CN104600346A - Flexible portable energy tube and preparation method thereof - Google Patents

Flexible portable energy tube and preparation method thereof Download PDF

Info

Publication number
CN104600346A
CN104600346A CN201410718578.0A CN201410718578A CN104600346A CN 104600346 A CN104600346 A CN 104600346A CN 201410718578 A CN201410718578 A CN 201410718578A CN 104600346 A CN104600346 A CN 104600346A
Authority
CN
China
Prior art keywords
tube
flexible
ion
portable energy
energy tube
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.)
Pending
Application number
CN201410718578.0A
Other languages
Chinese (zh)
Inventor
邹德春
彭鸣
傅永平
简蓉
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.)
Peking University
Original Assignee
Peking 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 Peking University filed Critical Peking University
Priority to CN201410718578.0A priority Critical patent/CN104600346A/en
Publication of CN104600346A publication Critical patent/CN104600346A/en
Pending legal-status Critical Current

Links

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
    • H01M10/04—Construction or manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Hybrid Cells (AREA)

Abstract

The application discloses a flexible portable energy tube and a preparation method thereof. It is characterized in that: the conductive fiber with catalytic activity is used as a cathode and is positioned at the innermost layer of the energy tube; the selective ion exchange membrane is taken as an ion separator and is wrapped on the cathode; the metal electrode is taken as an anode and tightly wound outside the ion isolation body to form a functional structure of the energy tube; and placing the functional structure in a flexible tube filled with electrolyte, and packaging to obtain the flexible source tube. The flexible portable energy source has simple structure, rich material sources and low cost, and is convenient for large-scale production; the storage capacity is adjustable, the cycle performance is excellent, bending resistance, light weight and portability are achieved. The portable energy tube can not only independently drive small-sized electric appliances, but also be used as a storage element of an emergency power supply.

