CN115133161A - Lithium battery with long cycle life - Google Patents
Lithium battery with long cycle life Download PDFInfo
- Publication number
- CN115133161A CN115133161A CN202210603239.2A CN202210603239A CN115133161A CN 115133161 A CN115133161 A CN 115133161A CN 202210603239 A CN202210603239 A CN 202210603239A CN 115133161 A CN115133161 A CN 115133161A
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- CN
- China
- Prior art keywords
- component
- battery body
- conductive
- base
- alarm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 29
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000008961 swelling Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/574—Devices or arrangements for the interruption of current
- H01M50/578—Devices or arrangements for the interruption of current in response to pressure
Abstract
The invention relates to a long-cycle-life lithium battery, which comprises a box cover, a base and a battery body arranged on the base, wherein a cathode contact piece and an anode contact piece are arranged at the upper end of the battery body, a sleeve is arranged between the cathode contact piece and the box cover, a conductive component is arranged in the sleeve, a detection component and a disconnection component driven by the detection component are arranged on the base, an alarm component is arranged on a moving path of the detection component, a covering component is arranged on the battery body, a heat dissipation component is also arranged on the base, the battery body alarms under the matching of the covering component and the alarm component when bulging, the detection component is used for cutting off the connection state between the battery body and the conductive component, when gas in an air bag is injected into the detection component through an air pipe, the alarm alarms and automatically cuts off a power supply, and the bulge phenomenon of the battery body is automatically detected.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a lithium battery with a long cycle life.
Background
Lithium batteries can be broadly classified into two types: the lithium battery with long cycle life is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, and because the chemical characteristics 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 battery with long cycle life can be charged by special equipment, so the lithium battery with long cycle life is particularly widely applied to industries such as storage battery cars, electronic products and the like.
However, under the conditions of charging, overdischarging and extreme severe use environment of the long-cycle-life lithium battery, the swelling phenomenon is easy to occur, and once the long-cycle-life lithium battery is used again after the swelling phenomenon occurs, the dangerous probability is high, explosion can be generated in serious cases, great economic loss is caused to a user, and even life safety is threatened.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a lithium battery with long cycle life, wherein a covering assembly is arranged on a battery body, when the battery body swells, gas in an air bag is injected into a detection assembly through an air pipe, an alarm gives an alarm to prevent a product from being damaged after a power supply is cut off, in addition, under the condition that the power supply is not cut off or the battery body is maintained, the detection assembly automatically cuts off the connection state of a conducting wire sheet, a conducting post and a connecting sheet, cuts off the power supply to finish the automatic detection of the swelling phenomenon of the battery body, greatly improves the use safety of the battery body, and protects the life safety of a user.
The technical solution of the invention is as follows:
the utility model provides a long cycle life lithium cell, includes lid, base and installs the battery body on the base, the battery body upper end is provided with the negative and positive pole contact, be provided with the sleeve between negative and positive pole contact and the lid, be provided with conductive component in the sleeve, be provided with determine module and the disconnection subassembly under determine module drives on the base, determine module is provided with the alarm subassembly on the route of removal, be provided with the cover subassembly on the battery body, still be provided with radiator unit on the base, the battery body carries out the police dispatch newspaper under the cooperation of cover subassembly and alarm subassembly when the swell, determine module is used for cutting off the connected state between battery body and the conductive component.
Preferably, the conductive assembly comprises a conductive column welded on the cathode and anode contact plate, and a connecting sheet arranged above the conductive column and penetrating through the box cover.
Preferably, the detection assembly comprises a fixed seat fixedly connected to the base, a cylinder body connected to the fixed seat, a piston slidably disposed in the cylinder body, and a piston rod connected to the piston.
As a preferred, the disconnection subassembly includes that the guide bar, the cover that slide setting on the sleeve establish the spring on the guide bar, connect conducting strip in guide bar one side, slide setting on the sleeve and the insulator spindle that is connected with the conducting strip, set up the chute in insulator spindle one end, be provided with the insulating piece on the guide bar and be connected with the spring, the conducting strip cooperatees with leading electrical pillar, connection piece.
Preferably, the alarm assembly comprises a contact rod slidably arranged on the piston rod, a controller and an alarm arranged on the base, and a spring a connected to the lower end of the contact rod, wherein the contact rod is matched with the controller through an electric signal, and the controller is matched with the alarm through an electric signal.
