Corrosion-resistant battery positive grid

Abstract

The utility model provides a corrosion-resistant battery positive grid, which relates to the field of battery positive grids, and comprises a battery positive grid frame body and transverse ribs, the transverse ribs are fixed on the inner frame surface of the battery positive grid frame body at equal intervals, and the outer surfaces of the transverse ribs are wrapped with ceramic outer layers. A first longitudinal rib and a second longitudinal rib are attached to the upper surface and the lower surface of the transverse rib respectively, the front side and the rear side of the first longitudinal rib and the front side and the rear side of the second longitudinal rib are welded and fixed to the inner frame face of the battery positive grid frame, and the outer surface of the first longitudinal rib and the outer surface of the second longitudinal rib are coated with graphene outer films. The utility model solves the problem that the upper part ribs are easy to deform, corrode and break due to poor strength caused by the fact that the distance between the upper part ribs of the positive grid of the battery is far greater than that between the lower part ribs of the positive grid of the battery in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of battery positive grids, in particular to a corrosion-resistant battery positive grid. Background Art

[0002] The grid is the main component of a lead-acid battery and the collector skeleton of the electrode. It conducts, collects and distributes current evenly. It also supports the active material and is a carrier of the active material. The positive grid of the battery is a structure provided on the positive plate of the lead-acid battery to increase the electrode reaction area. It can increase the charging current of the battery and reduce the internal resistance, thereby improving battery performance and extending battery life. After searching, the prior art (application number: CN201922064369.X) records that "the cross-sectional area of ​​the ribs in the upper part is much larger than the cross-sectional area of ​​the ribs in the lower part, the cross-section of the upper frame and the vertical ribs are both designed with a gradient, and the spacing between the ribs in the upper part is much larger than the spacing between the ribs in the lower part. On the one hand, the cost is reduced, and on the other hand, it has better corrosion resistance while ensuring that the cost is comparable to that of existing products. At the same time, it improves the utilization rate of the lower lead paste and extends the battery life". However, in the prior art, the spacing between the ribs in the upper part of the battery positive grid is much larger than the spacing between the ribs in the lower part, resulting in poor strength of the ribs in the upper part, which is easily deformed, corroded and broken. Utility Model Content

[0003] In order to overcome the defects of the prior art, a corrosion-resistant battery positive grid is provided to solve the problem that the spacing between the upper ribs of the battery positive grid in the prior art is much larger than the spacing between the lower ribs, resulting in poor strength of the upper ribs, which are easily deformed, corroded and broken.

[0004] In order to achieve the above object, a corrosion-resistant battery positive grid is provided, comprising: a battery positive grid frame and transverse ribs, wherein the inner frame surface of the battery positive grid frame is equidistantly fixed with transverse ribs,

[0005] The outer surface of the transverse rib is wrapped with a ceramic outer layer, and the upper and lower surfaces of the transverse rib are respectively bonded with the first longitudinal rib and the second longitudinal rib, the front and rear sides of the first longitudinal rib and the second longitudinal rib are welded and fixed to the inner frame surface of the battery positive grid frame, and the outer surfaces of the first longitudinal rib and the second longitudinal rib are coated with a graphene outer film.

[0006] Furthermore, a positive pole ear is provided at the right end of the battery positive grid frame, and heat sinks are inlaid and welded on the front and rear side frame walls of the battery positive grid frame.

[0007] Furthermore, the side ends of the heat sink are extended with extension strips, and the extension strips are respectively in contact with the upper surface of the first longitudinal rib and the lower surface of the second longitudinal rib.

[0008] Furthermore, the transverse ribs are composed of an alloy inner transverse bar and a ceramic outer layer; and the outer surface of the alloy inner transverse bar is wrapped with a ceramic outer layer made of silicon carbide ceramic material.

[0009] Furthermore, the first longitudinal ribs and the second longitudinal ribs contain alloy inner longitudinal bars.

[0010] Furthermore, a graphene outer film is attached to the outer surface of the inner longitudinal strip of the alloy.

