CN219553821U

CN219553821U - Novel lithium battery

Info

Publication number: CN219553821U
Application number: CN202320485654.2U
Authority: CN
Inventors: 祝荣昌; 张劲波; 刘军; 王雅锋
Original assignee: Shenzhen Jingming Technology Co ltd
Current assignee: Shenzhen Jingming Technology Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-08-18
Anticipated expiration: 2033-03-14

Abstract

The utility model provides a novel lithium battery, which comprises a lithium battery and an explosion-proof mechanism, wherein the explosion-proof mechanism comprises a ventilation groove, a sliding groove, a limiting block, a spring, a sliding block, a baffle plate and a connecting groove, a charging hole is formed in one side of the lithium battery, the explosion-proof mechanism is arranged on one side of the lithium battery, an installation cover is connected with the upper surface of the lithium battery in a threaded manner, and a handle is fixedly connected with the upper surface of the installation cover. This novel lithium cell, through the setting of ventilation groove, the sliding tray, the spacing groove, the stopper, a spring, the sliding block, baffle and spread groove, when using, the inside of spread groove UNICOM lithium cell, when the atmospheric pressure in the lithium cell is greater than the elasticity of spring, the atmospheric pressure can jack-up the baffle, discharge through the space of jack-up, when the atmospheric pressure in the lithium cell diminishes, with the baffle top back, the spread groove is plugged up, when the atmospheric pressure in the lithium cell is too high again, can reuse, just so reached the explosion-proof of lithium cell, simultaneously can reuse's effect.

Description

Novel lithium battery

Technical Field

The utility model relates to the technical field related to lithium batteries, in particular to a novel lithium battery.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution, which uses lithium metal or lithium alloy as a positive/negative electrode material, and can be broadly divided into two types: lithium metal batteries and lithium ion batteries, lithium ion batteries do not contain metallic lithium, and can be charged, the fifth generation lithium metal batteries of rechargeable batteries are born in 1996, the safety, specific capacity, self-discharge rate and cost performance ratio of the lithium metal batteries are superior to those of lithium ion batteries, due to the limitation of high technical requirements of the lithium metal batteries, only companies in few countries are producing the lithium metal batteries, the lithium batteries are applied to cardiac pacemakers at the earliest stage, the self-discharge rate of the lithium batteries is extremely low, the discharge voltage is mild, and the like, so that the pacemakers implanted into human bodies can operate for a long time without recharging, the lithium batteries generally have a nominal voltage higher than 3.0V, are more suitable for being used as integrated circuit power supplies, and manganese dioxide batteries are widely used in calculators, digital cameras and watches, the higher the overcharge voltage, the higher the danger, the less than half the number of lithium atoms left in the positive electrode material after the lithium cell voltage is higher than 4.2V, the cells are always collapsed at this time, and the permanent capacity loss of the battery is generated, if the battery is continuously charged, since the cells of the negative electrode are already filled with lithium atoms, the subsequent lithium metal can be accumulated on the surface of the negative electrode material, the lithium atoms can grow dendritic crystals from the surface of the negative electrode to the direction of lithium ions, the lithium metal crystals can pass through the diaphragm, so that the positive electrode and the negative electrode are short circuited, and sometimes the battery explodes before the short circuit occurs, because the electrolyte and other materials can decompose to generate gas during the overcharge process, so that the battery shell or the pressure valve is swelled and broken, oxygen can react with the lithium atoms accumulated on the surface of the negative electrode, and then explodes, the battery core of the existing lithium battery may generate abnormal gas due to chemical reaction inside the battery when the battery core fails or is excessively charged, so that the internal air pressure is too high, and an explosion accident is caused.

However, in the existing lithium battery, when the battery core of most lithium batteries fails or is excessively charged, abnormal gas may be generated due to chemical reaction inside the battery, so that the internal air pressure is too high, and an explosion accident is caused.

