CN213752883U

CN213752883U - Novel plastic shell lithium battery

Info

Publication number: CN213752883U
Application number: CN202022485024.4U
Authority: CN
Inventors: 陈向阳; 陈儹
Original assignee: Shenzhen Meigongyuan Plastic Mould Co ltd
Current assignee: Shenzhen Meigongyuan Plastic Mould Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-20
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a novel plastic shell lithium cell, which comprises a battery body, battery body comprises output module and power module, power module is including electrolyte tank box, electrolyte tank box one end sets up the notch, output module is including the end cap, the end cap agrees with mutually with electrolyte tank box's notch, just end cap and electrolyte tank box are plastic material integrated into one piece hot briquetting. The utility model discloses a battery body utilizes the plastic material to replace the multiple material layer of current outside encapsulation, makes the appearance of lithium cell unanimous, and available intelligent shaping is processed, simultaneously greatly reduced manufacturing cost, simplify original manufacturing procedure, can also avoid violent explosion phenomenon to take place simultaneously, improves user's security, not only solves the problem at the inconvenient installation of narrow and small space, still can make the installation more stable, reduces the damaged phenomenon of contact extrusion with other components, has improved life.

Description

Novel plastic shell lithium battery

Technical Field

The utility model relates to a technical field of microbattery specifically is a novel plastic shell lithium cell.

Background

The micro battery is a battery which has small volume, high specific energy, stable working voltage, good sealing performance, small self-discharge and high reliability and is developed along with the miniaturization of electronic elements, particularly the appearance of transistors and integrated circuits. The micro battery is generally composed of a positive electrode, a negative electrode, an electrolyte solution, a diaphragm and parts which are all packed closely.

The existing packaging structure for microbatteries comprises various material layers, such as insulating materials, conductive materials, diaphragm materials, etc., wherein most of the current packaging structures adopt tin foil paper materials and stainless steel shell materials for external packaging, and the structure has the following disadvantages:

1. the proportion of waste in used materials is high due to the influence of the structure of the finished product, and the cost and pressure are high;

2. the manufacturing process is multiple, the processing is complicated, and the labor cost is a large proportion of the product;

3. the metal batteries are easy to explode when being bulged, so that safety risks are caused to users;

4. when the battery is fixed in a narrow space, the battery is very inconvenient and cannot be stably installed, and the battery is easily damaged and leaked due to extrusion when the battery touches other elements;

therefore, a new plastic shell lithium battery needs to be developed to solve the above problems and improve the technical development degree of the micro battery.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a novel plastic shell lithium cell for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the utility model provides a novel plastic shell lithium cell, includes battery body, battery body comprises output module and power module, power module is including electrolyte tank box, electrolyte tank box one end sets up the notch, output module is including the end cap, the end cap agrees with electrolyte tank box's notch mutually, just end cap and electrolyte tank box are plastic material integrated into one piece.

Furthermore, a boss is arranged on one side of the plug, and two convex ring strips are arranged around the outer wall of the boss side by side.

Further, the boss is inosculated with the notch area of electrolyte tank box and is the gomphosis and connects, and encircles the inner wall a week of electrolyte tank box notch department is equipped with two concave ring grooves side by side, two the ring bead agrees with mutually with two concave ring grooves.

Furthermore, a sealing rubber strip is arranged on one side, close to the boss, of the plug, and the sealing rubber strip is arranged around the boss and movably sleeved with the outer wall of the boss.

Furthermore, the thickness of the sealing rubber strip is 0.15-1.2 mm.

Furthermore, one side, far away from the boss, of the plug is provided with an anode external connection line and a cathode external connection line respectively, and the plug is located between the anode external connection line and the cathode external connection line and is provided with an exhaust hole.

Compared with the prior art, the beneficial effects of the utility model are that:

the micro-battery electrolyte tank box of the utility model can utilize plastic materials to replace the prior external packaging multiple material layers, and can implement intelligent molding fast mass production by utilizing the corresponding mould, so that the lithium batteries have consistent appearance and convenient processing, simultaneously greatly reduces the production cost, increases the utilization rate of the internal space of the batteries, maximizes the capacity of the battery liquid stored in the batteries, has simple structure and simple processing procedures, can realize most procedures to be processed by automatic equipment, reduces the labor cost expenditure, can comprehensively and effectively improve the anticorrosion effect on the anticorrosion plastic material layer of the electrolyte tank box, has certain stability when the battery bulge phenomenon occurs, can generate cracks or push out the plug when reaching the critical point of the bulge, ensures that the electrolyte directly flows out, and avoids violent explosion phenomenon, improve user's security, can effectively more stable when narrow and small space installation simultaneously, accessible buckle etc. stabilize to do not occupy too much inner space, reduce the contact extrusion damaged phenomenon with other components, improved life.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the plug structure of the present invention;

FIG. 3 is a schematic view of the structure of the electrolyte tank of the present invention;

FIG. 4 is an enlarged view of area A in FIG. 2;

fig. 5 is an enlarged view of region B in fig. 3.

