Alkali manganese battery structure with base on positive electrode

Abstract

The utility model belongs to the field of battery structures, and particularly discloses an alkaline manganese battery structure with an anode additionally provided with a base, which comprises an anode (2), a cathode and a base (1), the negative electrode is composed of zinc paste (3), a diaphragm (5) and a current collector (6), the zinc paste (3) is placed in the diaphragm (5), one end of the current collector (6) is inserted into the zinc paste (3), and the other end of the current collector (6) is fixed on the battery shell; the diaphragm (5) is placed in a groove in the middle of the base, and the positive electrode (2) is located outside the diaphragm (5) and surrounds the diaphragm (5) to form a circular ring. The polyethylene base is additionally arranged in the battery, so that the transportation and storage performance of a product is stabilized while the IEC discharge performance is met and the addition amount of positive and negative electrode materials is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of alkaline manganese batteries, and particularly relates to a structure of an alkaline manganese battery with a base added to the positive electrode. Background Art

[0002] For LR20 and LR14 alkaline manganese batteries, the biggest challenge for current manufacturing enterprises is the high price. Therefore, there is an urgent need to develop high-cost-performance batteries to enhance product competitiveness. Content of the Utility Model

[0003] To achieve the above technical purpose, the present invention adds a base made of polyethylene inside the LR20 / LR14 battery to stabilize the transportation and storage performance of the product while meeting the IEC discharge performance and reducing the addition amount of positive and negative electrode materials.

[0004] To achieve the above technical purpose, the present invention adopts the following technical solutions:

[0005] A structure of an alkaline manganese battery with a base added to the positive electrode, the battery structure including a positive electrode, a negative electrode, and a base; the negative electrode is composed of zinc paste, a separator, and a current collector; the zinc paste is placed inside the separator, one end of the current collector is inserted into the zinc paste, and the other end is fixed to the battery case; the separator is placed in the middle groove of the base, and the positive electrode is located outside the separator and forms a ring around the separator.

[0006] Further, the base includes an upper support ring and a lower support ring, the upper support ring and the lower support ring are connected together by connecting columns, and ventilation holes are provided between adjacent connecting columns; a horizontal support seat is provided at the middle position of the connecting column, and a circular hole is provided in the exact middle of the horizontal support seat.

[0007] Further, the height between the upper support ring and the lower support ring is 1.4 - 9.5 mm, and its diameter is 23 - 26 mm; the diameter of the horizontal support seat is 14 - 18 mm, and the diameter of the circular hole is 0 - 8 mm.

[0008] Further, there are 4 connecting columns, the connecting columns and the ventilation holes are evenly distributed to form a ring, and the ventilation holes form an air chamber in the battery.

[0009] Further, the material of the base is polyethylene.

[0010] Further, the diameter of the separator is the same as the diameter of the horizontal support seat; the diameters of the upper support ring and the lower support ring are the same as the inner diameter of the battery case.

[0011] Further, sealing structures are provided at both the upper and lower ends of the battery.

[0012] Advantages of the Utility Model:

[0013] By installing a polyethylene base at the positive end, the usage amounts of the positive and negative electrode materials are reduced, the battery cost is lowered, and the discharge performance can meet the requirements of the IEC standard. The air chamber inside the battery is reasonably reserved, and the performance is stable during transportation and storage. Description of the Drawings

[0014] Figure 1 Alkaline manganese battery structure with a base installed at the positive electrode.

[0015] Figure 2 Schematic diagram of the base structure.

[0016] Marking description: 1 - Base; 11 - Upper support ring; 12 - Lower support ring; 13 - Connecting column; 14 - Horizontal support seat; 15 - Circular hole; 16 - Ventilation hole; 2 - Positive electrode; 3 - Zinc paste; 4 - Air chamber; 5 - Diaphragm; 6 - Current collector Detailed implementation manners

[0017] To enable those skilled in the art to deepen their understanding of the present utility model, the following will be further described in conjunction with specific embodiments.

