CN206516715U - A new type of button battery with winding electrodes - Google Patents

Abstract

The utility model discloses a button cell of a novel winding electrode, which comprises a cell upper cover, wherein the port of the cell upper cover is provided with insulating glue; the inner wall of the top of the inner surface of the upper cover of the battery is connected with an aluminum foil; the upper cover of the battery is connected with the lower cover of the battery through insulating glue, and the winding electrode comprises a positive electrode, a negative electrode, a positive electrode lug, a negative electrode lug and an isolating membrane; an isolating membrane is connected between the anode and the cathode; the positive lug penetrates through the first through hole and is connected to the bottom of the aluminum foil in a spot welding mode; the negative pole lug penetrates through the second through hole and is electrically connected to the inner wall of the lower cover of the battery. This novel button cell of winding electrode, through setting up battery upper cover, insulating cement, battery lower cover and winding electricity, the insulating cement not only insulates between battery upper cover, battery lower cover and the winding electrode, prevents that the winding electrode can not contact the outside air, and the purpose prevents to produce the condition of self-corrosion in charging process for button cell's long service life.

Description

A new type of button battery with winding electrodes

technical field

The utility model relates to the technical field of button batteries with winding electrodes, in particular to a novel button battery with winding electrodes.

Background technique

As far as the existing button batteries are concerned, the problem often encountered is the connection of the electrodes, especially the connection between the metal negative electrode and the shell. The metal electrode is usually punched directly into the aforementioned half of the negative shell, that is, it is pressed in under pressure. However, this operation itself still cannot ensure a good electrical connection with the shell, making the process of charging and discharging the button battery difficult. In the process, self-corrosion occurs and the service life is short.

Utility model content

The purpose of this utility model is to provide a new type of winding electrode button battery, which has the advantages of preventing self-corrosion and long service life in the process of charging and discharging, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a new type of winding electrode button battery, including a battery cover, the port of the battery cover is provided with insulating glue, and the insulating glue is evenly distributed on the battery cover; An aluminum foil is connected to the top inner wall of the inner surface of the battery top cover; a first insulating pad is provided under the aluminum foil, the first insulating pad is installed on the inner wall of the battery top cover, and a first insulating pad is provided on the front end of the first insulating pad. through holes; the battery upper cover is connected to the lower battery cover through insulating glue, a second insulating pad is provided on the inner surface of the bottom of the battery lower cover, and a second through hole is provided on the front end of the second insulating pad; the second insulating pad A winding electrode is connected to the pad; the winding electrode includes a positive pole, a negative pole, a positive pole lug, a negative pole lug and an isolation film; the positive pole and the negative pole are evenly distributed on the second insulating pad, and an isolation film is connected between the positive pole and the negative pole; The top of the negative electrode is electrically connected to a positive tab, and the positive tab is connected to the bottom of the aluminum foil by spot welding through the first through hole; the bottom of the positive electrode is electrically connected to a negative tab, and the negative tab is electrically connected through the second through hole. Connected to the inner wall of the lower battery cover.

As a further solution of the present invention: the port of the battery upper cover is arranged in the insulating glue.

As a further solution of the utility model: the battery upper cover, the lower battery cover and the winding electrodes are all cylindrical, the diameter of the lower battery cover is larger than the diameter of the battery upper cover, and the diameter of the battery upper cover is larger than the diameter of the winding electrodes.

As a further solution of the utility model: the vertical section of the battery upper cover is inverted U-shaped, the vertical section of the battery lower cover is U-shaped, and both the battery upper cover and the battery lower cover are made of stainless steel.

Compared with the prior art, the utility model has beneficial effects:

The button battery of the new winding electrode, by setting the battery upper cover, insulating glue, battery lower cover and winding electrodes, the insulating glue not only insulates the battery upper cover, battery lower cover and winding electrodes, but also plays a role of sealing. To prevent the winding electrodes from contacting the outside air, the positive lugs in the winding electrodes are spot-welded to the bottom of the aluminum foil to prevent self-corrosion during the charging process, so that the button battery has a long service life and a long storage time of electric energy.

Description of drawings

Fig. 1 is a structural diagram of the utility model;

Fig. 2 is a partial sectional view of the utility model.

