A support and economical alkaline zinc-manganese cylindrical battery

Abstract

The utility model discloses an economical alkaline zinc-manganese cylindrical battery and a support member. The outer contour of the support member is cylindrical, and a recessed groove is provided on the upper end surface. The support member is used to be embedded between a steel shell and a positive electrode ring, and the bottom wall of the recessed groove is used to support the bottom of a diaphragm tube, and the side wall of the recessed groove is used to laterally support the outer peripheral wall of the diaphragm tube. The internal structure is kept stable by embedding the support member, and the amount of battery active material can be adjusted in a targeted manner by controlling the height of the support member, thereby meeting the production needs of economical batteries.

Description

Technical Field

[0001] The utility model relates to the technical field of alkaline zinc-manganese batteries, in particular to an economical alkaline zinc-manganese cylindrical battery and a supporting piece. Background Art

[0002] Alkaline zinc-manganese batteries have become the leading products in the primary battery series due to their outstanding advantages such as large-capacity discharge characteristics, long storage period, high cost performance, and convenient purchase and carrying. The battery capacity of alkaline AA batteries currently on the market is generally designed to be around 3000mAh, which is much higher than the 900mAh of carbon AA batteries. With the development and application of new electronic consumer products, smart devices and Internet of Things technologies, the application field of alkaline zinc-manganese batteries will be further expanded.

[0003] New electronic consumer products generally have certain requirements for battery performance, including voltage, capacity and other aspects. Traditional carbon batteries can no longer meet the power consumption requirements of electrical appliances in many new application fields due to their small battery capacity and fast voltage drop. Traditional alkaline zinc-manganese batteries have large capacity but high prices, and may not match some electronic products due to their high voltage. In addition, in developing countries, especially in Africa and Asia, due to limited economic conditions, the market has shown a strong preference for batteries that can meet the needs of new electrical appliances and are relatively inexpensive.

[0004] The traditional alkaline zinc-manganese battery industry, due to the limitation of size standards, is difficult to maintain the stability of battery structure and performance while significantly reducing capacity. Therefore, it is particularly important to develop a low-cost and economical alkaline zinc-manganese battery to meet the growing demand for new electronic products in these developing countries and regions. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a safe, low-cost economical alkaline zinc-manganese cylindrical battery with stable performance without changing the external dimensions of the existing alkaline zinc-manganese battery.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: an economical alkaline zinc-manganese cylindrical battery, including a steel shell, a plurality of positive electrode rings, a support, a diaphragm cylinder, a negative electrode zinc paste, a negative electrode collector and an electrolyte;

[0007] The upper end of the steel shell is open, and the negative electrode collector seals the upper end of the steel shell;

[0008] The negative electrode zinc paste is filled in the diaphragm cylinder, and the electrolyte is located in the non-occupying space of the steel shell;

[0009] The support member is embedded in the lower end of the steel shell, and the positive electrode ring is stacked and supported on the support member;

[0010] The inner side of the positive electrode ring forms a cavity coaxial with the steel shell, and the diaphragm tube is located in the cavity;

[0011] The upper end surface of the support member is provided with a recessed groove, the lower section of the diaphragm tube is sunk into the recessed groove, the bottom wall of the recessed groove supports the bottom of the diaphragm tube, and the side walls of the recessed groove laterally support the outer peripheral wall of the diaphragm tube.

[0012] The preferred technical solution adopted by the utility model to solve the above technical problems is: the support member is made of any one or more materials selected from nylon material, stainless steel, titanium alloy, polytetrafluoroethylene, and polyetheretherketone.

[0013] The preferred technical solution adopted by the utility model to solve the above technical problems is: the support member includes an upper disc, a lower disc and a support column, so that the longitudinal section is in an I-shape, and the support member has a vertically symmetrical structure.

[0014] The preferred technical solution adopted by the utility model to solve the above technical problems is: the negative electrode collector includes a sealing ring, the lower surface of the sealing ring is provided with an annular ridge, the upper section of the diaphragm tube extends into the annular ridge, and the diaphragm tube is supported and limited by the support member and the sealing ring up and down to achieve anti-seismic effect.

[0015] The preferred technical solution adopted by the utility model to solve the above technical problem is: the support member includes an annular wall and a transverse wall located in the middle of the annular wall, so that the longitudinal section is H-shaped.

