CN215266393U

CN215266393U - Flow battery device

Info

Publication number: CN215266393U
Application number: CN202121574718.3U
Authority: CN
Inventors: 吴沣; 陈文来; 聂孟威; 梁冉; 李聃华; 杨家山; 姜鹏; 杜国强; 李紫燕; 华明村; 李超超; 刘巍; 曹辉
Original assignee: Kaifeng Pingmei New Carbon Material Technology Co ltd
Current assignee: Kaifeng Times New Energy Technology Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-21
Anticipated expiration: 2031-07-12

Abstract

The utility model belongs to the technical field of the new forms of energy material, a flow battery device is related to, wherein, which comprises an outer shell body, the inside of shell body is provided with electrolyte runner and electrolyte distribution manifold, the inside of shell body is provided with the proton membrane. The flow battery device has the advantages that the flow battery device is porous through the arrangement of the cathode diffusion plate and the anode diffusion plate, the use of the finger-shaped flow channel diffusion plate is realized, the uniform degree of electrolyte distribution can be improved, more battery reaction places can be provided, the battery reaction efficiency is improved, the outer shell 1 is provided with the electrolyte flow channel and the electrolyte distribution manifold through the arrangement of the outer shell, the use of a sealing part is reduced, the outer shell plays a role in supporting a battery cell structure, the flow channel is provided for the electrolyte, the electrolyte is uniformly distributed, the overall structure of a galvanic pile can be simplified, and the operation stability of the galvanic pile is improved.

Description

Flow battery device

Technical Field

The utility model belongs to the technical field of the new forms of energy material, concretely relates to flow battery device.

Background

The redox flow battery is also called as a flow battery, has the advantages of high efficiency, long cycle life, power modularization, customizable capacity, high safety, environmental friendliness, low cost and the like, is mainly applied to the three fields of photovoltaic power generation, wind power generation and peak-valley energy storage at present, and is one of key technologies by which green energy can be popularized and applied in a larger scale. The flow battery is a high-performance energy storage battery which utilizes the separation and respective circulation of positive and negative electrolytes. However, the existing liquid battery not only has low reaction rate, but also has unstable operation.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a flow battery device, it has solved the technical problem that reaction rate is low and the operation is stable inadequately.

In order to achieve the above object, the utility model provides a following technical scheme: the flow battery device comprises an outer shell, wherein an electrolyte flow channel and an electrolyte distribution manifold are arranged inside the outer shell, a proton membrane is arranged inside the outer shell, a cathode plate and an anode plate are respectively arranged on two sides of the proton membrane, a cathode diffusion plate is arranged on the other side of the cathode plate, and an anode diffusion plate is arranged on the other side of the anode plate.

As a further aspect of the present invention: the shell body is made of an insulating material.

As a further aspect of the present invention: and both sides of the proton membrane are fixedly connected to the inner wall of the outer shell.

As a further aspect of the present invention: the negative plate and the positive plate are both made of impervious high-density graphite.

As a further aspect of the present invention: the cathode diffusion plate and the anode diffusion plate are both processed by high-permeability macroporous graphite, parallel flow channels are processed on the cathode diffusion plate and the anode diffusion plate, one surfaces of the cathode diffusion plate and the anode diffusion plate are provided with finger-shaped flow channels, and the other surfaces of the cathode diffusion plate and the anode diffusion plate are of permeable and porous section structures.

As a further aspect of the present invention: a liquid inlet and a liquid outlet are formed in the outer shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the flow cell device realizes the use of a porous diffusion plate with finger-shaped flow channels by arranging the cathode diffusion plate and the anode diffusion plate, can improve the uniform distribution degree of electrolyte, and can provide more cell reaction sites and improve the cell reaction efficiency.

2. This redox flow battery device through the setting of shell body, electrolyte runner and electrolyte distribution manifold, realizes that the shell body has electrolyte runner and electrolyte distribution manifold, has reduced sealing member's use, makes the shell body play the effect of supporting electric core structure, still provides the effect of runner and evenly distributed electrolyte for electrolyte, can simplify the overall structure of pile, improves the operating stability of pile.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the flow direction of the electrolyte according to the present invention;