[0011] Furthermore, the first longitudinal ribs and the second longitudinal ribs are staggeredly distributed on the upper and lower surfaces of the transverse ribs with the center line of the transverse ribs in a staggered manner.

[0012] The beneficial effect of the utility model is that the corrosion-resistant battery positive grid of the utility model utilizes the first longitudinal ribs and the second longitudinal ribs to be staggeredly distributed on the surface of the transverse ribs, so as to strengthen the rib strength of the battery positive grid and avoid deformation and fracture of the battery positive grid. At the same time, the graphene outer film on the outer surface of the longitudinal ribs and the ceramic outer layer of the transverse ribs form a corrosion-resistant outer layer, which further reduces the degree of corrosion of the battery positive grid, prolongs the service life of the battery positive grid, and improves the corrosion resistance of the battery positive grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the top view of the positive grid of a battery according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the front cross-sectional structure of the battery positive grid according to an embodiment of the utility model.

[0015] Figure 3 For the utility model embodiment Figure 2 Schematic diagram of the enlarged structure at point A.

[0016] Figure 4 It is a bottom view structural schematic diagram of a battery positive grid according to an embodiment of the utility model.

[0017] In the figure: 1. battery positive grid frame; 11. positive ear; 2. horizontal ribs; 21. alloy inner horizontal bars; 22. ceramic outer layer; 3. heat sink; 31. extension bar; 4. first longitudinal ribs; 41. second longitudinal ribs; 42. alloy inner longitudinal bars; 43. graphene outer film. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides a corrosion-resistant battery positive grid, comprising: a battery positive grid frame 1 and transverse ribs 2, wherein the inner frame surface of the battery positive grid frame 1 is equidistantly fixed with transverse ribs 2.

[0019] The outer surface of the transverse rib 2 is wrapped with a ceramic outer layer 22, and the upper and lower surfaces of the transverse rib 2 are respectively adhered with the first longitudinal rib 4 and the second longitudinal rib 41, and the front and rear sides of the first longitudinal rib 4 and the second longitudinal rib 41 are welded and fixed to the inner frame surface of the battery positive grid frame 1, and the outer surfaces of the first longitudinal rib 4 and the second longitudinal rib 41 are coated with a graphene outer film 43.

[0020] Working principle: The battery positive grid is staggeredly distributed on the surface of the transverse rib 2 through the first longitudinal rib 4 and the second longitudinal rib 41, so as to strengthen the rib strength of the battery positive grid and avoid deformation and fracture of the battery positive grid. At the same time, the graphene outer film 43 on the outer surface of the first longitudinal rib 4 and the second longitudinal rib 41 and the ceramic outer layer 22 of the transverse rib 2 form a corrosion-resistant outer layer, which further reduces the degree of corrosion of the battery positive grid, prolongs the service life of the battery positive grid, and improves the corrosion resistance of the battery positive grid.

[0021] In this embodiment, a positive electrode ear 11 is provided at the right end of the battery positive grid frame 1, and heat sinks 3 are inlaid and welded on the front and rear side frame walls of the battery positive grid frame 1.

[0022] As a preferred implementation, the heat sink 3 facilitates accelerating the heat dissipation conduction and avoids heat accumulation causing local high temperature damage to the positive grid of the battery.

[0023] In this embodiment, an extension strip 31 is extended from the side end of the heat sink 3 , and the extension strip 31 is respectively in contact with the upper surface of the first longitudinal rib 4 and the lower surface of the second longitudinal rib 41 .

[0024] As a preferred embodiment, the heat sink 3 conducts the heat of the first longitudinal ribs 4 and the second longitudinal ribs 41 respectively through the extension strips 31 to accelerate the heat dissipation effect.

[0025] In this embodiment, the transverse rib 2 is composed of an alloy inner transverse bar 21 and a ceramic outer layer 22 ; and the outer surface of the alloy inner transverse bar 21 is wrapped with a ceramic outer layer 22 made of silicon carbide ceramic material.