Description

Flexible portable energy tube and preparation method thereof
Technical Field
The invention belongs to the technical field of flexible electronics, and relates to a flexible portable energy tube (also called as a tubular rechargeable battery) and a preparation method thereof.
Background
In recent years, new optoelectronic products are continuously entering the visual field of people, such as smart phones, palm computers, flexible display screens and the like, and gradually entering the lives of people. In order to further meet the requirement of personal optoelectronic functions, the development of novel flexible optoelectronic devices has become an important trend in the development of electronic products. The rechargeable battery can store electric energy and plan electricity utilization, and has a great importance in real life. The flexible, light and efficient battery can meet the requirement of carrying about, can be used as an emergency energy source, can be combined with other electric appliances to construct complex electronic equipment, and has good application prospect.
Currently, there are only a few patents on the design of flexible batteries in China. Patents CN102656729a and CN203056029U disclose structures of flexible lithium batteries, in which active metal lithium is directly used as an electrode material, and the electrode material is sensitive to air components, and has a high material cost, which is difficult to popularize and apply on a large scale. CN102959760A relates to a design for realizing battery flexibility through a substrate corrugated structure, but the structure is complex, the processing is not easy, and a large space is occupied. CN102201580A discloses a design of a flexible zinc-manganese battery, which can realize low-cost and large-scale production, but the primary discharge principle of the battery determines that the battery cannot adapt to charge-discharge circulation. CN 103700798A discloses a design of a fiber chemical energy storage power supply, which is suitable for a battery type in which an electrode material is subjected to valence state change and an electrolyte is not subjected to valence state change, and the capacity is limited by the amount of an active material loaded on an electrode. The designs involved in these patents have the following disadvantages: firstly, the flexible rechargeable battery is based on the principle of a lithium battery, the material cost is high, and the packaging difficulty is increased by taking active metal lithium as an electrode material. Secondly, the flexibility of the battery mainly depends on the flexibility of the substrate, the thickness of the functional layer is limited, the capacity of the battery is limited, and the active material can fall off under bending, so that the bending resistance of the battery is poor. Thirdly, the flexible battery is mostly in a plane shape, and the design of the new shape is beneficial to expanding the application form and the application occasion of the battery.
Disclosure of Invention
In order to solve the above problems, the present invention provides a flexible portable energy tube and a method for manufacturing the same. The flexible portable energy source has simple structure, rich material sources and low cost, and is convenient for large-scale production; the storage capacity is adjustable, the cycle performance is excellent, bending resistance, light weight and portability are achieved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a flexible portable energy tube comprising: a cathode located at an innermost layer of the energy tube; an ion separator wrapping the cathode; an anode tightly wound outside the ion isolator; the cathode, the ion separator and the anode together form a functional structure of the energy tube; the functional structure is arranged in a flexible pipe filled with electrolyte.
Further, the cathode is a flexible and bendable electrically conductive fiber with catalytic activity.
Further, the types of the conductive fibers include platinum wires, carbon fibers, conductive fibers modified by catalytic materials such as platinum carbon, activated carbon or carbon black, and the like; the diameter of the fiber is not limited, but is preferably 0.01 to 0.1mm in view of strength, flexibility and light weight.
Furthermore, the ion separator is a selective ion exchange membrane, the material is not limited, and a fluoropolymer cation selective permeable membrane is preferred; the thickness of the film layer is 0.01 to 1000 μm, and the film thickness is preferably 0.08 to 0.3mm in view of the strength and flexibility of the film.
Further, the selective ion exchange membrane is in a strip shape or a tube shape.
Further, the anode is a wire-shaped or strip-shaped metal electrode.
Furthermore, the filiform or strip-shaped metal electrode comprises chromium (Cr), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn) and the like or alloys thereof, the diameter of the filiform metal is 0.1-0.2mm, and the width of the strip-shaped metal is 0.15-0.4cm.
Further, the thread pitch of the anode-wound ion separator is not limited, and is preferably 0.2-0.8cm for structural fixation and active surface requirements.
Further, the electrolyte is an aqueous solution of bromide or iodide, wherein the metal elements contained therein correspond to (coincide with) the anode metal elements, and include bromide and iodide salts of chromium (Cr), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), and the like; the concentration is not limited, and is preferably 1 to 5M in view of the energy density of the battery and the solubility of the inorganic salt.
Furthermore, the flexible pipe is not limited in material, and comprises a thin-wall polyethylene pipe, a multicolor polyurethane pipe, a polysiloxane pipe with good flexibility and elasticity and the like; for the convenience of preparation, a flexible tube with a heat-shrinkable property is preferred; the inner diameter is not limited, but is preferably 0.4cm to 2cm in view of flexibility and capacity.
A method for preparing the flexible portable energy tube comprises the following steps:
1) Tightly winding the metal electrode outside the ion isolator;
