CN214625107U

CN214625107U - 3V lithium primary battery structure

Info

Publication number: CN214625107U
Application number: CN202120256062.4U
Authority: CN
Inventors: 李朋朋; 浦玉猛; 徐旖旎; 郝金蕾; 罗建新; 张衍西; 李元卫
Original assignee: Shuangkuo Energy Luoyang Co ltd
Current assignee: Shuangkuo Energy Luoyang Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-11-05
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a 3V lithium primary cell structure, including shell, positive pole, negative pole and mounting panel and battery case, be equipped with electrolyte between positive pole and the negative pole, the positive pole comprises manganese dioxide, conductive agent, binder, the electrically conductive mass flow body, the below of positive pole is equipped with the apron, the upper end of mounting panel is run through and is equipped with two rectangular channels, the equal fixedly connected with fixture block in both ends of battery case, two the one end that the fixture block carried on the back mutually all runs through and is equipped with the draw-in groove, two be equipped with installation mechanism between fixture block and two rectangular channels. The utility model discloses, rational in infrastructure, the inside active material's that can fill of multiplicable battery volume improves battery capacity, and increases two-layer gasket between anodal and the apron, can effectively prevent the inside short circuit that appears of battery, promotes the product voltage qualification rate, secondly, conveniently dismantles and changes the battery case, conveniently maintains, changes the battery.

Description

3V lithium primary battery structure

Technical Field

The application belongs to the technical field of lithium batteries, and particularly relates to a 3V lithium primary battery structure.

Background

The cylindrical lithium manganese battery has the characteristics of high capacity, stable high working voltage, low self-discharge rate, wide working temperature range and the like. The existing cylindrical lithium manganese batteries are classified into power type batteries and energy type batteries. The energy type battery requires a high battery capacity and is suitable for some electric devices discharging at a low current, so that the pursuit of a battery with a higher capacity is an urgent need in the market. The capacity of the traditional CR14250 capacity type battery is 850 mAh. It is difficult for all the more demanding consumers to meet the requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the 3V lithium primary cell structure that proposes, the inside active material's that can fill of its multiplicable battery volume improves battery capacity, and increases two-layer gasket between anodal and the apron, can effectively prevent the inside short circuit that appears of battery, promotes the product voltage qualification rate, secondly, conveniently dismantles and changes the battery case, and the convenience is maintained, is changed the battery.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a 3V lithium primary cell structure, includes shell, anodal, negative pole and mounting panel and battery case, be equipped with electrolyte between anodal and the negative pole, anodal comprises manganese dioxide, conductive agent, binder, the current collector body of leading to electricity, anodal below is equipped with the apron, the upper end of mounting panel is run through and is equipped with two rectangular channels, the equal fixedly connected with fixture block in both ends of battery case, two the fixture block one end that carries on the back mutually all runs through and is equipped with the draw-in groove, two be equipped with installation mechanism between fixture block and two rectangular channels.

Preferably, two layers of gaskets are arranged between the positive electrode and the cover plate.

Preferably, installation mechanism include with the upper end fixed connection's of mounting panel telescopic link, the cover is equipped with first spring on the telescopic link, the common fixedly connected with T-shaped piece in upper end of telescopic link and first spring.

Preferably, the inner wall fixedly connected with second spring of rectangular channel, second spring fixedly connected with stopper, the stopper run through the draw-in groove and rather than inner wall sliding connection, the stopper is kept away from the first wedge of the one end fixedly connected with of battery case, the lower extreme fixedly connected with second wedge of T-shaped piece.

Preferably, the opposite surface of the first wedge-shaped block and the second wedge-shaped block is set as a first inclined surface, the opposite surface of the second wedge-shaped block and the first wedge-shaped block is set as a second inclined surface, and the first inclined surface is matched with the second inclined surface.

Preferably, the upper end of the limiting block penetrates through a limiting groove, the lower end of the T-shaped block is fixedly connected with a supporting block, and the supporting block penetrates through the clamping block and the limiting groove in sequence and is connected with the inner wall of the clamping block in a sliding mode.

Compared with the prior art, the utility model, its beneficial effect does:

1. the conductive current collector is embedded into the positive electrode powder in a pressing and binding mode, so that the occupation of the internal space of the battery is reduced, the quantity of active substances which can be filled in the battery is increased, and the capacity of the battery is improved.

2. Two layers of gaskets are additionally arranged between the positive electrode and the cover plate, so that short circuit inside the battery can be effectively prevented, and the product voltage qualified rate is improved.

3. The battery box and the mounting plate are convenient to detach and mount, and batteries in the battery box can be maintained and replaced conveniently.

To sum up, the inside active material's that can fill of multiplicable battery volume improves battery capacity, and increases two-layer gasket between anodal and the apron, can effectively prevent the inside short circuit that appears of battery, promotes the product voltage qualification rate, secondly, conveniently dismantles and changes the battery case, conveniently maintains, changes the battery.

Drawings

Fig. 1 is a schematic structural diagram of a 3V lithium primary battery structure according to the present invention;

fig. 2 is a cross-sectional view of a battery box and a mounting plate in a 3V lithium primary battery structure according to the present invention;

fig. 3 is an enlarged view of a structure a in fig. 1.

In the figure: the battery comprises a cover plate 1, a battery box 2, a 3T-shaped block, a 4 first spring, a 5 mounting plate, a 6 limiting block, a 7 second spring, a 8 first wedge-shaped block, a 9 second wedge-shaped block, a 10 telescopic rod, a 11 abutting block, a 12 clamping block, a 13 positive pole, a 14 shell, a 15 negative pole and 16 electrolyte.

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.

Referring to fig. 1-3, a 3V lithium primary battery structure, including shell 14, positive pole 13, negative pole 15 and mounting panel 5 and battery case 2, be equipped with electrolyte 16 between positive pole 13 and the negative pole 15, can effectively prevent the short circuit to appear in the battery, promote the product voltage qualification rate, the battery adopts CR14250 capacity type to be listed, the battery capacity can reach 1050 mAh.

Taking the CR14250 capacity type as an example, the battery capacity reaches 1050mAh, which is improved by more than 20% compared with the conventional battery capacity. The following is a comparison of the discharge capacities of the two batteries.

Type of battery	Nominal current 0.5mA discharge capacity	Large current 7mA discharge capacity
			Conventional CR14250 volumetric type	850mAh	650mAh
This design CR14250 volumetric type	1093mAh	918mAh

The positive electrode 13 is composed of manganese dioxide, a conductive agent, a binder and a conductive current collector, and the conductive current collector is embedded into the powder of the positive electrode 13 in a pressing and binding mode, so that the occupation of the internal space of the battery is reduced, the quantity of active substances which can be filled in the battery is increased, and the capacity of the battery is improved.

A cover plate 1 is arranged below the anode 13, and two layers of gaskets are arranged between the anode 13 and the cover plate 1. The following is a comparison of the two cell voltage yields.

Type of battery	Pass rate of voltage more than or equal to 3.20V
		Conventional CR14250 volumetric type	97.4%
This design CR14250 volumetric type	99.3%

The upper end of mounting panel 5 is run through and is equipped with two rectangular channels, the equal fixedly connected with fixture block 12 in both ends of battery case 2, the one end that two fixture blocks 12 carried on the back mutually all runs through and is equipped with the draw-in groove, be equipped with installation mechanism between two fixture blocks 12 and two rectangular channels, installation mechanism include with mounting panel 5's upper end fixed connection's telescopic link 10, the cover is equipped with first spring 4 on the telescopic link 10, telescopic link 10 and first spring 4's the common fixedly connected with T-shaped piece 3 in upper end, the inner wall fixedly connected with second spring 7 of rectangular channel, 7 fixedly connected with stopper 6 of second spring, stopper 6 runs through the draw-in groove and rather than inner wall sliding connection, two draw-in grooves are spacing to two stoppers 6.

The first wedge of one end fixedly connected with 8 of battery case 2 is kept away from to stopper 6, the lower extreme fixedly connected with second wedge 9 of T-shaped piece 3, the one side that first wedge 8 is relative with second wedge 9 is established to first inclined plane, the one side that second wedge 9 is relative with first wedge 8 is established to the second inclined plane, first inclined plane cooperatees with the second inclined plane, the upper end of stopper 6 is run through and is equipped with the spacing groove, the lower extreme fixedly connected with of T-shaped piece 3 supports piece 11, support piece 11 run through fixture block 12 and spacing groove in proper order and rather than inner wall sliding connection, two spacing grooves are spacing to two fixture blocks 12.

The utility model discloses in, when the staff installs battery case 2, upwards stimulate two T-shaped blocks 3, two support piece 11 no longer carry on spacingly to stopper 6, the first inclined plane and the second inclined plane of homonymy are no longer extruded each other simultaneously, under the elasticity of two second springs 7, two stopper 6 back of the body move, put the upper end of mounting panel 5 with battery case 2, no longer stimulate two T-shaped blocks 3, under two first springs 4 spacing, the first wedge 8 of second wedge 9 extrusion of homonymy, two first wedge 8 drive two stopper 6 relative movement together, until two stopper 6 blocks advance two draw-in grooves, support piece 11 blocks simultaneously and advance in the spacing groove, accomplish promptly and fix battery case 2 and mounting panel 5, on the contrary, when battery case 2 is dismantled to needs, upwards stimulate two T-shaped blocks 3 can.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a 3V lithium primary cell structure, includes shell (14), anodal (13), negative pole (15) and mounting panel (5) and battery case (2), its characterized in that, be equipped with electrolyte (16) between anodal (13) and negative pole (15), the below of anodal (13) is equipped with apron (1), the upper end of mounting panel (5) is run through and is equipped with two rectangular channels, the equal fixedly connected with fixture block (12) in both ends of battery case (2), two the one end that blocks (12) are carried on the back mutually all runs through and is equipped with the draw-in groove, two be equipped with installation mechanism between fixture block (12) and two rectangular channels.

2. A 3V lithium primary battery structure according to claim 1, characterized in that two layers of gaskets are provided between the positive electrode (13) and the cover plate (1).

3. The 3V lithium primary battery structure according to claim 1, wherein the mounting mechanism comprises a telescopic rod (10) fixedly connected with the upper end of the mounting plate (5), the telescopic rod (10) is sleeved with a first spring (4), and the telescopic rod (10) and the upper end of the first spring (4) are fixedly connected with a T-shaped block (3).

4. The 3V lithium primary battery structure according to claim 3, wherein a second spring (7) is fixedly connected to the inner wall of the rectangular groove, a limiting block (6) is fixedly connected to the second spring (7), the limiting block (6) penetrates through the clamping groove and is slidably connected with the inner wall of the clamping groove, a first wedge block (8) is fixedly connected to one end, away from the battery box (2), of the limiting block (6), and a second wedge block (9) is fixedly connected to the lower end of the T-shaped block (3).

5. The 3V lithium primary battery structure according to claim 4, wherein the surface of the first wedge-shaped block (8) opposite to the second wedge-shaped block (9) is provided with a first inclined surface, the surface of the second wedge-shaped block (9) opposite to the first wedge-shaped block (8) is provided with a second inclined surface, and the first inclined surface and the second inclined surface are matched.

6. The 3V lithium primary battery structure according to claim 4, wherein a limiting groove is formed in the upper end of the limiting block (6) in a penetrating mode, a resisting block (11) is fixedly connected to the lower end of the T-shaped block (3), and the resisting block (11) penetrates through the clamping block (12) and the limiting groove in sequence and is connected with the inner wall of the limiting groove in a sliding mode.