Preferably, the covering assembly includes an air bag wrapped on the battery body, an air tube connecting the air bag and the cylinder body, and a covering layer covering the outer side of the air bag, wherein the covering layer is made of a heat-conducting material and an inelastic material.
Preferably, the thermal assembly includes a heat conducting fin penetrating through the base, and one end of the heat conducting fin abuts against the outer wall of the cover layer.
Preferably, the connecting sheet, the conductive column and the conductive sheet are made of copper materials.
Preferably, one end of the piston rod is arc-shaped and matched with the inclined groove.
The invention has the beneficial effects that:
1. the battery body is provided with the covering component and the detecting component, the covering layer is not elastic and wraps the air bag, so that the air bag is extruded when the battery body bulges, the extruded gas in the air bag is injected into the cylinder body through the air pipe to push the piston to slide, and the air bag is matched with the warning component and the disconnecting component to remind a user that the battery body bulges and automatically cut off a power supply under the condition of no treatment after warning, so that the battery body is prevented from being further damaged or exploded, in addition, one end of the heat conducting sheet is abutted against the outer wall of the covering layer, heat in the battery body is transmitted out through the heat conducting sheet, the heat radiating effect is ensured, and the battery body is prevented from being damaged due to overhigh temperature.
When the battery body bulges, the piston rod drives the contact rod to slide towards the box cover direction until the contact rod touches the controller, the controller transmits a signal to the alarm through an electric signal, and the alarm gives an alarm to remind a user that the battery body bulges; when the battery body bulge and the alarm is in alarm due to unmanned maintenance or power off, in order to prevent the battery body from further damaging or exploding, the bulge extrudes the air bag to enable the air to push the piston rod to slide, when the piston rod slides to the chute, the insulating rod can be pulled to slide towards one side of the base, so that the conducting strip is separated from the conducting strip and the connecting strip, thereby the power off is realized, the bulge is automatically identified and the power off is realized, in addition, the connecting strip, the conducting strip and the conducting strip are made of copper materials, and the battery has good conductivity.
In conclusion, the lithium battery has the functions of automatically alarming and cutting off the power supply, and is suitable for the technical field of lithium batteries.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic diagram of a long cycle life lithium battery;
FIG. 2 is a schematic view of a cover assembly;
FIG. 3 is a schematic structural diagram of a conductive assembly;
FIG. 4 is a schematic view showing the operation state of the battery body when the battery body is bulged to alarm the alarm component;
FIG. 5 is an enlarged view of FIG. 4 at A;
FIG. 6 is a schematic view of the working state of the battery body when the conductive sheet is separated from the conductive post and the connecting sheet is powered off when the battery body continues to bulge;
FIG. 7 is an enlarged view of FIG. 6 at B;
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely explained by combining the attached drawings.
Example one
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 7, a long cycle life lithium battery, including a box cover 1, a base 2 and a battery body 3 mounted on the base 2, a cathode and anode contact 4 is provided at the upper end of the battery body 3, a sleeve 5 is provided between the cathode and anode contact 4 and the box cover 1, a conductive component 6 is provided in the sleeve 5, a detection component 7 and a disconnection component 8 driven by the detection component 7 are provided on the base 3, the detection component 7 is provided with an alarm component 9 on a moving path, a covering component 10 is provided on the battery body 3, a heat dissipation component 11 is further provided on the base 2, the battery body 3 alarms under the cooperation of the covering component 11 and the alarm component 9 when swelling, and the detection component 7 is used for cutting off the connection state between the battery body 3 and the conductive component 6.
As shown in fig. 3, the conductive assembly 6 includes a conductive column 61 welded on the cathode contact plate 4 and an anode contact plate 4, and a connecting plate 62 disposed above the conductive column 61 and penetrating through the case cover 1, and the battery body 3 and a power supply of a product are connected through the conductive assembly 6.
As shown in fig. 5, the detection assembly 7 includes a fixing base 71 fixedly connected to the base 2, a cylinder 72 connected to the fixing base 71, a piston 73 slidably disposed in the cylinder 72, and a piston rod 74 connected to the piston 73, and the detection assembly 7 is provided to help the battery body 3 cooperate with the disconnection assembly 8 and the alarm assembly 9 when the bulge phenomenon occurs, so as to achieve the effect of automatic detection.
