CN213242634U

CN213242634U - Lithium battery based on new energy material technology

Info

Publication number: CN213242634U
Application number: CN201921527737.3U
Authority: CN
Inventors: 李桂亭
Original assignee: Xi'an Avic Electronic Co ltd
Current assignee: Xi'an Avic Electronic Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2021-05-18
Anticipated expiration: 2029-09-16

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a lithium battery based on new energy material technology, which comprises an outer shell and an inner shell, wherein an air bag is arranged between the outer shell and the inner shell, one side of the top of the inner shell is fixedly provided with an anode ear, the other side of the top of the inner shell is fixedly provided with a cathode ear, one side of the inner shell is fixedly provided with an anode material, the other side of the inner shell is fixedly provided with a cathode material, the middle part of the inner shell is fixedly provided with a diaphragm, the inner shell is filled with electrolyte, the top of the anode ear and the cathode ear is adsorbed with a power-off protection device, the lithium battery based on the new energy material technology increases the contact area between the anode material and the cathode material and the electrolyte by arranging the anode material and the cathode material into an S-shaped bending column shape, thereby increasing the utilization rate of, the capacity and the service life of the battery are improved.

Description

Lithium battery based on new energy material technology

Technical Field

The utility model relates to a lithium cell technical field specifically is a lithium cell based on new forms of energy material technique.

Background

Lithium batteries are batteries which use lithium metal or lithium alloy as a negative electrode material and use non-aqueous electrolyte solution, and in 1912, the lithium metal batteries are firstly proposed and researched by Gilbert N.Lewis, and because the chemical properties of the lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high, and the lithium batteries become mainstream at present along with the development of scientific technology.

The electrode of current lithium cell adopts cylindricly more, and battery capacity and life are not very high, and the security performance of lithium cell is not high moreover, and the explosion can be caused if unable direct outage to the problem appears, makes the user be injured.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a lithium cell based on new forms of energy material technique possesses that battery capacity is big, longe-lived, and the advantage of outage safety guarantee device has solved that battery capacity is little, longe-lived, the problem that the safety guarantee nature is low.

The utility model provides a following technical scheme: the utility model provides a lithium cell based on new forms of energy material technique, includes shell body and interior casing, the gasbag has been placed between shell body and the interior casing, one side fixed mounting at interior casing top has anodal ear, the opposite side fixed mounting at interior casing top has the negative pole ear, the inside one side fixed mounting of interior casing has anodal material, the inside opposite side fixed mounting of interior casing has negative pole material, the inside middle part fixed mounting of interior casing has the diaphragm, be full of the electrolyte in the interior casing, anodal ear with the top of negative pole ear adsorbs there is power-off protection device.

Preferably, the power-off protection device comprises a conductive adsorption plate and an electrified joint, the electrified joint is fixedly installed in the middle of the top of the conductive adsorption plate, and two ends of the conductive adsorption plate are not conductive.

Preferably, the power-off protection device is adsorbed on the positive electrode tab and the negative electrode tab, and the adsorption force is very small.

Preferably, the air bag is stretchable.

Preferably, the bottom of the positive tab is fixedly connected with a positive material, and the bottom of the negative tab is fixedly connected with a negative material.

Preferably, the positive electrode material and the negative electrode material both adopt an S-shaped bent column shape.

Preferably, the diaphragm is made of glass fiber.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. according to the lithium battery based on the new energy material technology, the positive electrode material and the negative electrode material are arranged into the S-shaped bent column shape, the contact area between the positive electrode material and the negative electrode material and the electrolyte is increased under the same shell length, the utilization rate of active substances of the positive electrode material and the negative electrode material can be increased during working, the capacity of the battery is improved, and the service life of the battery is prolonged.

2. This lithium cell based on new forms of energy material technique can compress the gasbag through the gasbag that sets up when the problem is bloated in the inner casing, can open the conductive adsorption plate at the top after the gasbag compression to realized the outage, prevented that the battery from continuing to work and arousing big accident, protected battery and personal safety.

Drawings

FIG. 1 is a schematic view of the whole structure of the present invention;

FIG. 2 is a schematic view of the inside of the battery of the present invention;

fig. 3 is a schematic diagram of the structure power-off protection device of the present invention.

In the figure: 1. an outer housing; 2. an inner housing; 3. an air bag; 4. a positive tab; 5. a negative tab; 6. a power-off protection device; 601. a conductive adsorption plate; 602. an electrical connection; 7. a positive electrode material; 8. a negative electrode material; 9. a diaphragm; 10. an electrolyte.

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.

Please refer to fig. 1-3, a lithium battery based on new energy material technology, including outer shell 1 and inner shell 2, gasbag 3 has been placed between outer shell 1 and the inner shell 2, one side fixed mounting at the inner shell 2 top has positive pole ear 4, the opposite side fixed mounting at the inner shell 2 top has negative pole ear 5, one side fixed mounting inside the inner shell 2 has positive pole material 7, positive pole material 7 can select the lithium iron phosphate, the opposite side fixed mounting inside the inner shell 2 has negative pole material 8, negative pole material 8 can select graphite or titanate, the inside middle part fixed mounting of inner shell 2 has diaphragm 9, be filled with electrolyte 10 in the inner shell 2, positive pole ear 4 and negative pole ear 5's top adsorbs there is power-off protection device 6.