[0016] The preferred technical solution adopted by the utility model to solve the above technical problem is: a plurality of through holes are arranged in the center of the transverse wall.

[0017] The preferred technical solution adopted by the utility model to solve the above technical problems is: the relationship between the height H1 of the support member and the height H2 of the battery is: 0.05H2

[0018] The preferred technical solution adopted by the utility model to solve the above technical problems is: the support member is a nylon member with an alkali-resistant coating on the surface.

[0019] The preferred technical solution adopted by the utility model to solve the above technical problems is: the support member has a vertically symmetrical structure, an outwardly protruding boss is provided in the center of the transverse wall, an annular gap is formed between the boss and the annular wall, and the boss supports the bottom of the diaphragm cylinder.

[0020] The preferred technical solution adopted by the utility model to solve the above technical problem is: the diameter of the boss is smaller than half of the diameter of the diaphragm tube. ​

[0021] The preferred technical solution adopted by the utility model to solve the above technical problems is: the upper edge and the lower edge of the outer peripheral wall of the support member are both provided with chamfers, and the outer edge of the recessed groove is provided with a guiding flaring portion.

[0022] Compared with the prior art, the advantages of the utility model are:

[0023] First, after reducing the amount of active materials inside the battery, the diaphragm cylinder above the battery is in a large unsupported state. After the battery is stored for a long time, the diaphragm paper is easy to collapse, causing a short circuit between the negative and positive electrodes. By embedding the support, the stability of the internal structure is maintained, and by controlling the height of the support, the amount of active materials in the battery can be adjusted in a targeted manner, thereby meeting the production needs of economical batteries.

[0024] Second, in the assembly process, the diaphragm cylinder is usually too loosely matched with the positive ring during assembly, and a large gap is maintained to ensure that it can be smoothly inserted into the positive ring. Therefore, the support and positioning of the concave groove can ensure the coaxiality of the diaphragm cylinder and the battery, avoid the diaphragm cylinder from being skewed, and improve the quality of zinc paste injection.

[0025] Third, the bottom of the diaphragm tube is usually kneaded and ironed, but the material itself is thin and easy to rupture. In traditional batteries, zinc paste overflows after rupture, causing a short circuit between the positive and negative electrodes. In this embodiment, due to the wrapping of the concave groove, the possibility of zinc paste overflowing is reduced, reducing the risk of internal short circuit.

[0026] Fourth, in the preferred embodiment of the through hole, the upper and lower recessed grooves are connected, so that the injection amount of the electrolyte can be increased, and moisture can be provided to the positive and negative electrodes during the battery discharge reaction, thereby improving the utilization of the battery active materials and increasing the battery life.

[0027] Fifth, the bottom of the diaphragm tube is soaked in electrolyte for a long time, thus ensuring adhesion and not easy to break. And this part of the electrolyte also serves as a medium for electron conduction, which is beneficial to the long-term activity of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described object and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of an economical alkaline zinc-manganese cylindrical battery in the first embodiment of the utility model;

[0030] Figure 2 Schematic diagram of the support members in the first, seventh and eighth embodiments of the present invention Figure 1 ;

[0031] Figure 3 Schematic diagram of the support members in the first, seventh and eighth embodiments of the present invention Figure 2 ;

[0032] Figure 4 Schematic diagram of the support member in the second embodiment of the present utility model Figure 1 ;

[0033] Figure 5 Schematic diagram of the support member in the second embodiment of the present utility model Figure 2 ;

[0034] Figure 6 Schematic diagram of the support member in the third and fourth embodiments of the present utility model Figure 1 ;

[0035] Figure 7 Schematic diagram of the support member in the third and fourth embodiments of the present utility model Figure 2 ;

[0036] Figure 8 Schematic diagram of the support member in the fifth embodiment of the present utility model Figure 1 ;

[0037] Fig. 9 Schematic diagram of the support member in the fifth embodiment of the present utility model Figure 2 ;

[0038] Fig.10 Schematic diagram of the support member in the sixth embodiment of the present utility model Figure 1 ;

[0039] Fig.11 Schematic diagram of the support member in the sixth embodiment of the present utility model Figure 2 ;

