CN212011166U

CN212011166U - Solid-state lithium battery packaging structure

Info

Publication number: CN212011166U
Application number: CN202021050903.8U
Authority: CN
Inventors: 王超群
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-11-24
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a solid-state lithium battery packaging structure, including casing and cap, the cap fixed mounting is on the upper portion of casing, the inside fixed mounting of casing has the battery core, the inside upper portion integrated into one piece of casing has the spacing groove, peg graft on the spacing groove and install insulating division board, the upper portion of battery core extends two sets of utmost point ear and the utmost point ear runs through in the cap, the both ends of cap all integrated into one piece have first cutting and second cutting; through the design of casing, cap, slot and cutting, the casing sets up to a body structure, uses the cap to encapsulate the inside lithium cell of casing through the mode of grafting installation to guaranteed the shock resistance of the whole outside casing of lithium cell, the sealed effect of packaging structure has also been guaranteed with the locking of the grafting mounting means cooperation sealing screw of second cutting to the first cutting on the cap simultaneously, the utility model discloses an encapsulation shaping stable in structure.

Description

Solid-state lithium battery packaging structure

Technical Field

The utility model relates to a lithium battery equipment technical field specifically is a solid state lithium battery packaging structure.

Background

The solid lithium battery is the next generation lithium battery technology and has the characteristics of high specific capacity, long cycle life and good safety performance. The solid-state lithium battery has wide application prospects in various fields, battery packaging is a key step for determining the performance of the battery core of the lithium battery, and the current mainstream lithium battery packaging modes mainly comprise three types: cylinder, square and soft package, wherein, soft package encapsulation has advantages such as the security performance is good, light in weight, the capacious and internal resistance is little for cylinder and square encapsulation.

However, the soft package packaging method still has a defect of poor buffering effect, and in order to overcome the defect, in the prior art, a packaging structure of a lithium battery is replaced by a solid package, wherein in a solid lithium battery packaging structure (publication number CN209896115U) proposed in 03/01/2020, the impact resistance of the solid packaging structure is enhanced by structures such as a sealing ring, a rubber plate and the like, however, the overall structure of the solid lithium battery packaging structure is composed of a first shell and a second shell, the first shell and the second shell are locked and fixed by bolts, and the external shell of the lithium battery cannot be well guaranteed to have good impact resistance by the locking and fixing method of the bolts, so that a solid lithium battery packaging structure needs to be proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solid-state lithium cell packaging structure sets up the main casing of battery into a body structure to carry out seal package to the lithium cell through the cap that has grafting structure, the whole shock resistance of casing has been guaranteed to a body structure, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a solid-state lithium battery packaging structure, includes casing and cap, cap fixed mounting is on the upper portion of casing, the inside fixed mounting of casing has the battery core, the inside upper portion integrated into one piece of casing has the spacing groove, peg graft on the spacing groove and install insulating division board, the upper portion of battery core extends two sets of utmost point ears just utmost point ear runs through in the cap.

The improved structure of the shell comprises a shell cover and is characterized in that a first inserting strip and a second inserting strip are integrally formed at two ends of the shell cover, side grooves are formed at two ends of the upper portion of the shell, a second inserting groove is formed in the side portion of the side grooves, a first inserting groove is formed in the bottom of the side grooves, two ends of the shell cover are located in the side grooves, the first inserting strip and the second inserting strip are respectively inserted into the first inserting groove and the second inserting groove, a first inner threaded hole is formed in the side portion of the upper portion of the shell, second inner threaded holes which are symmetrical are formed in two ends of the upper portion of the shell, sealing screws are arranged in the first inner threaded hole and the second inner threaded holes, and the shell cover is locked and sealed on the upper portion.

Preferably, the four corners inside the shell are fixedly connected with rubber base plates for buffering impact.

Preferably, the insulating isolation plate is provided with a through hole, and the tab penetrates through the insulating isolation plate through the through hole.

Preferably, the sealing screw in the first internal thread hole penetrates through the second insert bar of the shell cover and is fixed in the second insert groove in a threaded manner, and the sealing screw in the second internal thread hole penetrates through two ends of the shell cover and is fixed on the upper portion of the shell in a threaded manner.

Preferably, the inner bottom of the shell cover is provided with a tab glue for protecting a tab.

Preferably, the first slot and the second slot are integrally formed, and the first inserting strip and the second inserting strip are integrally formed.

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

through the design of casing, cap, slot and cutting, the casing sets up to a body structure, uses the cap to encapsulate the inside lithium cell of casing through the mode of grafting installation to guaranteed the shock resistance of the whole outside casing of lithium cell, the sealed effect of packaging structure has also been guaranteed with the locking of the grafting mounting means cooperation sealing screw of second cutting to the first cutting on the cap simultaneously, the utility model discloses an encapsulation shaping stable in structure.

Drawings

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

FIG. 2 is a schematic view of the mounting structure of the housing and the housing cover of the present invention;

fig. 3 is a schematic top view of the housing of the present invention;

fig. 4 is a schematic front view of the housing cover of the present invention.

