CN217114446U

CN217114446U - Positive post structure and battery with same

Info

Publication number: CN217114446U
Application number: CN202220893209.5U
Authority: CN
Inventors: 叶帆; 陈泽利; 江浩; 斯科特尼提; 涂强生; 孙文杰; 王江涛; 邓新庆
Original assignee: ABLE New Energy Co Ltd
Current assignee: ABLE New Energy Co Ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-08-02
Anticipated expiration: 2032-04-18

Abstract

The embodiment of the utility model discloses positive post structure, including the column body, the side interval of the column body is equipped with a plurality of holes, the central authorities of the column body form a through-hole along its axial, the hole with the through-hole intercommunication. The utility model discloses an anodal post structure is equipped with a plurality of holes through the side interval in the column body to increase anodal surface area, the central authorities of column body are equipped with the through-hole along the axial, hole and through-hole intercommunication, thereby it supplies the deposit of battery reaction product to be unblocked in order to guarantee anodal post, negative pole and the passageway of electrolyte contact to remain sufficient space, improve the utilization ratio of discharging and the uniformity of discharging, avoid the battery because the anodal hole is not enough to appear discharging badly and the battery uses later stage voltage unstability to have phenomenons such as shake. And simultaneously, the utility model also provides a battery that has this positive post structure.

Description

Positive post structure and battery with same

Technical Field

The utility model relates to the technical field of batteries, especially, relate to a positive post structure and have battery of this positive post structure.

Background

The internal structure of the battery comprises a positive electrode, a negative electrode, a diaphragm, electrolyte and positive and negative current collectors. For thionyl chloride batteries, acetylene black or carbon black is generally used as the positive electrode, and the positive electrode is in the form of particles or carbon bags. The main function of the positive electrode is to fully soak the electrolyte, and the products of the chemical reaction of the battery are deposited in the carbon positive electrode. However, in the actual discharge process of the battery, the problem of poor discharge caused by the blockage of pores due to insufficient pores of the positive electrode often occurs, and the use of the battery is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a positive post structure and have battery of this positive post structure is provided to the anodal surface area of increase remains space power supply battery reaction product deposit.

In order to solve the technical problem, a first aspect of the present invention provides a positive pole structure, including the column body, the side interval of the column body is equipped with a plurality of holes, the central authorities of the column body form a through-hole along its axial, the hole with the through-hole intercommunication.

The further technical scheme is as follows: the front surface of the hole is circular.

The further technical scheme is as follows: the front surfaces of the holes are in a honeycomb shape.

The further technical scheme is as follows: the number of the holes is 20-25.

The further technical scheme is as follows: the range of the aperture size of the holes is 5-7 mm.

In a second aspect, the embodiment of the present invention further provides a battery, including battery case, electrolyte, negative pole and foretell positive post structure, positive post structure and negative pole are located in the battery case, just electrolyte is filled in order to separate in the battery case the negative pole with the positive post structure.

The further technical scheme is as follows: the positive pole column structure is arranged in the center of the battery shell, and the negative pole is arranged around the inner side wall of the battery shell.

The utility model has the advantages of: the utility model discloses an anodal post structure is equipped with a plurality of holes through the side interval in the column body to increase anodal surface area, the central authorities of column body are equipped with the through-hole along its axial, and hole and through-hole intercommunication, thereby it supplies battery reaction product deposit in order to guarantee anodal post, the passageway noncongestion of negative pole and electrolyte contact to remain sufficient space, improve the utilization ratio of discharging and the uniformity of discharging, avoid the battery because anodal hole is not enough and appear discharging badly and the battery uses later stage voltage unstability to have phenomenons such as shake. And simultaneously, the utility model provides a battery has above-mentioned function, and the stable performance is reliable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a positive post structure provided in an embodiment of the present invention;

fig. 2 is a graph of the capacity versus voltage of a battery using a conventional positive electrode;

fig. 3 is a diagram showing the correspondence between the capacity and the voltage of a battery using the positive post structure provided by the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a battery according to an embodiment of the present invention.

The labels in the figures illustrate: 10. a positive post structure; 11. a columnar body; 111. a hole; 112. a through hole; 20. a battery; 21. a battery case; 22. an electrolyte; 23. and a negative electrode.

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 some, not all, of the embodiments of the present invention. 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.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a positive post structure according to an embodiment of the present invention, the positive post structure 10 includes a post 11, a plurality of holes 111 are disposed at intervals on a side surface of the post 11, a through hole 112 is formed in a center of the post 11 along an axial direction of the post 11, and the holes 111 are communicated with the through hole 112.