[0040] Fig.12 This is an X-ray image of an economical alkaline zinc-manganese cylindrical battery in Example 1 of the utility model;

[0041] Fig.13 This is an X-ray image of an alkaline zinc-manganese cylindrical battery in Comparative Example 1 of the utility model;

[0042] Fig.14 This is an X-ray image of the alkaline zinc-manganese cylindrical battery in comparative example 2 of the utility model. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0044] Example

[0045] Embodiment 1:

[0046] like Figure 1 As shown, an economical alkaline zinc-manganese cylindrical battery includes a steel shell 1, three positive electrode rings 2, a support 3, a diaphragm cylinder 4, a negative electrode zinc paste, a negative electrode collector 5 and an electrolyte.

[0047] The upper end of the steel shell 1 is open, and the negative electrode collector 5 closes the upper end of the steel shell 1. The negative electrode zinc paste is filled in the diaphragm tube 4, and the positive electrode ring 2, the support member 3, the diaphragm tube 4, the negative electrode zinc paste, and the conductive nail 6 of the negative electrode collector 5 are located in the internal space enclosed by the steel shell 1 and the negative electrode collector 5. The positive electrode ring 2, the support member 3, the diaphragm tube 4, the negative electrode zinc paste, and the conductive nail 6 occupy part of the space to form a place-occupying space, while other areas form a non-place-occupying space, and the electrolyte is located in the non-place-occupying space of the steel shell 1.

[0048] In this embodiment, Figure 2-3 As shown, the support member 3 is made of nylon material by integral injection molding. The support member 3 includes an annular wall 31 and a transverse wall 32 located in the middle of the annular wall 31, so that the longitudinal section is H-shaped. The upper side of the transverse wall 32 forms a concave groove n located on the upper end surface of the support member 3.

[0049] Further preferably, the support member 3 is symmetrical in structure, and a protruding boss p is provided in the center of the transverse wall 32, and an annular gap is formed between the boss p and the annular wall 31. The diameter of the boss p is less than half of the diameter of the diaphragm cylinder 4.

[0050] Based on this support member 3, in this embodiment, when preparing the battery, the nylon support member 3 is first embedded in the steel shell 1, and then three positive electrode rings 2 are embedded in sequence, each positive electrode ring 2 has a height of 11.3 mm. Then, the diaphragm cylinder 4 is inserted in sequence, and the electrolyte and negative electrode zinc paste are injected into the diaphragm cylinder 4, and finally the LR6 battery is sealed.

[0051] In the formed battery, the support member 3 is embedded in the lower end of the steel shell 1, and the positive electrode ring 2 is stacked and supported on the support member 3; the inner side of the positive electrode ring 2 forms a cavity coaxial with the steel shell 1, and the diaphragm cylinder 4 is located in the cavity.

[0052] like Figure 1-3 As shown, the lower section of the diaphragm tube 4 is sunken into the concave groove n, the upper surface of the boss p serves as a part of the bottom wall of the concave groove n to support the bottom of the diaphragm tube 4, and the side wall of the concave groove n laterally supports the outer peripheral wall of the diaphragm tube 4. The part of the bottom of the tube extends to the annular gap between the boss p and the annular wall 31.

[0053] This structural setting has the following advantages:

[0054] First, after reducing the amount of active material inside the battery, the diaphragm tube 4 above the battery is in a large unsupported state. After the battery is stored for a long time, the diaphragm paper is easy to collapse, causing a short circuit between the negative electrode and the positive electrode. By embedding the support member 3, the stability of the internal structure is maintained, and by controlling the height of the support member 3, the amount of active material in the battery can be adjusted in a targeted manner, thereby meeting the production needs of economical batteries.

[0055] Second, in the assembly process, the diaphragm cylinder 4 is generally loosely matched with the positive electrode ring 2 during assembly, and a large gap is maintained to ensure that it can be smoothly inserted into the positive electrode ring 2. Therefore, the support and positioning of the concave groove n can ensure the coaxiality of the diaphragm cylinder 4 and the battery, avoid the deflection of the diaphragm cylinder 4, and improve the quality of zinc paste injection.