As shown in fig. 3 and 7, the disconnecting assembly 8 includes a guide rod 81 slidably disposed on the sleeve 5, a spring 82 disposed on the guide rod 81, a conductive sheet 83 connected to one side of the guide rod 81, an insulating rod 84 slidably disposed on the sleeve 5 and connected to the conductive sheet 81, and a chute 85 disposed at one end of the insulating rod 84, wherein the guide rod 81 is provided with an insulating sheet 86 and connected to the spring 82, the conductive sheet 83 is matched to the conductive post 61 and the connecting sheet 62, when the battery body 4 swells and the alarm 93 alarms due to unattended maintenance or power failure, the swelling extrudes the airbag 101 to push the piston rod 74 to slide, when the piston rod 74 slides to the chute 85, the insulating rod 84 is pulled to slide toward the base 2, so as to separate the conductive post 61 and the connecting sheet 61, therefore, the power supply is cut off, and the automatic identification of the bulge and the power supply cutting off are realized.
As shown in fig. 5, the alarm assembly 9 includes a contact rod 91 slidably disposed on the piston rod 74, a controller 92 and an alarm 93 disposed on the base 2, and a spring a94 connected to a lower end of the contact rod 91, wherein the contact rod 91 is matched with the controller 92 through an electrical signal, the controller 92 is matched with the alarm 93 through an electrical signal, when the battery body 3 swells, the piston rod 74 drives the contact rod 91 to slide toward the box cover 1 until touching the controller 92, the controller 92 transmits the signal to the alarm 93 through the electrical signal, and the alarm 93 gives an alarm to remind a user that the battery body 3 swells.
As shown in fig. 2, the covering assembly 10 includes an airbag 101 wrapped on the battery body 3, an air tube 102 connecting between the airbag 101 and the cylinder 72, and a covering layer 103 covering the outside of the airbag 101, wherein the covering layer 103 is made of a heat conductive material and an inelastic material, and since the covering layer 103 has no elasticity and wraps the airbag 101, when the battery body 3 swells, the airbag 101 is pressed, and the gas pressed in the airbag 101 is injected into the cylinder 72 through the air tube 103, so that the piston 73 is pushed to slide, and is matched with the alarm assembly 9 and the disconnecting assembly 8.
As shown in fig. 1, the heat dissipation assembly 11 includes a heat conducting fin 111 penetrating through the base 2, one end of the heat conducting fin 111 abuts against the outer wall of the covering layer 103, and the heat in the battery body 3 is transmitted out through the heat conducting fin 111, so as to ensure the heat dissipation effect and prevent the battery body 3 from being damaged due to overhigh temperature.
As shown in fig. 1, the connecting sheet 62, the conductive post 62 and the conductive sheet 83 are made of copper material, and have good conductivity.
As shown in fig. 7, one end of the piston rod 74 is curved and engaged with the inclined groove 85, and the inclined groove 85 is slid by the curved structure.
Example two
As shown in fig. 7, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience; the second embodiment is different from the first embodiment in that: the piston rod 74 is made of a wear-resistant material.
Here, in this embodiment, the piston rod 74 is made of a wear-resistant material, so that the service life of the piston rod is prolonged, and the piston rod and the insulating rod 84 are prevented from being damaged.
In the description of the present invention, it is to be understood that the terms "front-back", "left-right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the invention.
Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.
The present invention is not limited to the above-described embodiments, and it should be noted that various changes and modifications can be made by those skilled in the art without departing from the structure of the present invention, and these changes and modifications should be construed as the scope of the present invention, which does not affect the effect and practicality of the present invention.
Claims (9)
1. The utility model provides a long cycle life lithium cell, includes lid (1), base (2) and installs battery body (3) on base (2), its characterized in that: the battery comprises a battery body (3), and is characterized in that a cathode and anode contact (4) is arranged at the upper end of the battery body (3), a sleeve (5) is arranged between the cathode and anode contact (4) and a box cover (1), a conductive component (6) is arranged in the sleeve (5), a detection component (7) and a disconnection component (8) driven by the detection component (7) are arranged on the base (3), an alarm component (9) is arranged on a moving path of the detection component (7), a covering component (10) is arranged on the battery body (3), a heat dissipation component (11) is further arranged on the base (2), the battery body (3) alarms under the cooperation of the covering component (11) and the alarm component (9) when being bulged, and the detection component (7) is used for cutting off the connection state between the battery body (3) and the conductive component (6).