In the figure: 1. a housing; 2. a shell cover; 3. an insulating separator plate; 4. a battery cell; 5. a tab; 6. gluing a tab; 7. a through hole; 8. a limiting groove; 9. a rubber pad; 10. a seal screw; 11. a side groove; 12. a first slip; 13. a second slip; 14. a first internally threaded bore; 15. a second internally threaded bore; 16. a first slot; 17. a second slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a solid-state lithium battery packaging structure, includes casing 1 and

cap

2, 2 fixed mounting on the upper portion of casing 1 of cap, and the inside fixed mounting of casing 1 has battery core 4, and the inside upper portion integrated into one piece of casing 1 has spacing groove 8, and the grafting is installed on spacing groove 8 and is insulated division board 3, and two sets of utmost point ear 5 and utmost point ear 5 run through in cap 2 are extended on the upper portion of battery core 4.

The homogeneous body shaping in both ends of cap 2 has first cutting 12 and second cutting 13, side channel 11 has all been seted up at the upper portion both ends of casing 1, second slot 17 has been seted up to the lateral part of side channel 11, first slot 16 has been seted up to the bottom of side channel 11, the both ends of cap 2 are arranged in side channel 11, first cutting 12 is pegged graft respectively in first slot 16 and second slot 17 with second cutting 13, first internal thread hole 14 has been seted up to the upper portion lateral part of casing 1, second internal thread hole 15 that is the symmetry has been seted up at the upper portion both ends of casing 1, all be provided with sealing screw 10 in first internal thread hole 14 and the second internal thread hole 15, sealing screw 10 locks cap 2 and seals in the upper portion of casing 1.

The equal fixedly connected with in inside four corners department of casing 1 is used for cushioning the rubber tie plate 9 that strikes, through-hole 7 has been seted up on the insulating division board 3, utmost point ear 5 runs through in insulating division board 3 through-hole 7, sealing screw 10 in the first internal thread hole 14 runs through the second of casing 2 and inserts 13 threaded fixation in second slot 17, sealing screw 10 in the second internal thread hole 15 runs through the both ends threaded fixation of casing 2 on the upper portion of casing 1, the interior bottom of casing 2 is provided with the utmost point ear glue that is used for protecting utmost point ear 5, first slot 16 sets up to the integrated into one piece slot with second slot 17, first strip 12 and second strip 13 set up to the integrated into one piece strip of inserting.

The working principle is as follows: this packaging structure passes through casing 1, cap 2, slot and the design of cutting, and casing 1 sets up to a body structure, and the mode through the grafting installation uses cap 2 to encapsulate 1 inside lithium cell of casing to guaranteed the shock resistance of the whole outside casing of lithium cell, the sealed effect of packaging structure has also been guaranteed with the locking of the grafting mounting means cooperation sealing screw 10 of second cutting 13 to first cutting 12 on cap 2 simultaneously, the utility model discloses an encapsulation shaping stable in structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a solid-state lithium cell packaging structure, includes casing (1) and cap (2), its characterized in that: the shell cover (2) is fixedly arranged on the upper portion of the shell (1), the battery core (4) is fixedly arranged inside the shell (1), a limiting groove (8) is integrally formed in the upper portion of the inside of the shell (1), the insulating isolation plate (3) is installed on the limiting groove (8) in an inserted mode, two groups of lugs (5) extend out of the upper portion of the battery core (4), and the lugs (5) penetrate through the shell cover (2);

a first inserting strip (12) and a second inserting strip (13) are integrally formed at two ends of the shell cover (2), both ends of the upper part of the shell (1) are provided with side grooves (11), the side part of each side groove (11) is provided with a second slot (17), a first slot (16) is arranged at the bottom of the side groove (11), two ends of the shell cover (2) are positioned in the side groove (11), the first inserting strip (12) and the second inserting strip (13) are respectively inserted into the first slot (16) and the second slot (17), a first internal thread hole (14) is arranged at the side part of the upper part of the shell (1), two ends of the upper part of the shell (1) are provided with symmetrical second internal thread holes (15), sealing screws (10) are arranged in the first internal thread hole (14) and the second internal thread hole (15), the sealing screw (10) locks and seals the shell cover (2) on the upper part of the shell (1).

2. The solid state lithium battery package structure of claim 1, wherein: the rubber cushion plates (9) used for buffering impact are fixedly connected to four corners inside the shell (1).

3. The solid state lithium battery package structure of claim 1, wherein: the insulating isolation plate (3) is provided with a through hole (7), and the tab (5) penetrates through the insulating isolation plate (3) through the through hole (7).

4. The solid state lithium battery package structure of claim 1, wherein: and the sealing screw (10) in the first internal thread hole (14) penetrates through the second inserting strip (13) of the shell cover (2) and is fixed in the second inserting groove (17) in a threaded manner, and the sealing screw (10) in the second internal thread hole (15) penetrates through two ends of the shell cover (2) and is fixed on the upper part of the shell (1) in a threaded manner.

5. The solid state lithium battery package structure of claim 1, wherein: and the inner bottom of the shell cover (2) is provided with a tab glue for protecting the tabs (5).

6. The solid state lithium battery package structure of claim 1, wherein: the first slot (16) and the second slot (17) are integrally formed, and the first inserting strip (12) and the second inserting strip (13) are integrally formed.