[0056] Third, the bottom of the diaphragm tube 4 is generally kneaded and ironed, but the material itself is thin and easy to rupture. In traditional batteries, zinc paste overflows after rupture, causing a short circuit between the positive and negative electrodes. In this embodiment, due to the wrapping of the concave groove n, the possibility of zinc paste overflowing is reduced, and the risk of internal short circuit is reduced.

[0057] Fourth, the presence of the concave groove n accumulates electrolyte and the bottom of the diaphragm tube 4 partially extends to the annular gap between the boss p and the annular wall 31, so that the bottom of the tube is immersed in the electrolyte for a long time, thereby ensuring adhesion and not prone to cracking. In addition, this part of the electrolyte also serves as a medium for electron conduction, which is beneficial to the long-term activity of the battery.

[0058] Fifth, in this embodiment, the support member 3 structure does not distinguish between the front and back sides, which is convenient for continuous and stable production in the workshop. Of course, it should be understood that the upper and lower symmetry of the support member 3 in this embodiment is only a preference, and the transverse wall 32 can also be located in a non-middle position.

[0059] like Figure 2-3 As shown, further preferably, a plurality of through holes are provided on the transverse wall 32 of the support member 3, and the through holes can also be located at the position of the boss p. The purpose is to maintain the communication between the upper and lower recessed grooves n, so as to increase the injection amount of the electrolyte. During the discharge reaction of the battery, moisture is provided to the positive and negative electrodes, the utilization of the active materials of the battery is improved, and the service life of the battery is increased.

[0060] Further preferably, the negative electrode collector 5 includes a sealing ring 7, the lower surface of the sealing ring 7 is provided with an annular ridge m, the upper section of the diaphragm tube 4 extends into the annular ridge m, and the diaphragm tube 4 is supported and limited by the support member 3 and the sealing ring 7 up and down to achieve anti-vibration effect, further ensure the stability of the diaphragm tube 4, and avoid overflow of the negative electrode zinc paste.

[0061] Preferably, the upper and lower edges of the outer peripheral wall of the support member 3 are chamfered, which facilitates the assembly of the support member 3 and avoids edge damage. The outer edge of the recessed groove n is provided with a guide expansion portion t to facilitate the insertion of the diaphragm tube 4.

[0062] In this embodiment, the prepared battery is an LR6 battery, the φ1 size of the support 3 is 9.0 mm, the φ2 size is 13.5 mm, the H1 height is 8.0 mm, the H3 height is 1.5 mm, and the H4 height is 3.5 mm. The number of winding layers of the diaphragm tube 4 is 2 layers, and the diaphragm tube 4 height is 40.0 mm. The relationship between the height H1 of the support 3 and the height H2 of the battery is: 0.05H2

[0063] Embodiment 2:

[0064] like Figure 4 , 5 As shown, this embodiment adjusts the structure of the support member 3 on the basis of the first embodiment.

[0065] In this embodiment, an economical alkaline zinc-manganese cylindrical battery includes a steel shell, three positive electrode rings, a support member 3, a diaphragm cylinder, a negative electrode zinc paste, a negative electrode collector and an electrolyte.

[0066] The upper end of the steel shell is open, and the negative electrode collector closes the upper end of the steel shell. The negative electrode zinc paste is filled in the diaphragm tube, and the positive electrode ring, support member 3, diaphragm tube, negative electrode zinc paste and conductive nails of the negative electrode collector are located in the internal space enclosed by the steel shell and the negative electrode collector. The positive electrode ring, support member 3, diaphragm tube, negative electrode zinc paste and conductive nails occupy part of the space to form a placeholder, while other areas form a non-placeholder space, and the electrolyte is located in the non-placeholder space of the steel shell.

[0067] like Figure 4 , 5 As shown, in this embodiment, the support member 3 is made of nylon material by integral injection molding. The support member 3 includes an annular wall 31 and a transverse wall 32 located in the middle of the annular wall 31, so that the longitudinal section is H-shaped. The upper side of the transverse wall 32 forms a concave groove n located on the upper end surface of the support member 3.

[0068] Further preferably, a through hole y is provided in the center of the transverse wall 32, and the diameter of the through hole y is less than one third of the diameter of the diaphragm cylinder.