2. A long cycle life lithium battery as claimed in claim 1, wherein said conductive member (6) comprises a conductive post (61) welded to the cathode and anode contact (4), and a connecting tab (62) disposed above the conductive post (61) and penetrating through the lid (1).
3. A long-cycle-life lithium battery as claimed in claim 1, characterized in that the detection assembly (7) comprises a fixed seat (71) fixedly connected to the base (2), a cylinder (72) connected to the fixed seat (71), a piston (73) slidably arranged in the cylinder (72), and a piston rod (74) connected to the piston (73).
4. The lithium battery with long cycle life as claimed in claim 1, wherein the disconnecting assembly (8) comprises a guide rod (81) slidably disposed on the sleeve (5), a spring (82) sleeved on the guide rod (81), a conductive plate (83) connected to one side of the guide rod (81), an insulating rod (84) slidably disposed on the sleeve (5) and connected to the conductive plate (81), and a chute (85) formed at one end of the insulating rod (84), wherein the guide rod (81) is provided with an insulating sheet (86) and connected to the spring (82), and the conductive plate (83) is matched with the conductive post (61) and the connecting plate (62).
5. A long-cycle-life lithium battery as claimed in claim 1, characterized in that said alarm assembly (9) comprises a contact rod (91) slidably disposed on the piston rod (74), a controller (92) and an alarm (93) disposed on the base (2), a spring a (94) connected to the lower end of the contact rod (91), said contact rod (91) being coupled to the controller (92) by an electric signal, and said controller (92) being coupled to the alarm (93) by an electric signal.
6. A long-cycle-life lithium battery according to claim 1, wherein the covering assembly (10) comprises an air bag (101) wrapped around the battery body (3), an air tube (102) connecting the air bag (101) and the cylinder (72), and a covering layer (103) covering the outside of the air bag (101), the covering layer (103) being made of a thermally conductive material and an inelastic material.
7. A long-cycle-life lithium battery as claimed in claim 1, characterized in that the heat sink assembly (11) comprises a heat conducting fin (111) extending through the base (2), one end of the heat conducting fin (111) abutting against the outer wall of the cover layer (103).
8. A long cycle life lithium battery as claimed in claim 2, wherein the connecting tab (62), the conductive post (62) and the conductive tab (83) are made of copper.
9. A long-cycle-life lithium battery as claimed in claim 3, characterized in that the piston rod (74) is provided with an arc-shaped end and cooperates with the inclined groove (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210603239.2A CN115133161A (en) | 2022-05-31 | 2022-05-31 | Lithium battery with long cycle life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210603239.2A CN115133161A (en) | 2022-05-31 | 2022-05-31 | Lithium battery with long cycle life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115133161A true CN115133161A (en) | 2022-09-30 |
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ID=83378022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210603239.2A Pending CN115133161A (en) | 2022-05-31 | 2022-05-31 | Lithium battery with long cycle life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115133161A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115642291A (en) * | 2022-10-09 | 2023-01-24 | 甄健新 | Intelligent lithium battery |
| CN116913061A (en) * | 2023-09-12 | 2023-10-20 | 合肥优晟电力科技有限公司 | Battery bulge monitoring and alarming device and alarming method |
-
2022
- 2022-05-31 CN CN202210603239.2A patent/CN115133161A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115642291A (en) * | 2022-10-09 | 2023-01-24 | 甄健新 | Intelligent lithium battery |
| CN115642291B (en) * | 2022-10-09 | 2023-08-04 | 北京蓄力赛新能源科技有限公司 | Intelligent lithium battery |
| CN116913061A (en) * | 2023-09-12 | 2023-10-20 | 合肥优晟电力科技有限公司 | Battery bulge monitoring and alarming device and alarming method |
| CN116913061B (en) * | 2023-09-12 | 2023-12-12 | 合肥优晟电力科技有限公司 | Battery bulge monitoring and alarming device and alarming method |
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