2) Inserting conductive fibers into the ion isolation body, and forming a main functional structure of the energy tube together with the metal electrode and the ion isolation body;
3) And placing the functional structure in a flexible tube filled with electrolyte, and packaging to obtain the flexible portable energy tube.
Further, when the strip-shaped ion exchange membrane is used as an ion isolator, the ion exchange membrane is rolled into a column shape and is tightly wound and fixed by a metal electrode; when the tubular ion exchange membrane is used as an ion separator, the tubular ion exchange membrane is directly and tightly wound by a metal electrode, the thread pitch is not limited, and the tubular ion exchange membrane is preferably 0.2-0.8cm due to the requirements of structure fixation and active surface.
Further, the method also comprises soaking the ion separator in the electrolyte for 4-20 hours, preferably 12 hours before the step 1).
Further, the inner diameter of the ion exchange membrane rolled into a cylindrical shape is determined according to the selected flexible tube, and is preferably 1mm to 1cm in view of flexibility and capacity.
Further, the step 2) further comprises soaking the main functional structure in the electrolyte for 4-48 hours, preferably 24 hours.
Depending on the ion type of the selected inorganic salt, the charging electrode reaction of the battery is:
cathode 2X - -2e→X 2 (X＝Br，I)；
Anode: m n+ +ne→M(M＝Cr，Fe，Co，Ni，Cu，Zn)；
The discharge reaction is the reverse of the above reaction. Therefore, in the working process of the battery, the anode material is not consumed, and the material with good conductivity and good catalytic performance is selected; the cathode material participates in the reaction, and the metal quantity is required to be ensured to be enough so as to ensure the reaction quantity and the conductivity.
The layer-by-layer wrapped structure referred to in this application is completely different compared to the design of CN 103700798A (electrode wound separator structure). The presence of the selective ion exchange membrane allows the two poles to be completely separated without the possibility of short-circuiting. The design has no limit on the reaction condition of the electrode material and the electrolyte, has greater flexibility in material selection, and has greater advantages in selecting cheap and easily available materials and simplifying the manufacturing process. And this application has avoided using fragile powder active material, has not had the problem that the functional layer drops, from the resistant bending performance of structural assurance battery. Under the condition of excessive metal, the capacity of the battery is determined by the amount of electrolyte; the design of the battery capacity can be easily realized by controlling the concentration of the electrolyte and the capacity of the flexible tube.
The invention has the beneficial effects that:
firstly, by utilizing a simpler and more definite redox reaction principle, cheap inorganic salt is taken as an active material, which is beneficial to realizing energy storage with high cost performance, long service life, large capacity and high density;
secondly, a metal band or carbon fiber is used as an electrode, and a functional layer is not needed to be coated, so that the preparation process is simple, the problem of functional layer falling is avoided, and the flexibility of the battery can be fully supported;
thirdly, the material selection of the battery has great flexibility, and the battery does not contain volatile solvent, and if metal zinc is selected as an electrode material, the requirements of safety and environmental protection can be easily met;
fourthly, a layered structure from inside to outside is designed, and the rechargeable battery can be packaged by using a transparent flexible tube, so that the rechargeable battery is small, exquisite and portable, the color (the content of bromine and iodine can be reflected) can be directly observed, and the capacity condition of the battery can be known; colored packaging can also be selected to meet specific aesthetic requirements.
It is worth pointing out that compared with the traditional rechargeable battery design, the materials involved in the invention are cheap and easy to obtain, the power output is stable, the light weight and the flexibility are portable, and the flexible use can be realized.
Drawings
Fig. 1 is a schematic view of a flexible portable energy tube.
Fig. 2 is a schematic cross-sectional view of a flexible portable energy tube.
Fig. 3 is a charge-discharge curve of a flexible portable energy source tube (5 cm) based on a platinum electrode at different current densities.
Fig. 4 is the cycling performance of a flexible portable energy tube based on a platinum electrode at a current of 4mA/cm, with no significant change in specific capacity (Q), energy density (E) and power density (P) in the bent state and the free state.
Fig. 5 is a charge-discharge curve of a flexible portable energy tube (5 cm) based on carbon fiber at different current densities.
Wherein: 1-a cathode; 2-ion exchange membrane; 3-an anode; 4-an electrolyte; 5-flexible pipe.
Detailed Description
The flexible portable energy tube of the invention is shown in fig. 1 and fig. 2, and mainly comprises a cathode 1, which is positioned at the innermost layer of the energy tube; the ion exchange membrane 2 is wrapped on the cathode 1; an anode 3 tightly wound outside the ion exchange membrane 2; the cathode 1, the ion exchange membrane 2 and the anode 3 jointly form a functional structure of an energy tube; the functional structure is placed in a flexible tube containing electrolyte 4.
Depending on the ion type of the selected inorganic salt, the charging electrode reaction of the battery is:
cathode 2X - -2e→X 2 (X＝Br，I)；
Anode: m n+ +ne→M(M＝Cr，Fe，Co，Ni，Cu，Zn)；
The discharge reaction is the reverse of the above reaction. In the process of charging the battery, cations move from the cathode to the anode through a membrane, the ion concentrations of the anode and the cathode are changed, and meanwhile, the concentration of newly generated active species is ensured, so that the potential difference of the battery is formed; in the discharging process, the transport directions of the positive ions are opposite, and current is transmitted to an external circuit until the ion concentrations at two sides of the ion exchange membrane are similar.
