN112768750B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110072067.6A CN112768750B (en) 2021-01-20 2021-01-20 Recyclable zinc bromide-based solid energy storage electrolyte, and preparation method and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110072067.6A CN112768750B (en) 2021-01-20 2021-01-20 Recyclable zinc bromide-based solid energy storage electrolyte, and preparation method and application thereof

Publications (2)

Publication Number Publication Date
CN112768750A CN112768750A (en) 2021-05-07
CN112768750B true CN112768750B (en) 2022-12-09

Family

ID=75703337

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110072067.6A Active CN112768750B (en) 2021-01-20 2021-01-20 Recyclable zinc bromide-based solid energy storage electrolyte, and preparation method and application thereof

Country Status (1)

Country Link
CN (1) CN112768750B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652043A (en) * 1995-12-20 1997-07-29 Baruch Levanon Flexible thin layer open electrochemical cell
CN2558092Y (en) * 2002-07-16 2003-06-25 刘勃 Paper cell
CN201608230U (en) * 2010-01-28 2010-10-13 吴立 Environment-friendly paper battery
CN102683756B (en) * 2011-03-15 2014-10-22 清华大学深圳研究生院 Polymer rechargeable zinc ion battery
CN105336971B (en) * 2015-09-25 2018-08-17 中国人民解放军63971部队 Water-system zinc-manganese single flow battery
CN105609754B (en) * 2016-02-17 2018-05-29 张家港智电芳华蓄电研究所有限公司 A kind of double positive electrodes and aqoue seconary battery
CN111630695A (en) * 2017-12-01 2020-09-04 香港大学 Paper-based aluminum-air cells and batteries suitable for portable applications

Also Published As

Publication number Publication date
CN112768750A (en) 2021-05-07

Similar Documents

Publication Publication Date Title
Xu et al. Biopolymer-based hydrogel electrolytes for advanced energy storage/conversion devices: Properties, applications, and perspectives
Tang et al. Issues and opportunities facing aqueous zinc-ion batteries
Roy et al. Chitosan-based materials for supercapacitor applications: a review
CN101475663B (en) Method for preparing ion liquid type gel polymer electrolyte and battery by in situ polymerization
CN111740172B (en) Gel electrolyte for zinc ion battery and preparation method thereof
CN101409365B (en) Lithium ion battery gel polymer electrolyte doped with nanometer particle and preparation method thereof
Perumal et al. Impact of lithium chlorate salts on structural and electrical properties of natural polymer electrolytes for all solid state lithium polymer batteries
CN112724266A (en) Preparation method of lithium carboxymethyl cellulose for lithium battery
Li et al. Nanocellulose composite gel with high ionic conductivity and long service life for flexible zinc-air battery
Osman et al. Chitosan and phthaloylated chitosan in electrochemical devices
CN112768750B (en) Recyclable zinc bromide-based solid energy storage electrolyte, and preparation method and application thereof
US8871390B2 (en) PAN-PEO gels with improved conductance and solvent retention
Yang et al. Agar-PVA/GO double network gel electrolyte for high performance flexible zinc-air batteries
Ghazali et al. Progress on biopolymer as an application in electrolytes system: A review study
Ahmed et al. Nature-derived polymers and their composites for energy depository applications in batteries and supercapacitors: Advances, prospects and sustainability
CN111883857B (en) Colloidal electrolyte and zinc ion battery comprising same
CN106229501A (en) A kind of nano strip magnesium Mn oxide and the preparation method of water system Magnesium ion battery electrode
CN112908713A (en) Capacitor with self-charging characteristic and preparation method thereof
Zakaria et al. A Review of Carrageenan as a Polymer Electrolyte in Energy Resource Applications
CN112072116A (en) Cobaltosic oxide-doped carbon-coated tin dioxide composite material and preparation method and application thereof
CN111312528A (en) Chitin regenerated hydrogel and preparation method and application thereof
CN107221647A (en) A kind of preparation method of nitrogen-doped titanic acid lithium/graphene nanocomposite material
CN106848254A (en) A kind of anode material of lithium-ion battery and preparation method thereof, sodium-ion battery
CN100549086C (en) A kind of gel polymer electrolyte and preparation method thereof
CN110212223A (en) A kind of preparation method and applications of quaternary electrolyte gel polyelectrolyte

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant