A low self-discharge green battery

Abstract

The utility model provides a low self-discharge green battery, which relates to the technical field of batteries. The utility model is used to solve the technical problem that the existing nickel-hydrogen battery uses zinc-added nickel hydroxide and rare earth additives to make the positive electrode, the battery self-discharge is large, and the battery power is wasted. The low self-discharge green battery includes a zinc cylinder, a first insulating sheet is installed at the upper end of the zinc cylinder, a positive pole is installed on the first insulating sheet, the positive pole penetrates the first insulating sheet, a negative pole is embedded at the lower end of the zinc cylinder, a graphite rod is fixed on the negative pole, a second insulating sheet is installed on the negative pole, the graphite rod penetrates the second insulating sheet, a special positive pole is installed on the first insulating sheet, and the special positive pole is fixedly connected to the positive pole. The special positive pole made by pure cobalt-coated nickel hydroxide can reduce the electron leakage rate, reduce the battery self-discharge, and achieve the effect of low battery self-discharge.

Description

Technical Field

[0001] The utility model provides a low self-discharge green battery, which relates to the technical field of batteries. Background Art

[0002] A battery refers to a cup, trough or other container or part of the space of a composite container that contains an electrolyte solution and metal electrodes to generate electric current. It is a device that can convert chemical energy into electrical energy and has a positive electrode and a negative electrode. A battery containing a certain amount of power will lose some of its capacity after being stored for a period of time at a certain temperature. This is self-discharge.

[0003] MH / Ni batteries have significant advantages such as high mass-to-capacity, fast charging, no memory effect, low pollution, and long life, and are known as "green batteries" in the battery industry. Existing nickel-hydrogen battery positive electrode formulas usually use zinc-added nickel hydroxide with rare earth additives to make positive electrodes, and AB5-type cobalt-containing hydrogen storage alloys to produce negative electrodes. The self-discharge of the produced batteries is large, resulting in a waste of battery power.

[0004] Therefore, it is necessary to provide a low self-discharge green battery, which can reduce the self-discharge efficiency of the battery by setting a special positive electrode sheet. Utility Model Content

[0005] In order to overcome the shortcomings of existing nickel-hydrogen batteries that use zinc-added nickel hydroxide with rare earth additives to make positive electrodes, the battery has large self-discharge, resulting in battery power waste, the utility model provides a low self-discharge green battery, which reduces the battery self-discharge efficiency by setting a special positive electrode sheet.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solutions: a low self-discharge green battery, comprising a zinc cylinder, a first insulating sheet, a positive electrode column, a second insulating sheet, a negative electrode sheet and a graphite rod, wherein the first insulating sheet is installed at the upper end of the zinc cylinder, the positive electrode column is installed on the first insulating sheet, the positive electrode column penetrates the first insulating sheet, the negative electrode sheet is embedded at the lower end of the zinc cylinder, the graphite rod is fixedly connected to the negative electrode sheet, the second insulating sheet is installed on the negative electrode sheet, the graphite rod penetrates the second insulating sheet, and also comprises a special positive electrode sheet, the special positive electrode sheet is installed on the first insulating sheet, and the special positive electrode sheet is fixedly connected to the positive electrode column.

[0007] In one embodiment, the special positive electrode plate is made of pure cobalt-coated nickel hydroxide.

[0008] In one of the embodiments, it also includes a separation tube fixedly connected to the special positive electrode sheet, and a blocking plate is fixedly connected to the top of the separation tube.

[0009] In one embodiment, the partition tube and the blocking plate are made of insulating material.

[0010] In one of the embodiments, an energy focusing ring is installed on the second insulating sheet, and the graphite rod penetrates and contacts the energy focusing ring.

[0011] In one embodiment, a diaphragm is disposed on the inner wall of the zinc cylinder.

[0012] In one embodiment, a shell is provided on the zinc cylinder.

[0013] Compared with the prior art, the battery provided by the embodiment of the utility model has the following advantages: 1. The special positive electrode sheet made of pure cobalt-coated nickel hydroxide can reduce the electron leakage rate, reduce the battery self-discharge, and achieve the effect of low battery self-discharge.

[0014] 2. The normal ions and the lost ions are separated by the separation tube, and the lost ions are separated by the barrier plate from the special positive electrode, so as to avoid the self-discharge phenomenon caused by the negative electrode's electricity returning to the positive electrode.

[0015] 3. The energy-gathering ring can appropriately prevent the battery from self-discharging, and the diaphragm can prevent electrons from leaking to the outside through the zinc cylinder, thereby preventing the battery from self-discharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 The utility model is a three-dimensional cross-sectional structural schematic diagram of the positive electrode column, the negative electrode sheet and the graphite rod.

[0018] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the energy-gathering ring, diaphragm and shell of the utility model.