Example one
Taking a platinum wire (the diameter is about 0.08 mm) with catalytic activity as a battery cathode, taking a long-strip-shaped (5 cm x 1.5 cm) ion exchange membrane (the thickness is about 0.18 mm) as an ion separator, and wrapping the battery cathode in a curling mode (the inner diameter is about 0.3 cm); a zinc strip (0.2 cm wide) is used as the anode of the battery and is tightly wound outside the ion isolation body in a spiral mode (the thread pitch is 0.5 cm). And (3) placing the functional structure in a transparent flexible heat-shrinkable tube (with the inner diameter of 0.4 cm) filled with zinc bromide electrolyte (2M), and packaging to obtain the flexible portable energy tube.
As shown in fig. 3, the charge and discharge curves of the flexible portable energy source tube (5 cm) based on the platinum electrode are shown under different current densities. Under the current of 1724mA/g (4 mA/cm), the specific capacity (Q) of the battery reaches 567mA h/g (1.3 mA h/cm). The cycling performance of the flexible portable energy tube at a current of 4mA/cm is shown in fig. 4. The specific capacity (Q, about 550mA h/g), energy density (E, about 800W h/Kg) and power density (P, about 1.7 kW/Kg) were not significantly different in the bent state and the natural state, and remained almost unchanged for 30 cycles.
Example two
Taking a bundle of carbon fibers (the diameter of a single carbon fiber is about 0.01 mm) with catalytic activity as a battery cathode, taking a long-strip-shaped (5 cm x 1.5 cm) ion exchange membrane (the thickness is about 0.18 mm) as an ion separator, and wrapping the battery cathode in a coiled manner (the inner diameter is about 0.3 cm); a zinc strip (0.2 cm wide) is used as the anode of the battery and is tightly wound outside the ion isolation body in a spiral mode (the thread pitch is 0.5 cm). And (3) placing the functional structure in a transparent flexible heat-shrinkable tube (with the inner diameter of 0.4 cm) filled with zinc bromide electrolyte (2M), and packaging to obtain the flexible portable energy tube.
As shown in FIG. 5, the carbon fiber-based flexible portable energy tube (5 cm) shows a stable charge-discharge curve under different current densities, and the capacity can reach 600mA h/g.
EXAMPLE III
Taking a bundle of graphene fibers (the diameter of each graphene fiber is about 0.03 mm) with active platinum carbon particles loaded on the surfaces as a battery cathode, taking a long-strip-shaped (10cm x 4cm) ion exchange membrane (the thickness of about 0.3 mm) as an ion isolator, and wrapping the battery cathode in a curling mode (the inner diameter of about 0.6 cm); a plurality of strands of iron wire fibers (with the diameter of 0.15 mm) are taken as the anode of the battery and are tightly wound outside the ion separator in a spiral mode (the thread pitch is 0.4 cm). And (3) placing the functional structure in a transparent flexible polyethylene pipe (with the inner diameter of 1.0 cm) containing ferrous bromide electrolyte (2-4M), and packaging to obtain the flexible portable energy pipe.
Example four
A bundle of carbon nanotube fibers (the diameter of each carbon nanotube fiber is about 0.015 mm) of which the surfaces are loaded with active carbon particles are taken as a battery cathode, a long-strip-shaped (20cm x 3cm) ion exchange membrane (the thickness is about 0.08 mm) is taken as an ion isolator, and the battery cathode is wrapped in a curling mode (the inner diameter is about 0.5 cm); cobalt strips (0.15 cm wide) were used as the cell anodes and tightly wound in a spiral (pitch 0.45 cm) fashion outside the ion separator. And (3) placing the functional structure in an elastic polysiloxane tube (with the inner diameter of 0.8 cm) filled with cobalt iodide electrolyte (1-2M), and packaging to obtain the flexible portable energy tube.
EXAMPLE five
Taking a bundle of carbon fibers (the diameter of each carbon fiber is about 0.01 mm) of which the surfaces are loaded with carbon black as a cathode of the battery, taking a long-strip-shaped (30cm x 2cm) ion exchange membrane (the thickness is about 0.2 mm) as an ion separator, and wrapping the cathode of the battery in a curled manner (the inner diameter is about 0.3 cm); a nickel wire (diameter 0.1 mm) is taken as a battery anode and tightly wound outside the ion isolation body in a spiral form (thread pitch 0.8 cm). And (3) placing the functional structure in a yellow flexible heat-shrinkable tube (with the inner diameter of 0.5 cm) filled with nickel iodide electrolyte (3-4M), and packaging to obtain the flexible portable energy tube.
EXAMPLE six
Platinum-plated carbon fibers with catalytic activity are taken as a battery cathode and penetrate through a tubular ion exchange membrane (the inner diameter is 0.4cm, the length is 20cm, and the thickness is about 0.15 mm); a chromium-copper alloy strip (0.4 cm wide) is taken as a battery anode and tightly wound outside the ion isolation body in a spiral (the thread pitch is 0.6 cm). And (3) placing the functional structure in a black flexible heat-shrinkable tube (with the inner diameter of 0.6 cm) filled with chromium bromide electrolyte (2-4M), and packaging to obtain the flexible portable energy tube.
EXAMPLE seven
Taking the carbon nanotube fiber with catalytic activity as a battery cathode, taking a long-strip-shaped (30cm x 4 cm) ion exchange membrane (with the thickness of about 0.18 mm) as an ion separator, and wrapping the battery cathode in a curling mode (with the inner diameter of about 0.6 cm); a copper wire (with the diameter of 0.2 mm) is taken as a battery anode and tightly wound outside the ion isolation body in a spiral (with the thread pitch of 0.2 cm). And (3) placing the functional structure in a flexible polyethylene pipe (with the inner diameter of 1.0 cm) filled with copper bromide electrolyte (3-5M), and packaging to obtain the flexible portable energy pipe.
The flexible battery has the advantages of simple structure, abundant material sources, low cost, convenience for large-scale production, bending resistance, light weight, convenience for carrying and good application prospect.

Claims (10)

1. A flexible portable energy tube comprising: a cathode located at an innermost layer of the energy tube; an ion separator wrapping the cathode; an anode tightly wound outside the ion isolator; the cathode, the ion separator and the anode together form a functional structure of the energy tube; the functional structure is arranged in a flexible pipe filled with electrolyte.
2. The flexible portable energy tube of claim 1, wherein the cathode is flexible and bendable and has catalytically active conductive fibers; the anode is a wire-shaped or strip-shaped metal electrode.
3. The flexible portable energy tube of claim 2, wherein the conductive fibers comprise platinum wire, carbon fiber, and catalytic material modified conductive fibers.
4. The flexible portable energy tube of claim 2, wherein the wire or strip metal electrode comprises chromium, iron, cobalt, nickel, copper, and zinc.
5. The flexible portable energy tube of claim 1, wherein the ion insulator is a selective ion exchange membrane.
6. The flexible portable energy tube of claim 5, wherein the selective ion exchange membrane is an elongated or tubular shape.
7. The flexible portable energy tube of claim 1, wherein the electrolyte is an aqueous solution of bromide or iodide, wherein the metal ions are in accordance with the anodic metal element.
8. The flexible portable energy tube of claim 1, wherein the flexible tube comprises a thin walled polyethylene tube, a multicolored polyurethane tube, and a silicone tube with good flexibility and elasticity.
9. A method of making the flexible portable energy tube of any of claims 2-8, comprising the steps of:
1) Tightly winding the metal electrode outside the ion isolator;
2) Inserting conductive fibers into the ion isolator, and forming a main functional structure of the energy tube together with the metal electrode and the ion isolator;
3) And placing the functional structure in a flexible tube filled with electrolyte, and packaging to obtain the flexible portable energy tube.
10. The method of claim 9, wherein when the ion-exchange membrane having a long strip shape is used as the ion separator, the ion-exchange membrane is rolled into a column shape and tightly wound and fixed with the metal electrode; when the tubular ion exchange membrane is used as an ion isolator, the tubular ion exchange membrane is directly and tightly wound by a metal electrode.
CN201410718578.0A 2014-12-01 2014-12-01 Flexible portable energy tube and preparation method thereof Pending CN104600346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410718578.0A CN104600346A (en) 2014-12-01 2014-12-01 Flexible portable energy tube and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410718578.0A CN104600346A (en) 2014-12-01 2014-12-01 Flexible portable energy tube and preparation method thereof