[0069] Based on this support member 3, in this embodiment, when preparing the battery, the nylon support member 3 is first embedded in the steel shell, and then three positive electrode rings are embedded in sequence, each positive electrode ring is 11.3 mm high. Then, the diaphragm cylinder is inserted in sequence, and the electrolyte and negative electrode zinc paste are injected into the diaphragm cylinder, and finally the LR6 battery is sealed.

[0070] ​In the formed battery, the support member 3 is embedded in the lower end of the steel shell, and the positive electrode ring is stacked and supported on the support member 3; the inner side of the positive electrode ring forms a cavity coaxial with the steel shell, and the diaphragm tube is located in the cavity.

[0071] The lower section of the diaphragm tube is sunken into the concave groove n, the bottom wall of the concave groove n supports the bottom of the diaphragm tube, and the side walls of the concave groove n laterally support the outer peripheral wall of the diaphragm tube. The middle of the bottom of the tube is located at the through hole.

[0072] This structural setting has the following advantages:

[0073] First, after reducing the amount of active material inside the battery, the diaphragm cylinder above the battery is in a large unsupported state. After the battery is stored for a long time, the diaphragm paper is easy to collapse, causing a short circuit between the negative electrode and the positive electrode. By embedding the support member 3, the stability of the internal structure is maintained, and by controlling the height of the support member 3, the amount of active material in the battery can be adjusted in a targeted manner, thereby meeting the production needs of economical batteries.

[0074] Second, in the assembly process, the diaphragm cylinder is generally too loosely matched with the positive electrode ring during assembly, and a large gap is maintained to ensure that it can be smoothly inserted into the positive electrode ring. Therefore, the support and positioning of the concave groove n can ensure the coaxiality of the diaphragm cylinder and the battery, avoid the diaphragm cylinder from being skewed, and improve the quality of zinc paste injection.

[0075] Third, the bottom of the diaphragm tube is usually kneaded and ironed, but it is thin and easy to rupture. In traditional batteries, zinc paste overflows after rupture, causing a short circuit between the positive and negative electrodes. In this embodiment, due to the wrapping of the concave groove n, the possibility of zinc paste overflowing is reduced, reducing the risk of internal short circuit.

[0076] Fourth, the existence of the through hole makes the upper and lower concave grooves n connected, so as to increase the injection amount of the electrolyte, provide moisture to the positive and negative electrodes during the battery discharge reaction, improve the utilization of the battery active materials, and increase the battery life. At the same time, the bottom of the diaphragm tube is soaked in the electrolyte for a long time, so as to ensure adhesion and not easy to break. And this part of the electrolyte also serves as a medium for electron conduction, which is conducive to the long-term activity of the battery.

[0077] Further preferably, the negative electrode collector includes a sealing ring, the lower surface of the sealing ring is provided with an annular ridge, the upper section of the diaphragm tube extends into the annular ridge, and the diaphragm tube is supported and limited by the support member 3 and the sealing ring up and down to achieve anti-vibration effect, further ensure the stability of the diaphragm tube, and avoid overflow of the negative electrode zinc paste.

[0078] Preferably, the upper and lower edges of the outer peripheral wall of the support member 3 are chamfered, thereby facilitating the assembly of the support member 3 and avoiding edge damage. The outer edge of the recessed groove n is provided with a guiding expansion portion t to facilitate the insertion of the diaphragm tube.

[0079] In this embodiment, if Figure 4 , 5 As shown, the prepared battery is an LR6 battery, the φ3 size of the support 3 is 9.0 mm, the φ4 size is 13.5 mm, the φ5 size is 1.5 mm, the H1 height is 8.0 mm, the number of diaphragm tube winding layers is 2, and the diaphragm tube height is 40.0 mm.

[0080] Embodiment three:

[0081] like Figure 6 , 7 As shown, this embodiment is based on the second embodiment, and the structure of the support member 3 is slightly modified. In this embodiment, the support member 3 is made of nylon material by integral injection molding. The support member 3 includes an annular wall 31 and a transverse wall 32 located in the middle of the annular wall 31, so that the longitudinal section is H-shaped. The upper side of the transverse wall 32 forms a recessed groove n located on the upper end surface of the support member 3. Another recess is formed on the lower side of the transverse wall 32. Compared with the second embodiment, it omits the through hole located in the center of the transverse wall 32, and the number of winding layers of the diaphragm cylinder is 3. Other structural processes are the same as those of the second embodiment, and are not repeated here.