Further, the power-off protection device 6 comprises a conductive adsorption plate 601 and an electrified joint 602, wherein the electrified joint 602 is fixedly installed in the middle of the top of the conductive adsorption plate 601, two ends of the conductive adsorption plate 601 are not conductive, the conductive adsorption plate 601 is adsorbed on the positive electrode tab 4 and the negative electrode tab 5, current is conducted to the electrified joint 602 to connect an external device needing a power supply, two sides of the conductive adsorption plate 601 are connected to the outer shell 1, and the power-off protection device is insulated and can prevent the situations of electric leakage, short circuit and the like.

Further, the power-off protection device 6 is adsorbed on the positive electrode tab 4 and the negative electrode tab 5, the adsorption force is small, the power-off protection device can be conveniently disconnected by adopting an adsorption mode, the adsorption force is small, namely the conductive adsorption plate 601 can be supported out after the air bag 3 is stressed, and therefore the power-off function is achieved.

Further, the airbag 3 has flexibility, and when the inner case 2 is inflated, the airbag 3 is pressed, and the top of the airbag 3 is protruded under the pressing of the inner case 2.

Further, the bottom of the positive tab 4 is fixedly connected with a positive material 7, the bottom of the negative tab 5 is fixedly connected with a negative material 8, the positive tab 4 and the negative tab 5 realize the electrifying function by connecting the positive material 7 and the negative material 8, and the current generated in the inner shell 2 is transmitted to the outside through the positive tab and the negative tab.

Furthermore, the anode material 7 and the cathode material 8 both adopt an S-shaped bent column shape, so that the contact area between the anode material and the cathode material and the electrolyte 10 can be increased, the utilization rate of active matters of the anode and the cathode can be increased during operation, and further the capacity and the service life of the battery are increased.

Furthermore, the diaphragm 9 is made of glass fiber, and the glass fiber has good insulation, strong heat resistance, good corrosion resistance and high mechanical strength.

The working principle is as follows: when the lithium battery is used, whether the lithium battery is intact or not is firstly checked, and the lithium battery can be used if no problem exists; firstly, charging a lithium battery, connecting a power supply through a positive electrode tab 4 and a negative electrode tab 5, and gathering lithium ions in a positive electrode material 7 and an electrolyte 10 in an inner shell 2 to a negative electrode to obtain electrons which are reduced into lithium embedded in a negative electrode material 8; the lithium battery can be used after being fully charged, the lithium battery is arranged at a place needing to be used, the lithium battery discharges, the lithium embedded in the negative electrode material 8 loses electrons and enters the electrolyte 10, and lithium ions in the electrolyte 10 move to the positive electrode and then return to the positive electrode material 7; when the battery is used, if a problem occurs in the battery, the inner shell 2 bulges to extrude the air bag 3, the air bag 3 is compressed and then protrudes out of the top and pushes the conductive adsorption plate 601, and the conductive adsorption plate 601 leaves the adsorbed positive lug 4 and the adsorbed negative lug 5, so that the power failure is realized, the battery is prevented from continuously working to cause a large accident, and the safety of the battery and the personal safety is protected; the S-shaped bent columnar anode and cathode materials can be adopted in the charging and discharging processes to fully realize the conversion between lithium ions and lithium, so that the capacity of the battery is increased, the service life of the battery is prolonged, and the battery is more beneficial to environmental protection and use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Also in the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In addition, in the drawings of the present invention, the filling pattern is only for distinguishing the pattern layer, and is not limited to any other pattern.

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. A lithium cell based on new forms of energy material technique, includes shell body (1) and interior casing (2), its characterized in that: placed gasbag (3) between shell body (1) and interior casing (2), one side fixed mounting at interior casing (2) top has anodal ear (4), the opposite side fixed mounting at interior casing (2) top has negative pole ear (5), the inside one side fixed mounting of interior casing (2) has anodal material (7), the inside opposite side fixed mounting of interior casing (2) has negative pole material (8), the inside middle part fixed mounting of interior casing (2) has diaphragm (9), be full of electrolyte (10) in interior casing (2), anodal ear (4) with the top of negative pole ear (5) adsorbs there is outage protection device (6).

2. The lithium battery based on the new energy material technology as claimed in claim 1, wherein: the power-off protection device (6) comprises a conductive adsorption plate (601) and an electrified joint (602), wherein the electrified joint (602) is fixedly installed in the middle of the top of the conductive adsorption plate (601), and two ends of the conductive adsorption plate (601) are not conductive.

3. The lithium battery based on the new energy material technology as claimed in claim 1, wherein: the power-off protection device (6) is adsorbed on the positive electrode lug (4) and the negative electrode lug (5) and has small adsorption force.

4. The lithium battery based on the new energy material technology as claimed in claim 1, wherein: the air bag (3) has elasticity.

5. The lithium battery based on the new energy material technology as claimed in claim 1, wherein: the bottom of the positive lug (4) is fixedly connected with a positive material (7), and the bottom of the negative lug (5) is fixedly connected with a negative material (8).

6. The lithium battery based on the new energy material technology as claimed in claim 1, wherein: the positive electrode material (7) and the negative electrode material (8) are both in an S-shaped bent column shape.

7. The lithium battery based on the new energy material technology as claimed in claim 1, wherein: the diaphragm (9) is made of glass fiber.