Publications (1)

Publication Number Publication Date
CN104600346A true CN104600346A (en) 2015-05-06

Family

ID=53125977

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410718578.0A Pending CN104600346A (en) 2014-12-01 2014-12-01 Flexible portable energy tube and preparation method thereof

Country Status (1)

Country Link
CN (1) CN104600346A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106486691A (en) * 2015-08-26 2017-03-08 航天金洲（北京）能源科技有限公司 A kind of Graphene pile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106486691A (en) * 2015-08-26 2017-03-08 航天金洲（北京）能源科技有限公司 A kind of Graphene pile

Similar Documents

Publication Publication Date Title
Wen et al. Self-powered textile for wearable electronics by hybridizing fiber-shaped nanogenerators, solar cells, and supercapacitors
Wang et al. Hierarchical NiCo2S4@ nickel–cobalt layered double hydroxide nanotube arrays on metallic cotton yarns for flexible supercapacitors
Zamarayeva et al. Flexible and stretchable power sources for wearable electronics
Wei et al. An aqueous redox flow battery based on neutral alkali metal ferri/ferrocyanide and polysulfide electrolytes
Peng et al. Efficient fiber shaped zinc bromide batteries and dye sensitized solar cells for flexible power sources
CN106887637A (en) Self-supporting aluminium ion battery and preparation method thereof
CN107293733A (en) A kind of Dual-ion cell
Qu et al. Flexible fiber batteries for applications in smart textiles
Yensen et al. Open source all-iron battery for renewable energy storage
CN102509634A (en) Graphene-based flexible multilayer composite film and preparing method thereof
CN104795567A (en) Water system lithium-ion/sodium-ion battery based on iodide ion solution cathode and organic matter anode
CN109360970A (en) A kind of lithium sulphur one-shot battery positive electrode and preparation method thereof
Zhai et al. Flexible one-dimensional Zn-based electrochemical energy storage devices: recent progress and future perspectives
Wang et al. An electrochemical activation strategy boosted alkaline Zinc-ion battery with Ultra-high energy density
CN201773903U (en) Button lithium battery
CN203071174U (en) Solar flexible winding type rechargeable battery
CN104600346A (en) Flexible portable energy tube and preparation method thereof
CN204173960U (en) The device of purifying water body
CN203367424U (en) Capacitor battery
CN201741753U (en) Novel carbon electrode
CN107768679A (en) A kind of composite carbon alloy accumulator production technology and preparation method thereof
Lu et al. Recent Progresses of Aqueous Zinc‐Ion Batteries and Their Prospects in the Field of Smart City
Song et al. Lightweight Flexible Solid-State Supercapacitor Based On Metal–Graphene-Textile Composite Electrodes
CN104882291B (en) A kind of electrode material for super capacitor and its preparation method and application
CN206806455U (en) A kind of new power battery structure

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150506

WD01 Invention patent application deemed withdrawn after publication