[0082] Embodiment 4:

[0083] This embodiment is based on the third embodiment, and the number of layers of the membrane cylinder winding is 2. Other structural processes are the same as those of the second embodiment, and will not be repeated here.

[0084] Embodiment five:

[0085] like Figure 8 , 9 As shown, this embodiment adjusts the structure of the support member 3 on the basis of the first embodiment.

[0086] In this embodiment, the support member 3 is made of nylon material by integral injection molding. The support member 3 is a cylindrical solid member. A shallow recessed groove n is provided on the upper end surface of the support member 3. A guiding expansion portion t is provided on the outer edge of the recessed groove n to facilitate the insertion of the diaphragm tube.

[0087] Preferably, both the upper edge and the lower edge of the outer peripheral wall of the support member 3 are chamfered, thereby facilitating the assembly of the support member 3 and avoiding edge damage.

[0088] Further preferably, the support member 3 has a vertically symmetrical structure, with no distinction between the front and back sides, to facilitate continuous and stable production in the workshop.

[0089] As shown in the figure, in this embodiment, the size of φ6 is 9.0mm, the size of φ7 is 13.5mm, and the height of H1 is 8.0mm. The above-mentioned support member 3 is first embedded in the steel shell to assemble into an LR6 battery. The number of layers of the diaphragm cylinder is 2, and the height of the diaphragm cylinder is 40.0mm. The structure, materials, and process steps of the battery are the same as those in Example 1.

[0090] Embodiment six:

[0091] like Fig.10 , 11 As shown, this embodiment adjusts the structure of the support member 3 on the basis of the first embodiment.

[0092] In this embodiment, the support member 3 is made of nylon material by integral injection molding. The support member 3 includes an upper disc 3a, a lower disc 3b and a support column 3c, so that the longitudinal section is in an I-shape, and the support member 3 is in a vertically symmetrical structure.

[0093] The upper end surface of the upper disc 3a is provided with a shallow recessed groove n. The outer edge of the recessed groove n is provided with a guide expansion portion t to facilitate the insertion of the diaphragm tube.

[0094] like Fig.10 , 11 As shown, in this embodiment, the size of φ8 is 9.0mm, the size of φ9 is 13.5mm, the size of φ10 is 6.0mm, the height of H1 is 8.0mm, and the height of H5 is 5.0mm. The above-mentioned support member 3 is first embedded in the steel shell to assemble into an LR6 battery. The number of winding layers of the diaphragm cylinder is 2 layers, and the height of the diaphragm cylinder is 40.0mm. The structure, materials, and process steps of the battery are the same as those in Example 1.

[0095] Embodiment seven:

[0096] The support member 3 structure of Example 1 is used, with a φ1 size of 9.0mm, a φ2 size of 13.5mm, a H1 height of 6.0mm, a H3 height of 1.5mm, and a H4 height of 2.5mm. The support member 3 is first embedded in the steel shell, and then three positive electrode rings are embedded in sequence, each with a height of 12.0mm. After that, the diaphragm cylinder is inserted in sequence, and saturated wetting electrolyte and negative electrode zinc paste are injected into the diaphragm cylinder, and finally sealed to form an LR6 battery. The diaphragm cylinder uses diaphragm paper for normal production, with 3 winding layers and a diaphragm cylinder height of 42.0mm.

[0097] Embodiment eight:

[0098] The support member 3 structure of Example 1 is used, with a φ1 size of 9.0mm, a φ2 size of 13.5mm, a H1 height of 4.0mm, a H3 height of 1.5mm, and a H4 height of 1.5mm. The support member 3 is first embedded in the steel shell, and then three positive electrode rings are embedded in sequence, each with a height of 12.7mm. After that, the diaphragm cylinder is inserted in sequence, and saturated wetting electrolyte and negative electrode zinc paste are injected into the diaphragm cylinder, and finally sealed to form an LR6 battery. The diaphragm cylinder uses diaphragm paper for normal production, with 3 winding layers and a diaphragm cylinder height of 44.0mm.