Description of the drawings: 1. a battery body; 11. an output module; 111. a plug; 111a, a boss; 111a-1, sealing rubber strips; 111a-2, convex ring strips; 112. an anode external connection wire; 113. a negative electrode external connection wire; 114. an exhaust hole; 12. a power supply module; 121. an electrolyte tank; 121a, a concave ring groove.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, please refer to fig. 1-3, a novel plastic casing lithium battery includes a battery body 1, the battery body 1 is composed of an output module 11 and a power supply module 12, the power supply module 12 includes an electrolyte tank box 121, a notch is disposed at one end of the electrolyte tank box 121, the output module 11 includes a plug 111, the plug 111 fits with the notch of the electrolyte tank box 121, and can be rapidly disassembled and assembled, and the plug 111 and the electrolyte tank box 121 are both formed integrally by plastic material, the plastic material has good plasticity, and meets the requirement of product space by different shapes, for example, the shape design of the product is adapted in a narrow space structure of a certain device, and different molds are used for production, corresponding fixing ears connected by hot melting on the plastic casing can be fixed at a certain designated position of the device by screws, the electrolyte adopted by the battery is generally sulfuric acid electrolyte and has corrosivity, and the plastic material is added with a corresponding anti-corrosion material, so that the corrosion resistance can be effectively improved, and the service life is prolonged.

Referring to the attached drawings 2-5, a boss 111a is arranged on one side of the plug 111, two convex ring strips 111a-2 are arranged around the outer wall of the boss 111a side by side, the boss 111a is engaged with the notch area of the electrolyte tank box 121 and is connected with the notch area in an embedded manner, two concave ring grooves 121a are arranged around the inner wall of the notch of the electrolyte tank box 121 side by side, the two convex ring strips 111a-2 are engaged with the two concave ring grooves 121a, and the notch is blocked by the boss 111a on the plug 111, so that the two convex ring strips 111a-2 are in interference fit with the two concave ring grooves 121a and are clamped with each other, and the disassembly can be realized, and the assembly is also very convenient.

Referring to fig. 4, a sealing rubber strip 111a-1 is arranged on one side of the plug 111 close to the boss 111a, the sealing rubber strip 111a-1 is arranged around the boss 111a and movably sleeved with the outer wall of the boss 111a, the thickness of the sealing rubber strip 111a-1 is 0.15-1.2mm, the sealing rubber strip 111a-1 is made of anti-corrosion high-temperature-resistant plastic material, and after the boss 111a on the plug 111 plugs the notch, the sealing rubber strip 111a-1 is squeezed between the plug 111 and the electrolyte tank box 121, so that a good sealing effect can be achieved.

Referring to fig. 2, a positive external connection wire 112 and a negative external connection wire 113 are respectively disposed on a side of the plug 111 away from the boss 111a, the positive external connection wire 112 and the negative external connection wire 113 respectively penetrate through the plug 111 and are hermetically connected, an exhaust hole 114 is disposed between the positive external connection wire 112 and the negative external connection wire 113 of the plug 111, the exhaust hole 114 is a conventional battery vent structure, when a lithium battery is produced, a corresponding vacuum equipment exhaust pipe is inserted from the exhaust hole 114, so that the internal air of the battery body 1 is exhausted, and then, an electrolyte is injected into the inside from the exhaust hole 114, so that after the electrolyte is filled, the exhaust hole 114 realizes a normal exhaust function when the electrolyte reacts.

The utility model discloses a concrete operation flow as follows:

firstly, after electrolyte is injected into an electrolyte tank box 121, a lug boss 111a on a plug 111 is used for plugging a notch, so that two lug ring strips 111a-2 and two concave ring grooves 121a are in interference fit and clamped with each other, a sealing rubber strip 111a-1 is extruded between the plug 111 and the electrolyte tank box 121, a corresponding vacuum equipment exhaust pipe is inserted from an exhaust hole 114 during production of a lithium battery, so that the internal air of the battery body 1 is extracted, then the electrolyte is injected into the inside from the exhaust hole 114, and electric energy generated by the lithium battery is output to a connected element through an anode external connection wire 112 and a cathode external connection wire 113.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides a novel plastic shell lithium cell, includes battery body (1), its characterized in that, battery body (1) comprises output module (11) and power module (12), power module (12) are including electrolyte tank box (121), electrolyte tank box (121) one end sets up the notch, output module (11) are including end cap (111), end cap (111) agree with mutually with the notch of electrolyte tank box (121), just end cap (111) and electrolyte tank box (121) are plastic material integrated into one piece.

2. The novel plastic shell lithium battery as claimed in claim 1, wherein a boss (111a) is provided on one side of the plug (111), and two collar strips (111a-2) are provided side by side around the outer wall of the boss (111 a).

3. The novel plastic shell lithium battery as claimed in claim 2, wherein the boss (111a) is fitted and connected with the notch area of the electrolyte tank box (121) in an embedded manner, two concave ring grooves (121a) are arranged side by side around the inner wall of the notch of the electrolyte tank box (121), and the two convex ring strips (111a-2) are fitted with the two concave ring grooves (121 a).

4. The novel plastic shell lithium battery as claimed in claim 2, wherein a sealing rubber strip (111a-1) is arranged on one side of the plug (111) close to the boss (111a), and the sealing rubber strip (111a-1) is arranged around the boss (111a) for a circle and is movably sleeved with the outer wall of the boss (111 a).

5. The plastic-shell lithium battery as claimed in claim 4, wherein the thickness of the sealing rubber strip (111a-1) is 0.15-1.2 mm.

6. The novel plastic shell lithium battery as claimed in claim 2, wherein one side of the plug (111) away from the boss (111a) is provided with an anode external connection (112) and a cathode external connection (113), and the plug (111) is provided with an air vent (114) between the anode external connection (112) and the cathode external connection (113).