[0026] As a preferred embodiment, the ceramic outer layer 22 made of silicon carbide ceramic material further enhances the corrosion resistance and overall strength of the transverse ribs 2 , thereby facilitating stable support of the first longitudinal ribs 4 and the second longitudinal ribs 41 .

[0027] In this embodiment, the first longitudinal ribs 4 and the second longitudinal ribs 41 both contain alloy inner longitudinal bars 42 .

[0028] As a preferred embodiment, the alloy inner longitudinal strip 42 is made of lead-calcium alloy and has good corrosion resistance.

[0029] In this embodiment, a graphene outer film 43 is attached to the outer surface of the alloy inner longitudinal strip 42 .

[0030] As a preferred embodiment, the graphene outer film 43 can effectively improve the corrosion resistance of the first longitudinal ribs 4 and the second longitudinal ribs 41 and reduce the corrosion degree of the longitudinal ribs.

[0031] In this embodiment, the first longitudinal ribs 4 and the second longitudinal ribs 41 are staggeredly distributed on the upper and lower surfaces of the transverse ribs 2 along the center line of the transverse ribs 2 .

[0032] As a preferred embodiment, the staggered distribution of the first longitudinal ribs 4 and the second longitudinal ribs 41 reduces the stress concentration of the ribs, thereby increasing the rib strength of the battery positive grid and avoiding deformation and fracture of the battery positive grid.

[0033] The corrosion-resistant battery positive grid of the utility model can effectively solve the problem in the prior art that the spacing between the ribs of the upper part of the battery positive grid is much larger than the spacing between the ribs of the lower part, resulting in poor strength of the ribs of the upper part, which is easily deformed, corroded and broken. It is convenient to strengthen the rib strength of the battery positive grid, avoid deformation and breakage of the battery positive grid, further slow down the degree of corrosion of the battery positive grid, extend the service life of the battery positive grid, and improve the corrosion resistance of the battery positive grid. It is suitable for corrosion-resistant battery positive grids.

Claims

1. A corrosion-resistant battery positive grid, comprising: A battery positive grid frame (1) and transverse ribs (2), wherein the inner frame surface of the battery positive grid frame (1) is fixed with transverse ribs (2) at equal intervals, and is characterized in that: The outer surface of the transverse rib (2) is wrapped with a ceramic outer layer (22); the upper and lower surfaces of the transverse rib (2) are respectively bonded with a first longitudinal rib (4) and a second longitudinal rib (41); the front and rear sides of the first longitudinal rib (4) and the second longitudinal rib (41) are welded and fixed to the inner frame surface of the battery positive grid frame (1); and the outer surfaces of the first longitudinal rib (4) and the second longitudinal rib (41) are coated with a graphene outer film (43).

2. The corrosion-resistant battery positive grid according to claim 1, characterized in that: A positive pole ear (11) is provided at the right end of the battery positive grid frame (1), and heat sinks (3) are inlaid and welded on the front and rear side frame walls of the battery positive grid frame (1).

3. The corrosion-resistant battery positive grid according to claim 2, characterized in that: An extension strip (31) is extended at the side end of the heat sink (3); and the extension strip (31) is respectively in contact with the upper surface of the first longitudinal rib (4) and the lower surface of the second longitudinal rib (41).

4. The corrosion-resistant battery positive grid according to claim 1, characterized in that: The transverse ribs (2) are composed of an alloy inner transverse bar (21) and a ceramic outer layer (22); and the outer surface of the alloy inner transverse bar (21) is coated with a ceramic outer layer (22) made of silicon carbide ceramic material.

5. The corrosion-resistant battery positive grid according to claim 1, characterized in that: The first longitudinal rib (4) and the second longitudinal rib (41) both contain alloy inner longitudinal bars (42) therein.

6. The corrosion-resistant battery positive grid according to claim 5, characterized in that: A graphene outer film (43) is attached to the outer surface of the alloy inner longitudinal strip (42).

7. The corrosion-resistant battery positive grid according to claim 1, characterized in that: The first longitudinal ribs (4) and the second longitudinal ribs (41) are staggeredly distributed on the upper and lower surfaces of the transverse ribs (2) along the center line of the transverse ribs (2).

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