[0018] Embodiment

[0019] An alkaline manganese battery structure with a base installed at the positive electrode, the battery structure comprising a positive electrode 2, a negative electrode, and a base 1; the negative electrode is composed of zinc paste 3, a diaphragm 5, and a current collector 6, the zinc paste 3 is placed inside the diaphragm 5, one end of the current collector 6 is inserted into the zinc paste 3, and the other end is fixed to the battery case; the diaphragm 5 is placed in the middle groove of the base, the positive electrode 2 is located outside the diaphragm 5 and forms a ring around the diaphragm 5.

[0020] The base comprises an upper support ring 11 and a lower support ring 12, the upper support ring 11 and the lower support ring 12 are connected together by connecting columns 13, and ventilation holes 16 are provided between adjacent connecting columns 13; a horizontal support seat 14 is provided at the middle position of the connecting column 13, and a circular hole 15 is provided exactly in the middle of the horizontal support seat 14; the height between the upper support ring 11 and the lower support ring 12 is 1.4 - 9.5 mm, and its diameter is 23 - 26 mm; the diameter of the horizontal support seat 14 is 14 - 18 mm, the diameter of the circular hole 15 is 0 - 8 mm; there are 4 connecting columns 13, and the connecting columns 13 and the ventilation holes 16 are evenly distributed to form a ring, and the ventilation holes 16 form an air chamber 4 in the battery.

[0021] The material of the base 1 is polyethylene, the diameter of the diaphragm 5 is the same as the diameter of the horizontal support seat 14; the diameters of the upper support ring 11 and the lower support ring 12 are the same as the inner diameter of the battery case; sealing structures are provided at both upper and lower ends of the battery.

[0022] The alkaline manganese batteries with and without bases were prepared separately. The battery models are LR14 and LR20. Their performance is shown in Table 1. The battery performance did not decline after the improvement, but increased slightly.

[0023] Table 1: Discharge performance

[0024] Model Discharge resistor Discharge method Cut-off voltage: IEC standard After improvement LR14 3.9Ω 1h / d 0.8V 14 hours 18 hours LR20 2.2Ω 1h / d 0.8V 16 hours 20 hours

[0025] By installing a base made of polyethylene at the positive end, the current discharge performance can meet the requirements of IEC standards. The air chamber inside the battery is reasonably reserved, and the performance is stable during transportation and storage.

Claims

1. A positive electrode base-mounted alkaline manganese battery structure, characterized in that: The battery structure comprises a positive electrode (2), a negative electrode and a base (1); the negative electrode is composed of a zinc paste (3), a diaphragm (5) and a current collector (6); the zinc paste (3) is placed in the diaphragm (5); one end of the current collector (6) is inserted into the zinc paste (3) and the other end is fixed to the battery shell; the diaphragm (5) is placed in the middle groove of the base, and the positive electrode (2) is located outside the diaphragm (5) and forms a ring around the diaphragm (5).

2. The battery structure according to claim 1, characterized in that: The base (1) comprises an upper support ring (11) and a lower support ring (12); the upper support ring (11) and the lower support ring (12) are connected together via a connecting column (13); air vents (16) are provided between adjacent connecting columns (13); a horizontal support seat (14) is provided in the middle of the connecting column (13); a circular hole (15) is provided in the middle of the horizontal support seat (14).

3. The battery structure according to claim 2, characterized in that: The height between the upper support ring (11) and the lower support ring (12) is 1.4 to 9.5 mm, and the diameter thereof is 23 to 26 mm; the diameter of the horizontal support seat (14) is 14 to 18 mm, and the diameter of the circular hole (15) is 0 to 8 mm; there are four connecting columns (13), and the connecting columns (13) and the vent holes (16) are evenly distributed to form a ring shape, and the vent holes (16) form an air chamber (4) in the battery.

4. The battery structure according to claim 1, characterized in that: The base (1) is made of polyethylene.

5. The battery structure according to claim 3, characterized in that: The diameter of the diaphragm (5) is the same as that of the horizontal support seat (14); the diameter of the upper support ring (11) and the lower support ring (12) is the same as the inner diameter of the battery case.

6. The battery structure according to claim 1, characterized in that: The upper and lower ends of the battery are provided with sealing structures.

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