in the figure: 1. an outer housing; 2. a cathode plate; 3. a cathode diffusion plate; 4. a proton membrane; 5. an anode diffusion plate; 6. an anode plate; 7. a liquid inlet; 8. a liquid outlet; 9. an electrolyte flow channel; 10. an electrolyte distribution manifold.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a flow battery device comprises a shell body 1, an electrolyte flow channel 9 and an electrolyte distribution manifold 10 in the shell body 1 are realized through the arrangement of the shell body 1, the electrolyte flow channel 9 and the electrolyte distribution manifold 10, the use of sealing components is reduced, the shell body 1 plays a role in supporting a battery cell structure, the flow channel is also provided for electrolyte, the function of uniformly distributing the electrolyte is also provided, the overall structure of a pile can be simplified, the running stability of the pile is improved, the electrolyte flow channel 9 and the electrolyte distribution manifold 10 are arranged in the shell body 1, a proton membrane 4 is arranged in the shell body 1, a cathode plate 2 and an anode plate 6 are respectively arranged on two sides of the proton membrane 4, a cathode diffusion plate 3 is arranged on the other side of the cathode plate 2, an anode diffusion plate 5 is arranged on the other side of the anode plate 6, through the arrangement of the cathode diffusion plate 3 and the anode diffusion plate 5, the diffusion plate with the porous finger-shaped flow passages is used, so that the uniformity of electrolyte distribution can be improved, more cell reaction sites can be provided, and the cell reaction efficiency can be improved.

Specifically, as shown in fig. 1, 2 and 3, the material of the outer shell 1 is made of an insulating material, the two sides of the proton membrane 4 are fixedly connected to the inner wall of the outer shell 1, the cathode plate 2 and the anode plate 6 are made of impervious high-density graphite, the cathode diffusion plate 3 and the anode diffusion plate 5 are made of high-permeability large-pore graphite, parallel flow channels are processed on the cathode diffusion plate 3 and the anode diffusion plate 5, the cathode diffusion plate 3 and the anode diffusion plate 5 are finger-shaped flow channels, one surface of each of the cathode diffusion plate 3 and the anode diffusion plate 5 is permeable, and is of a porous section structure, and a liquid inlet 7 and a liquid outlet 8 are formed in the outer shell 1.

The utility model discloses a theory of operation does:

s1, when the flow battery device is used, electrolyte in an electrolyte storage tank outside the battery respectively enters the positive and negative electrode pipelines through a liquid inlet 7, and the electrolyte entering the positive and negative electrode pipelines enters the inlet finger-shaped flow channels through an electrolyte flow channel 9 and an electrolyte distribution manifold 10;

s2, when the electrolyte enters into the adjacent outlet finger flow channel through the hole of the diffusion plate, the cell reaction occurs at the same time, the electrons are led out or led in through the bipolar plate contacting with the parallel flow channel wall of the diffusion plate, and H ions or anions enter or leave the cell through the proton membrane 4;

and S3, collecting the reacted electrolyte in the outlet finger-shaped flow channel, collecting the electrolyte in the electrolyte flow channel 9 through the electrolyte distribution manifold 10, and returning the electrolyte to an electrolyte storage tank outside the battery through the liquid outlet 8 to complete one charge or discharge cycle.

While embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, alterations, substitutions and variations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A flow battery device comprising an outer case (1), characterized in that: the electrolyte distribution type lithium ion battery is characterized in that an electrolyte flow channel (9) and an electrolyte distribution manifold (10) are arranged inside the outer shell (1), a proton membrane (4) is arranged inside the outer shell (1), a cathode plate (2) and an anode plate (6) are respectively arranged on two sides of the proton membrane (4), a cathode diffusion plate (3) is arranged on the other side of the cathode plate (2), and an anode diffusion plate (5) is arranged on the other side of the anode plate (6).

2. A flow battery apparatus as claimed in claim 1, wherein: the shell body (1) is made of insulating materials.

3. A flow battery apparatus as claimed in claim 1, wherein: and both sides of the proton membrane (4) are fixedly connected to the inner wall of the outer shell (1).

4. A flow battery apparatus as claimed in claim 1, wherein: the cathode plate (2) and the anode plate (6) are both made of impervious high-density graphite.

5. A flow battery apparatus as claimed in claim 1, wherein: the cathode diffusion plate (3) and the anode diffusion plate (5) are both made of high-permeability macroporous graphite, parallel flow channels are processed on the cathode diffusion plate (3) and the anode diffusion plate (5), and the cathode diffusion plate (3) and the anode diffusion plate (5) are of cross-sectional structures with finger-shaped flow channels on one surface and water permeability and porosity on the other surface.

6. A flow battery apparatus as claimed in claim 1, wherein: the shell body (1) is provided with a liquid inlet (7) and a liquid outlet (8).