[0099] Experimental results:

[0100] Comparative Example 1:

[0101] The support member 3 is not embedded in the bottom of the steel shell, and the positive electrode ring is directly embedded in the bottom of the steel shell. The height of each positive electrode ring is 11.3mm. Then the diaphragm cylinder is inserted in turn, and the saturated wetting electrolyte and negative electrode zinc paste are injected into the diaphragm cylinder, and finally the diaphragm cylinder is sealed to form an LR6 battery. The diaphragm cylinder material is the same as that of Example 1, the number of winding layers is 2, and the diaphragm cylinder height is 48.0mm. The battery X-ray image is as follows Figure 2 shown.

[0102] Comparative Example 2:

[0103] The LR6 battery is prepared by normal process. The support member 3 is not embedded in the bottom of the steel shell. The positive electrode ring is directly embedded in the bottom of the steel shell. The height of each positive electrode ring is 14.0 mm. Then the diaphragm cylinder is inserted in turn, and the saturated wetting electrolyte and negative electrode zinc paste are injected into the diaphragm cylinder. Finally, the LR6 battery is sealed. The diaphragm cylinder is the same as that of comparative example 1. The battery X-ray image is as follows Figure 1 The amount of positive and negative electrode materials used in Comparative Example 1 is reduced by 20% compared with Comparative Example 2.

[0104] X-ray comparison of Example 1, Comparative Example 1 and Comparative Example 2:

[0105] like Figure 12-13 The X-ray images of the battery of Example 1 and Comparative Example 1 and Comparative Example 2 are shown respectively. After the height of the positive electrode ring of Comparative Example 1 is reduced, the upper end of the diaphragm tube is severely deformed. This problem does not exist in Example 1.

[0106] Performance comparison between Example 3 and Comparative Example 1 and Comparative Example 2:

[0107] Battery drop test method: After the battery is prepared, it is placed in an environment of 20±2℃ for three days. Then 48 batteries are taken from each sample. After the battery open voltage is tested, the battery is freely dropped from a height of 1 meter to the concrete floor. After repeating the drop 30 times, the battery is left to stand for 24 hours before being tested again. The number of batteries with abnormal open voltage is recorded.

[0108] Battery capacity test method: After the battery is prepared, it is placed in an environment of 20±2℃ for three days. Nine batteries are taken from each sample for capacity test. The test discharge mode and cut-off voltage are as follows: 10mA, 24h / d, cut-off voltage 0.8V, and the battery capacity is recorded.

[0109] Table 1: Number of abnormal voltage cells and battery capacity after battery drop test

[0110] project Abnormal opening pressure number (section) Battery capacity (mAh) Embodiment 3 0 2202 Comparative Example 1 6 2186 Comparative Example 2 0 3015

[0111] From the battery capacity test results, after the amount of positive and negative electrode materials in the battery is reduced, the corresponding battery capacity also decreases year-on-year. The battery drop test results show that after the amount of positive and negative electrode materials in the battery is greatly reduced, the comparative example 1 without the embedded support 3 is more likely to have an internal short circuit and abnormal opening voltage after the battery drop test.

[0112] Comparison of the absorption amount and electrical properties of the wetting electrolyte in Examples 1 to 2, 4 to 6:

[0113] The electrical performance test method is as follows: After the battery is prepared, it is placed in an environment of 20±2℃ for three days before the electrical performance test. The electrical performance test indicators and cut-off potential are as follows: 50mA discharge for 1h / 8h, 24h / d, cut-off potential 1.0V; 250mA discharge for 1h / d, cut-off potential 0.9V; 1500mW pulse. (1500mW2s, 650mW28s) 10T / 1h, 24h / d, cut-off potential 1.05V. Each discharge method tests 9 batteries, and the average test results are shown in Table 2.

[0114] Table 2: Wetting electrolyte intake and electrical performance data

[0115]

[0116] From the relationship between the amount of wetting electrolyte added to the battery and the battery performance, the electrical performance increases with the amount of wetting electrolyte. Considering the impact of the structure of the support member 3 in the battery on the convenience of production operations, the structural comprehensive performance of the support member 3 in the first embodiment is the best.

