Puncture-resistant circular battery

Abstract

The utility model discloses an anti-puncture circular battery which comprises a battery cell, and an anti-puncture shell capable of preventing puncture is arranged outside the battery cell; when a sharp object is inserted into the side wall of the round battery, the sharp object is firstly contacted with the outer film made of thermoplastic resin so as to achieve the effect of resisting heat and chemical corrosion to the outside of the battery, and when the outer film is punctured, the sharp object is contacted with the anti-penetration shell made of silicon nitride, and the structural strength of the round cylinders arranged on the outer side of the anti-penetration shell in an array manner is higher than that of a common shell; the anti-penetration shell can be effectively prevented from being directly punctured, an inner flat film on the inner wall of the anti-penetration shell can further improve the heat conduction effect on heat generated when the battery works, and meanwhile outer covering strips arranged on the upper side and the lower side of the anti-penetration shell can prevent the anti-penetration shell from being disengaged by inserting triangular supporting strips in the middles of the outer covering strips into empty grooves in the anti-penetration shell. The practicability of the battery is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a puncture -resistant round battery. BACKGROUND

[0002] Battery refers to cup, tank or other container or composite container part space of having electrolyte solution and metal electrode to produce electric current, can convert chemical energy into electric energy device, battery is divided into round, square, soft package, blade, flat type, polygonal type and flexible battery according to kind, when battery suffers the puncture of external sharp object, if there is not enough puncture resistance, the shell of battery can be punctured, lead to the direct contact of inside positive and negative material, the direct contact of positive and negative will produce large current, namely short circuit phenomenon, short circuit will not only lead to battery rapid heating, release a large amount of energy, also can cause fire, explosion and so on, in view of this, a puncture -resistant round battery is provided. SUMMARY

[0003] To solve the above at least one technical defect, the utility model provides a puncture -resistant round battery, including electric core, and the outer wall of the electric core is provided with the anti -puncture shell of preventing puncture.

[0004] Further, the outer wall of the anti -puncture shell is circular cylindrical circumferential array setting, and the inner wall of the anti -puncture shell is further provided with the circular inner flat film.

[0005] Further, the triangular air slot is further provided between two column bodies, and the matching outer covering strip is arranged in the air slot.

[0006] Further, the middle part of the outer covering strip is provided with the circumferential array triangular supporting strip, the supporting strip is inserted with the air slot, and the both sides of the supporting strip are provided with the circular ring, and the outer side of the anti -puncture shell and the outer covering strip is further provided with the circular outer film.

[0007] Further, the outer film is made of thermoplastic resin material, and the material of the anti -puncture shell and the outer covering strip is silicon nitride.

[0008] Beneficial effect: when the sharp object is inserted into the side wall of the round battery, first contact with the outer film of thermoplastic resin material, to achieve the effect of battery outer heat and chemical corrosion resistance, when the outer film is punctured, contact with the anti -puncture shell of silicon nitride material, because the structural strength of the circular column of the anti -puncture shell outside array is higher than that of the general shell, the anti -puncture shell can be effectively prevented from being directly punctured, and the inner flat film of the inner wall of the anti -puncture shell can further improve the heat conduction effect of the heat generated during the operation of the battery, and the outer covering strip arranged on the upper and lower sides of the anti -puncture shell can prevent the anti -puncture shell from being inserted into the air slot in the middle part of the triangular supporting strip of the outer covering strip to prevent the anti -puncture shell from being inserted into the air slot in the middle part of the triangular supporting strip of the outer covering strip, further improve the practicability of the battery.

[0009] The purposes, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the whole structure schematic diagram of the utility model.

[0011] Figure 2 It is the whole section structure schematic diagram of the utility model.

[0012] Figure 3 It is the anti-penetration structure schematic diagram of the utility model.

[0013] Figure 4 It is the outer covering strip structure schematic diagram of the utility model.