Disclosure of Invention

The utility model aims to provide a novel lithium battery, which solves the problems that in the prior lithium battery proposed in the prior art, during the use process, most of battery cores of the lithium battery possibly generate abnormal gas due to chemical reaction in the battery to cause excessive internal air pressure and explosion accidents when faults or overcharge and the like occur, and the explosion-proof means in the prior art are provided with explosion-proof membranes, and when the internal pressure of the battery is excessive, the gas breaks through the explosion-proof membranes to release the air pressure, but the replacement of the explosion-proof membranes is very troublesome and the cost is high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel lithium cell, includes lithium cell and explosion-proof mechanism, explosion-proof mechanism includes ventilation groove, sliding tray, spacing groove, stopper, spring, sliding block, baffle and spread groove, the hole that charges has been seted up to one side of lithium cell, one side of lithium cell is provided with explosion-proof mechanism, lithium cell top surface threaded connection has the installation lid, the top fixed surface of installation lid is connected with the handle, the top surface of lithium cell is provided with sealing mechanism.

Preferably, the explosion-proof mechanism comprises an air vent, a sliding groove, a limit block, a spring, a sliding block, a baffle and a connecting groove, wherein the air vent is formed in one side of the lithium battery, the sliding groove is formed in the inner side surface of the air vent, the limit groove is formed in the inner bottom end of the sliding groove, the limit block is slidably connected with the inner side surface of the limit groove, the spring is fixed on one side of the limit block, the limit block is fixedly connected with the limit block, the baffle is welded on one side of the limit block, the connecting groove is formed in the inner bottom end of the air vent, and the other end of the spring is welded at the bottom end of the limit groove.

Preferably, the size of the limit groove is identical with that of the limit block, and the limit block is symmetrically arranged by the central axis of the baffle plate.

Preferably, the sealing mechanism comprises a positioning groove, a fixing block, a positioning block, a sealing strip and a sealing groove, wherein the positioning groove is formed in the top end of the outer side of the lithium battery, the fixing groove is formed in the bottom end of the inner side of the positioning groove, the fixing block is mounted on the inner side surface of the fixing groove, the positioning block is fixedly connected with one side of the fixing block, the sealing strip is welded on the other side of the positioning block, and the sealing groove is formed in the inner side surface of the mounting cover.

Preferably, the size of the positioning groove is smaller than that of the fixing groove, and the sealing strip is matched with the sealing groove in size.

Compared with the prior art, the utility model has the beneficial effects that: this novel lithium cell, through the spread groove, the sliding tray, the spacing groove, the stopper, a spring, the sliding block, baffle and spread groove's setting, when using, the inside of spread groove UNICOM lithium cell, when the atmospheric pressure in the lithium cell is greater than the elasticity of spring, the atmospheric pressure can jack up baffle while spring contraction, the clearance through the jack-up is discharged, when the atmospheric pressure in the lithium cell diminishes, the spring is recovered, with the baffle top back, the shutoff spread groove, when the atmospheric pressure in the lithium cell is too high again, can reuse, and the baffle can produce sealed effect to the spread groove under the state of shutoff spread groove, prevent that external liquid from getting into the lithium cell inside, explosion-proof of lithium cell has just so been reached, simultaneously can reuse's effect.

Drawings

FIG. 1 is a schematic diagram of a side view of the present utility model;

FIG. 2 is a schematic cross-sectional view of an explosion-proof mechanism of the present utility model;

FIG. 3 is a schematic cross-sectional view of a seal mechanism of the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present utility model.

In the figure: 1. a lithium battery; 2. a charging hole; 3. an explosion-proof mechanism; 301. a vent groove; 302. a sliding groove; 303. a limit groove; 304. a limiting block; 305. a spring; 306. a sliding block; 307. a baffle; 308. a connecting groove; 4. a mounting cover; 5. a handle; 6. a sealing mechanism; 601. a positioning groove; 602. a fixing groove; 603. a fixed block; 604. a positioning block; 605. a sealing strip; 606. and (5) sealing the groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a novel lithium cell, including lithium cell 1 and explosion-proof mechanism 3, explosion-proof mechanism 3 includes ventilation groove 301, sliding tray 302, spacing groove 303, stopper 304, spring 305, sliding block 306, baffle 307 and spread groove 308, charging hole 2 has been seted up to one side of lithium cell 1, one side of lithium cell 1 is provided with explosion-proof mechanism 3, 1 top surface threaded connection of lithium cell has installation lid 4, the top fixed surface of installation lid 4 is connected with handle 5, the top surface of lithium cell 1 is provided with sealing mechanism 6.

Further, explosion-proof mechanism 3 includes ventilation slot 301, sliding tray 302, spacing groove 303, stopper 304, spring 305, sliding block 306, baffle 307 and spread groove 308, ventilation slot 301 has been seted up to one side of lithium cell 1, sliding tray 302 has been seted up to the inboard surface of ventilation slot 301, spacing groove 303 has been seted up to the inboard bottom of sliding tray 302, the inboard surface sliding connection of spacing groove 303 has stopper 304, one side of stopper 304 is fixed with spring 305, one side fixedly connected with stopper 304, one side welding of stopper 304 has baffle 307, the spread groove 308 has been seted up to the inboard bottom of ventilation slot 301, the other end welding of spring 305 is in the bottom of spacing groove 303, through ventilation slot 301, sliding tray 302, spacing groove 303, stopper 304, spring 305, sliding block 306, baffle 307 and spread groove 308's setting, when the elasticity in lithium cell 1, the atmospheric pressure can jack-up baffle 307 shrink simultaneously, discharge through jack-up, when the atmospheric pressure in lithium cell 1 is less, spring 305, can be stopped up the inside the lithium cell 308, can be stopped up the inside of lithium cell 1 by the high pressure, can be reached in the sealed condition when the lithium cell 1, and the inside can be stopped up by the sealed off, and the inside can be reached at the same time, the inside of the sealed and can be connected with the inside in the sealed condition when the lithium cell 308, and can reach the inside the sealed condition of the inside of the lithium cell is sealed.

Further, the size of the limiting groove 303 is identical to that of the limiting block 304, the limiting block 304 is symmetrically arranged with the central axis of the baffle 307, and when the limiting block is used, the limiting block 304 is symmetrically arranged with the central axis of the baffle 307, so that the stress of the baffle 307 is more uniform and the baffle 307 cannot be inclined.

Further, sealing mechanism 6 includes constant head tank 601, fixed slot 602, fixed block 603, locating piece 604, sealing strip 605 and seal groove 606, constant head tank 601 has been seted up on the outside top of lithium cell 1, fixed slot 602 has been seted up to the inboard bottom of constant head tank 601, fixed slot 602's inboard surface mounting has fixed block 603, one side fixedly connected with locating piece 604 of fixed block 603, sealing strip 605 has been welded to the opposite side of locating piece 604, seal groove 606 has been seted up to the inboard surface of installation lid 4, through setting up of constant head tank 601, fixed slot 602, fixed block 603, locating piece 604, sealing strip 605 and seal groove 606, when installation lid 4 is installed, sealing strip 605 can get into inside seal groove 606, just so can make lithium cell 1 reach sealed effect, prevent inside intaking, simultaneously constant head tank 601, fixed block 603 and locating piece 604 can produce the location effect to sealing strip 605, prevent that sealing strip 605 from dropping when the installation.

Further, the size of the positioning groove 601 is smaller than that of the fixing groove 602, the sealing strip 605 is matched with the size of the sealing groove 606, and the positioning groove 601 is smaller than that of the fixing groove 602 when in use through the arrangement of the positioning groove 601 and the fixing groove 602, so that a positioning effect can be generated on the sealing strip 605 when the sealing strip 605 is installed.

Working principle: firstly, the connecting groove 308 is communicated with the interior of the lithium battery 1, when the air pressure in the lithium battery 1 is greater than the elasticity of the spring 305, the air pressure can jack up the baffle 307 and the spring 305 is contracted, the air pressure is discharged through a jack-up gap, when the air pressure in the lithium battery 1 is reduced, the spring 305 is restored, the baffle 307 is jacked back to block the connecting groove 308, when the air pressure in the lithium battery 1 is too high again, the air pressure can be reused, thus achieving the explosion-proof effect of the lithium battery 1 and the effect of recycling, the connecting groove 308 is communicated with the interior of the lithium battery 1, when the air pressure in the lithium battery 1 is greater than the elasticity of the spring 305, the air pressure can jack up the baffle 307 and the spring 305 is contracted, the air pressure is discharged through a jack-up gap, when the air pressure in the lithium battery 1 is reduced, the spring 305 is restored, the baffle 307 is jacked back to block the connecting groove 308, when the atmospheric pressure in the lithium cell 1 is too high again, can reuse, and baffle 307 can produce sealed effect to the spread groove 308 under the state of plugging up spread groove 308, prevent that external liquid from getting into the inside of lithium cell 1, just so reach the explosion-proof of lithium cell 1, simultaneously can reuse's effect, when installation lid 4 installs, sealing strip 605 can get into inside seal groove 606, just so can make lithium cell 1 reach sealed effect, prevent inside water intaking, simultaneously constant head tank 601, fixed slot 602, fixed block 603 and locating piece 604 can produce the location effect to sealing strip 605, prevent that sealing strip 605 from dropping when the installation, the size of constant head tank 601 is less than the size of fixed slot 602, just so can produce the location effect to sealing strip 605 when sealing strip 605 is installed, just so accomplished a novel lithium cell.

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

Claims

1. The utility model provides a novel lithium cell, includes lithium cell (1) and explosion-proof mechanism (3), its characterized in that: the utility model provides an explosion-proof mechanism (3) is including ventilation groove (301), sliding tray (302), spacing groove (303), stopper (304), spring (305), sliding block (306), baffle (307) and spread groove (308), charging hole (2) have been seted up to one side of lithium cell (1), one side of lithium cell (1) is provided with explosion-proof mechanism (3), lithium cell (1) top surface threaded connection has installation lid (4), the top fixed surface of installation lid (4) is connected with handle (5), the top surface of lithium cell (1) is provided with sealing mechanism (6).

2. The novel lithium battery of claim 1, wherein: the explosion-proof mechanism (3) comprises an air vent (301), a sliding groove (302), a limiting groove (303), a limiting block (304), a spring (305), a sliding block (306), a baffle (307) and a connecting groove (308), wherein the air vent (301) is formed in one side of the lithium battery (1), the sliding groove (302) is formed in the inner side surface of the air vent (301), the limiting groove (303) is formed in the inner side bottom end of the sliding groove (302), the limiting block (304) is slidably connected with the inner side surface of the limiting groove (303), the spring (305) is fixed on one side of the limiting block (304), the limiting block (304) is fixedly connected with the limiting block (304), the baffle (307) is welded on one side of the limiting block (304), the connecting groove (308) is formed in the inner side bottom end of the air vent (301), and the other end of the spring (305) is welded on the bottom end of the limiting groove (303).

3. The novel lithium battery of claim 2, wherein: the limiting groove (303) is matched with the limiting block (304) in size, and the limiting block (304) is symmetrically arranged by the central axis of the baffle (307).

4. The novel lithium battery of claim 1, wherein: sealing mechanism (6) are including constant head tank (601), fixed slot (602), fixed block (603), locating piece (604), sealing strip (605) and seal groove (606), constant head tank (601) have been seted up on the outside top of lithium cell (1), fixed slot (602) have been seted up to the inboard bottom of constant head tank (601), the inboard surface mounting of fixed slot (602) has fixed block (603), one side fixedly connected with locating piece (604) of fixed block (603), the opposite side welding of locating piece (604) has sealing strip (605), seal groove (606) have been seted up to the inboard surface of installation lid (4).

5. The novel lithium battery of claim 4, wherein: the size of the positioning groove (601) is smaller than that of the fixing groove (602), and the sealing strip (605) is matched with the sealing groove (606) in size.