[0117] Comparison of electrical performance tests of embodiments 1, 7 and 8:

[0118] After the battery is prepared, it is placed in an environment of 20±2℃ for three days before the electrical performance test. The electrical performance test indicators and cut-off potential are as follows: 50mA for 1h / 8h, 24h / d, cut-off potential 1.0V; 250mA for 1h / d, cut-off potential 0.9V; 1500mW pulse. (1500mW2s, 650mW28s) 10T / 1h, 24h / d, cut-off potential 1.05V. Capacity test: 10mA, 24h / d, cut-off voltage 0.8V. 9 batteries are tested for each discharge method, and the average test results are shown in Table 3.

[0119] Table 3: Electrical performance data of Examples 1, 7 and 8

[0120]

[0121] In embodiments 1, 7 to 8, the height of the support member 3 is 8.0 mm, 6.0 mm, and 4.0 mm, respectively. By adjusting the height of the support member 3 and the amount of positive and negative electrode materials used, the battery capacity required by the user can be designed specifically, which can not only meet the user's electrical performance requirements but also control the battery cost.

[0122] The above is a detailed introduction to an economical alkaline zinc-manganese cylindrical battery and a support member 3 provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas.

[0123] Under this concept, the material of the support member 3 is not restricted too much, and can be made of any one or more materials selected from nylon, stainless steel, titanium alloy, polytetrafluoroethylene, and polyetheretherketone. In a preferred embodiment, the support member 3 can be a nylon member coated with an alkali-resistant coating.

[0124] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims

1. A support for an economical alkaline zinc-manganese cylindrical battery, characterized in that The outer contour of the support member is cylindrical, and a recessed groove is provided on the upper end surface of the support member; the support member is used to be embedded between the steel shell and the positive electrode ring, the bottom wall of the recessed groove is used to support the bottom of the diaphragm cylinder, and the side walls of the recessed groove are used to laterally support the outer peripheral wall of the diaphragm cylinder.

2. The support member according to claim 1, characterized in that The support member has a vertically symmetrical structure.

3. The support member according to claim 1, characterized in that The support member comprises an upper disc, a lower disc and a support column, so that the longitudinal section is in an I-shape.

4. The support member according to claim 1, characterized in that The support member comprises an annular wall and a transverse wall located in the middle of the annular wall, the concave groove is formed on the upper and lower sides of the transverse wall, and the longitudinal section of the support member is H-shaped.

5. The support member according to claim 4, characterized in that A plurality of through holes are arranged in the center of the transverse wall.

6. The support member according to claim 4, characterized in that The support member has a vertically symmetrical structure. An outwardly protruding boss is provided in the center of the transverse wall. An annular gap is formed between the boss and the annular wall. The boss supports the bottom of the diaphragm cylinder.

7. The support member according to claim 6, characterized in that The diameter of the boss is smaller than half of the diameter of the diaphragm tube.

8. An economical alkaline zinc-manganese cylindrical battery, characterized in that: It comprises a steel shell, a plurality of positive electrode rings, a support member as claimed in any one of claims 1 to 7, a diaphragm cylinder, a negative electrode zinc paste, a negative electrode collector and an electrolyte; The upper end of the steel shell is open, and the negative electrode collector seals the upper end of the steel shell; The negative electrode zinc paste is filled in the diaphragm cylinder, and the electrolyte is located in the non-occupying space of the steel shell; The support member is embedded in the lower end of the steel shell, and the positive electrode ring is stacked and supported on the support member; The inner side of the positive electrode ring forms a cavity coaxial with the steel shell, and the diaphragm tube is located in the cavity; The lower section of the diaphragm tube is sunken into the recessed groove, the bottom wall of the recessed groove supports the bottom of the diaphragm tube, and the side walls of the recessed groove laterally support the outer peripheral wall of the diaphragm tube.

9. An economical alkaline zinc-manganese cylindrical battery according to claim 8, characterized in that: The negative electrode collector includes a sealing ring, the lower surface of which is provided with an annular ridge, the upper section of the diaphragm tube extends into the annular ridge, and the diaphragm tube is supported and limited by the support member and the sealing ring up and down to achieve anti-vibration effect.

10. An economical alkaline zinc-manganese cylindrical battery according to claim 8, characterized in that: The relationship between the height H1 of the support and the height H2 of the battery is: 0.05H2 <H1<0.35H2。

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