[0014] In Figures 1 to 4 , the corresponding relation of component name or line with drawing number is: electric core 1, anti-penetration 2, inner flat film 201, empty slot 202, outer covering strip 3, support strip 301, outer film 4. DETAILED DESCRIPTION

[0015] Please refer to Figures 1 to 4 ;

[0016] The embodiment provides an anti-penetration round battery, which comprises an electric core 1, and the electric core 1 is externally provided with anti-penetration anti-penetration 2; referring to Figures 1 to 4 , the outer wall of the anti-penetration 2 is arranged in a circular cylindrical circumferential array, and the inner wall of the anti-penetration 2 is further provided with a circular inner flat film 201, triangular empty slots 202 are further arranged between two cylindrical bodies, the outer covering strip 3 matched with the empty slots 202 is arranged in the empty slots 202, the middle part of the outer covering strip 3 is provided with a circumferential array of triangular support strips 301, the support strips 301 are in plug-in connection with the empty slots 202, the two sides of the support strips 301 are both provided with a circular sleeve ring, and the outer side of the anti-penetration 2 and the outer covering strip 3 is further provided with a circular outer film 4; the outer film 4 is made of thermoplastic resin material, and the material of the anti-penetration 2 and the outer covering strip 3 is silicon nitride;

[0017] In the specific embodiment, when a sharp object is inserted into the side wall of the round battery, the outer film 4 made of thermoplastic resin material is first contacted, so that the effect of resisting heat and chemical corrosion outside the battery is achieved; when the outer film 4 is penetrated, the anti-penetration 2 made of silicon nitride material is contacted; since the structure strength of the circular cylindrical body arranged on the outer side of the anti-penetration 2 is higher than that of a general shell, the anti-penetration 2 can be effectively prevented from being directly penetrated; the inner flat film 201 on the inner wall of the anti-penetration 2 can further improve the heat conduction effect of the heat generated during the operation of the battery; the outer covering strips arranged on the upper and lower sides of the anti-penetration 2 can prevent the anti-penetration 2 from being pulled out by inserting the triangular support strips 301 in the middle part of the outer covering strips into the empty slots 202 in the anti-penetration 2, so that the practicability of the battery is further improved.

[0018] Further, the electric core 1 is provided with a cap on one side, the electric core 1 contains electrolyte and other components such as positive and negative electrodes, and the electric core 1 is a device commonly used by people in the technical field, and its specific structure will not be repeated, and silicon nitride is a material with very high thermal conductivity, which is more than 3 times higher than copper, and is one of the best non-metallic materials in terms of thermal conductivity, facilitating efficient heat dissipation of the battery when heating, and silicon nitride also has high strength and wear resistance to reduce the probability of being punctured, and silicon nitride is not conductive, which can effectively prevent the battery from short-circuiting, and the optimal material of the outer film 4 is polypropylene or polyethylene, which has good mechanical strength, heat resistance and chemical corrosion resistance, and can be used to make single-layer or multi-layer films, which can well protect the internal structure of the battery.

Claims

1. A puncture-resistant round battery comprising a cell (1), characterized in that: The electric core (1) is externally provided with a puncture-proof anti-penetration shell (2); The outer wall of the anti-penetration shell (2) is arranged in a circular cylindrical circumferential array, and the inner wall of the anti-penetration shell (2) is further provided with a circular inner flat film (201).

2. The puncture-resistant, round battery of claim 1, wherein: A triangular-shaped air slot (202) is further arranged between two columnar bodies, and a matched outer covering strip (3) is arranged in the air slot (202).

3. The puncture-resistant, round battery of claim 2, wherein: The middle part of the outer covering strip (3) is provided with a circumferential array of triangular-shaped supporting strips (301), the supporting strips (301) are insertedly arranged with the air slots (202), and the two sides of the supporting strips (301) are both provided with a circular ring, and the outer side of the anti-penetration shell (2) and the outer covering strip (3) is further provided with a circular outer film (4).

4. The puncture-resistant, round battery of claim 3, wherein: The outer film (4) is made of thermoplastic resin material, and the material of the anti-penetration shell (2) and the outer covering strip (3) is silicon nitride.

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