In the figure: 1-battery upper cover; 11-insulating glue; 12-aluminum foil; 13-first insulating pad; 131-first through hole; 2-battery lower cover; 3-second insulating pad; 31-second pass Hole; 4-winding electrode; 41-positive pole; 42-negative pole; 43-positive pole ear; 44-negative pole ear; 45-isolating film.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-2, in the embodiment of the utility model, a button battery of a new winding electrode includes a battery cover 1, an insulating glue 11 is provided on the port of the battery cover 1, and the port of the battery cover 1 is set on In the insulating glue 11, the insulating glue 11 wraps the port of the battery upper cover 1, and the insulating glue 11 is evenly distributed on the battery upper cover 1. Due to the protection of the insulating glue 11, the battery upper cover 1 will not touch the winding electrodes 4, and at the same time Due to the function of sealing, the winding electrodes 4 will not be in contact with the air; the inner surface of the battery cover 1 is connected to the top inner wall of the aluminum foil 12, the surface of the aluminum foil 12 adopts a conductive coating, and the aluminum foil 12 is soft to wrap the battery and the aluminum foil 12 is light in weight; There is a first insulating pad 13 under the aluminum foil 12. The first insulating pad 13 prevents the aluminum foil 12 from contacting the winding electrodes 4. The first insulating pad 13 is installed on the inner wall of the battery cover 1. The first insulating pad 13 is very safe. 12, the front end of the first insulating pad 13 is provided with a first through hole 131, the first through hole 131 is circular; the battery upper cover 1 is connected with the lower battery cover 2 through the insulating glue 11, and the vertical The section is inverted U-shaped, and the vertical section of the lower battery cover 2 is U-shaped. Both the upper battery cover 1 and the lower battery cover 2 are made of stainless steel. The cover 1 is buckled upside down between the lower battery cover 2 and connected by insulating glue 11. The stainless steel material prevents the upper battery cover 1 and the lower battery cover 2 from rusting when placed, which affects the use of the button battery. The bottom of the lower battery cover 2 The second insulating pad 3 is provided on the surface, and the effect of the second insulating pad 3 is the same as that of the first insulating pad 13. The front end of the second insulating pad 3 is provided with a second through hole 31, and the second through hole 31 is also set as a circle. shape; the second insulating pad 3 is connected with a winding electrode 4, the battery upper cover 1, the battery lower cover 2 and the winding electrode 4 are all set as cylinders, the diameter of the battery lower cover 2 is greater than the diameter of the battery upper cover 1, and the battery upper cover 1 The diameter of the winding electrode 4 is greater than that of the winding electrode 4. The battery upper cover 1 is set in the battery lower cover 2. The diameter of the battery upper cover 1 is smaller than the diameter of the battery lower cover 2. The winding electrode 4 is set in the battery upper cover 1 and the battery lower cover 2. Inside the formed casing, the diameter of the winding electrode 4 is smaller than the battery upper cover 1 and the battery lower cover 2, and the winding electrode 4 is the main part of the button battery to generate electric energy; the winding electrode 4 includes a positive pole 41, a negative pole 42, a positive pole ear 43, and a negative pole ear 44 and separator 45; positive pole 41 and negative pole 42 are evenly distributed on insulating pad 3, positive pole 41 and negative pole 42 are alternately arranged, and separator 45 is connected between positive pole 41 and negative pole 42, and separator 45 can separate positive pole 41 and negative pole 42 , so that the positive pole 41 and the negative pole 42 will not be connected, so as to protect the winding electrode 4; the top of the negative pole 42 is electrically connected to the positive pole ear 43, the positive pole ear 43 is the rubber strip connected to the negative pole 42, and the positive pole ear 43 passes through the first The through hole 131 is connected to the bottom of the aluminum foil 12 by spot welding, which is equivalent to one end of the negative electrode 42 being electrically connected to the aluminum foil 12, in order to prevent self-corrosion during the charging process; the bottom of the positive electrode 41 is electrically connected to the negative electrode ear 44 , the negative tab 44 is also the rubber strip connected to the positive pole 41, The negative tab 44 is electrically connected to the inner wall of the lower battery cover 2 through the second through hole 31 , and one end corresponding to the positive electrode 41 is electrically connected to the lower battery cover 2 .

To sum up; the button battery of the new winding electrode, by setting the battery upper cover 1, the insulating glue 11, the battery lower cover 2 and the winding electrode 4, the insulating glue 11 not only connects the battery upper cover 1, the battery lower cover 2 and the winding electrode 4 are insulated, and at the same time play the role of sealing to prevent the winding electrode 4 from contacting the outside air. The positive tab 43 in the winding electrode 4 is connected to the bottom of the aluminum foil 12 by spot welding to prevent self-corrosion during the charging process. The condition of the button battery makes the service life of the button battery long and the time of electric energy storage is long.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (4)

1. A button cell of a novel winding electrode, comprising a battery top cover (1), characterized in that: the port of the battery top cover (1) is provided with insulating glue (11), and the insulating glue (11) is evenly distributed on the On the battery loam cake (1); the inner surface top inner wall of the battery loam cake (1) is connected with an aluminum foil (12); the bottom of the aluminum foil (12) is provided with a first insulating pad (13), and the first insulator The pad (13) is installed on the inner wall of the battery cover (1), and the front end of the first insulating pad (13) is provided with a first through hole (131); the battery cover (1) is connected by insulating glue (11) There is a lower battery cover (2), the inner surface of the bottom of the lower battery cover (2) is provided with a second insulating pad (3), and the front end of the second insulating pad (3) is provided with a second through hole (31); The second insulating pad (3) is connected with a winding electrode (4); the winding electrode (4) includes a positive pole (41), a negative pole (42), a positive pole ear (43), a negative pole ear (44) and an isolation film ( 45); the positive pole (41) and the negative pole (42) are evenly distributed on the second insulating pad (3), and a separator (45) is connected between the positive pole (41) and the negative pole (42); the negative pole The top of (42) is electrically connected with a positive pole ear (43), and the positive pole ear (43) is connected to the bottom of the aluminum foil (12) by spot welding through the first through hole (131); the bottom of the positive pole (41) is electrically connected A negative pole ear (44) is connected, and the negative pole ear (44) is electrically connected to the inner wall of the lower battery cover (2) through the second through hole (31). 2. A novel winding electrode button battery according to claim 1, characterized in that: the port of the battery upper cover (1) is set in the insulating glue (11). 3. The button battery of a new type of winding electrode according to claim 1, characterized in that: the battery upper cover (1), the lower battery cover (2) and the winding electrode (4) are all set as cylinders, and the lower battery The diameter of the cover (2) is larger than the diameter of the battery upper cover (1), and the diameter of the battery upper cover (1) is larger than the diameter of the winding electrode (4). 4. The button battery of a new type of winding electrode according to claim 1, characterized in that: the vertical section of the battery upper cover (1) is inverted U-shaped, and the vertical section of the battery lower cover (2) is U-shaped , the battery upper cover (1) and the lower battery cover (2) are all made of stainless steel.