[0019] In the above figures: 1: zinc cylinder, 2: special positive electrode sheet, 3: first insulating sheet, 4: positive electrode column, 5: second insulating sheet, 6: negative electrode sheet, 7: graphite rod, 8: separation cylinder, 9: barrier plate, 10: energy focusing ring, 11: diaphragm, 12: outer shell. DETAILED DESCRIPTION

[0020] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] Example 1: A low self-discharge green battery, see Figure 1 and Figure 2As shown, it includes a zinc cylinder 1, a first insulating sheet 3, a positive electrode column 4, a second insulating sheet 5, a negative electrode sheet 6 and a graphite rod 7. The first insulating sheet 3 is installed at the upper end of the zinc cylinder 1 by welding, and the positive electrode column 4 is installed on the top of the first insulating sheet 3 by welding. The positive electrode column 4 penetrates the first insulating sheet 3. The negative electrode sheet 6 is embedded at the lower end of the zinc cylinder 1. The graphite rod 7 is fixedly connected to the top of the negative electrode sheet 6. The graphite rod 7 is located inside the zinc cylinder 1. The second insulating sheet 5 is installed on the top of the negative electrode sheet 6 by welding. The graphite rod 7 penetrates the second insulating sheet 5. It also includes a special positive electrode sheet 2. The special positive electrode sheet 2 is installed on the lower part of the first insulating sheet 3 by welding. The special positive electrode sheet 2 is located inside the zinc cylinder 1. The special positive electrode sheet 2 is fixedly connected to the positive electrode column 4. The special positive electrode sheet 2 is made of pure cobalt-coated nickel hydroxide to reduce the probability of self-discharge caused by ion leakage.

[0022] When the battery is in use, the electric ions in the zinc cylinder 1 are conducted to the positive electrode column 4 through the special positive electrode sheet 2, and the positive electrode column 4 outputs the electric energy. After passing through the electrical appliance, the electric energy is received by the negative electrode sheet 6, and the ions enter the electrolyte in the zinc cylinder 1 through the graphite rod 7 to complete the output of electric energy. When the battery is not in use, the special positive electrode sheet 2 made of pure cobalt-coated nickel hydroxide can reduce the electron leakage rate and reduce the self-discharge of the battery.

[0023] Example 2: Based on Example 1, refer to Figure 2 As shown, it also includes a separation tube 8 fixedly connected to the bottom of the special positive electrode sheet 2, and a barrier plate 9 is fixedly connected to the top of the separation tube 8. The separation tube 8 and the barrier plate 9 are made of insulating materials to prevent ions from being conducted to the positive electrode part.

[0024] When the ions return from the negative electrode sheet 6 through the graphite rod 7 and enter the zinc cylinder 1, the ions are stored in the separation cylinder 8, separating the normal ions from the lost ions, preventing the negative electrode's electricity from returning to the positive electrode and self-discharging. The barrier plate 9 can prevent the lost ions from directly contacting the special positive electrode sheet 2.

[0025] See also Figure 3 As shown, an energy focusing ring 10 is installed on the top of the second insulating sheet 5 by welding, the graphite rod 7 penetrates and contacts the energy focusing ring 10, a diaphragm 11 is provided on the inner wall of the zinc cylinder 1 to prevent electron leakage, and a shell 12 is provided on the outside of the zinc cylinder 1.

[0026] The energy-gathering ring 10 can appropriately prevent the battery from self-discharging and extend the battery life; the diaphragm 11 can prevent electrons from leaking to the outside through the zinc cylinder 1 and prevent the battery from self-discharging; the shell 12 is used to protect the zinc cylinder 1 and prevent the zinc cylinder 1 from being damaged and causing the electrolyte to be exposed.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A low self-discharge green battery, comprising a zinc cylinder (1), a first insulating sheet (3), a positive electrode column (4), a second insulating sheet (5), a negative electrode sheet (6) and a graphite rod (7), wherein the first insulating sheet (3) is installed at the upper end of the zinc cylinder (1), the positive electrode column (4) is installed on the first insulating sheet (3), the positive electrode column (4) penetrates the first insulating sheet (3), the negative electrode sheet (6) is embedded at the lower end of the zinc cylinder (1), the graphite rod (7) is fixedly connected to the negative electrode sheet (6), the second insulating sheet (5) is installed on the negative electrode sheet (6), and the graphite rod (7) penetrates the second insulating sheet (5), wherein: It also comprises a special positive electrode sheet (2), the special positive electrode sheet (2) is mounted on the first insulating sheet (3), and the special positive electrode sheet (2) is fixedly connected to the positive electrode column (4).

2. A low self-discharge green battery according to claim 1, characterized in that: The specially made positive electrode sheet (2) is made of pure cobalt-coated nickel hydroxide.

3. A low self-discharge green battery according to claim 1, characterized in that: It also includes a separation tube (8) fixedly connected to the special positive electrode sheet (2), and a blocking plate (9) is fixedly connected to the top of the separation tube (8).

4. A low self-discharge green battery according to claim 3, characterized in that: The partition cylinder (8) and the blocking plate (9) are made of insulating materials.

5. A low self-discharge green battery according to claim 1, characterized in that: An energy focusing ring (10) is installed on the second insulating sheet (5), and the graphite rod (7) penetrates and contacts the energy focusing ring (10).

6. A low self-discharge green battery according to claim 1, characterized in that: A diaphragm (11) is arranged on the inner wall of the zinc cylinder (1).

7. A low self-discharge green battery according to claim 1, characterized in that: The zinc cylinder (1) is sleeved with an outer shell (12).

Images