The hole 111 may penetrate the column 11. The positive pole structure 10 can be made of acetylene black materials or carbon black materials, the positive pole structure 10 is provided with a plurality of holes 111 at intervals on the side surface of the cylindrical body 11 to increase the surface area of a positive pole, the center of the cylindrical body 11 forms a through hole 112 along the axial direction of the cylindrical body 11, and the holes 111 are communicated with the through hole 112, so that enough space is reserved for deposition of reaction products of the battery to ensure that a channel for contacting the positive pole and the negative pole with electrolyte is smooth, the discharge utilization rate and the discharge consistency are improved, and the phenomena of poor discharge of the battery due to insufficient positive pole pores and unstable and shaking of the voltage in the later use period of the battery are avoided. As shown in fig. 2 and fig. 3, fig. 2 shows the corresponding relation diagram of the capacity and the voltage of the battery using the conventional positive pole, fig. 3 shows the corresponding relation diagram of the capacity and the voltage of the battery using the positive pole structure provided by the embodiment of the present invention, the voltage of the battery using the conventional positive pole in fig. 2 fluctuates greatly in the discharging process in the later period of use, and the voltage of the battery using the positive pole structure provided by the embodiment of the present invention in fig. 3 fluctuates less in the discharging process in the later period of use, so that the discharging performance is stable and reliable.

Specifically, in the present embodiment, the front surface of the hole 111 is circular. Of course, in some embodiments, the holes 111 are honeycomb shaped.

Specifically, the number of the holes 111 is 20-25, so as to avoid production inconvenience caused by excessive and dense number of the holes 111, prevent the surface area of the anode from being reduced due to too small number of the holes 111, and avoid insufficient contact between the anode and the electrolyte.

Specifically, the range of the aperture size of the holes 111 is 5-7 mm, so that the situation that the holes are blocked after the reaction product of the battery is deposited due to the fact that the aperture size is too small, the positive electrode and the negative electrode are prevented from being in full contact with the electrolyte, and damage caused by cracking of the holes 111 due to the fact that the aperture size is too large is avoided.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a battery according to an embodiment of the present invention, the battery 20 includes a battery case 21, an electrolyte 22, a negative electrode 23, and the positive post structure 10, the positive post structure 10 and the negative electrode 23 are disposed in the battery case 21, and the electrolyte 22 is filled in the battery case 21 to separate the negative electrode 23 from the positive post structure 10.

The battery 20 comprises the positive pole structure 10, a plurality of holes 111 are arranged on the side face of the pole body 11 at intervals to increase the surface area of the positive pole, a through hole 112 is formed in the center of the pole body 11 along the axial direction, the holes 111 are communicated with the through hole 112, so that enough space is reserved for deposition of battery reaction products to ensure that channels of the positive pole structure 10 and the negative pole 23 in contact with the electrolyte 22 are smooth, the discharge utilization rate and the discharge consistency are improved, the phenomena that the battery 20 is poor in discharge due to insufficient positive pole holes and voltage instability and jitter occur in the later use period of the battery are avoided, and the performance stability and reliability of the battery 20 are ensured.

Specifically, the positive electrode pillar structure 10 is disposed in the center of the battery case 21, and the negative electrode 23 is disposed around the inner side wall of the battery case 21.

To sum up, the utility model discloses a positive post structure is equipped with a plurality of holes through the side interval in the column body to increase anodal surface area, the central authorities of column body are equipped with the through-hole along the axial, hole and through-hole intercommunication, thereby remain sufficient space and supply the deposit of battery reaction product to be unblocked in order to guarantee the passageway of positive negative pole and electrolyte contact, improve discharge utilization ratio and the uniformity of discharging, avoid the battery because the anodal hole is not enough and appear discharging badly and the battery uses later stage voltage unstability and have phenomenons such as shake. And simultaneously, the utility model provides a battery has above-mentioned function, and the stable performance is reliable.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The positive pole structure is characterized by comprising a cylindrical body, wherein a plurality of holes are formed in the side face of the cylindrical body at intervals, a through hole is formed in the center of the cylindrical body along the axial direction of the cylindrical body, and the holes are communicated with the through hole.

2. The positive post structure according to claim 1, wherein the front face of the aperture is rounded.

3. The positive post structure according to claim 1, wherein the front faces of the holes are honeycomb-shaped.

4. The positive post structure according to claim 1, wherein the number of the holes is 20 to 25.

5. The positive post structure according to claim 1, wherein the aperture size of the hole is in the range of 5 to 7 mm.

6. A battery comprising a battery case, an electrolyte, a negative electrode, and the positive electrode post structure according to any one of claims 1 to 5, wherein the positive electrode post structure and the negative electrode are provided in the battery case, and the electrolyte is filled in the battery case to separate the negative electrode from the positive electrode post structure.

7. The battery of claim 6, wherein the positive post structure is centrally disposed within the battery can and the negative electrode is disposed about an interior side wall of the battery can.