CN216779695U - Slot position floating liquid treatment device of cylindrical lithium ion battery - Google Patents
Slot position floating liquid treatment device of cylindrical lithium ion battery Download PDFInfo
- Publication number
- CN216779695U CN216779695U CN202121063950.0U CN202121063950U CN216779695U CN 216779695 U CN216779695 U CN 216779695U CN 202121063950 U CN202121063950 U CN 202121063950U CN 216779695 U CN216779695 U CN 216779695U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- steel shell
- floating liquid
- supporting
- horizontal
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses a slot position floating liquid treatment device of a cylindrical lithium ion battery, which comprises a device bottom surface, a device side surface, a device middle part and a device head part and is an unsealed rotating body. The bottom surface of the device comprises a supporting boss and a horizontal absorption surface which are staggered in a gap, and the supporting boss is contacted with the horizontal surface of the inner wall of the electric core groove position when the floating liquid treatment device moves downwards; the horizontal absorption surface is of a porous structure and is arranged above the horizontal surface of the inner wall of the electric core slot. The side surface of the device is of a thin-wall porous structure and provides a negative pressure channel for absorbing electrolyte on the vertical surface of the inner wall of the steel shell groove. The middle part of the device is a hollow cylinder, so that a positive lug placing space is provided, and the positive lug is prevented from being damaged by contact. The bottom surface, the side surface and the middle part of the device are connected by the head part of the device to form a semi-closed vacuum absorption channel, and the semi-closed vacuum absorption channel is connected with an external pipeline and then used as a negative pressure inlet to provide negative pressure for treating electrolyte floating liquid for the device.
Description
Technical Field
The utility model relates to the field of battery manufacturing, in particular to a slot position floating liquid treatment device of a cylindrical lithium ion battery.
Background
The cylinder electricity core is annotated the liquid back, the remaining electrolyte of box hat trench inner wall does not ooze and rolls up inside the core, in the stage of closing the block, block and box hat inner wall can inseparable extrusion contact, the regional electrolyte of trench has the part to be extruded to box hat top and block cap surface in extrusion process, this part electrolyte can shift to the inside electrolyte crystal that forms of capper die at electric core sealing in-process, lead to sealing in-process electricity core head and produce wearing and tearing, the electrolyte crystal that remains at the box hat head is along with time lapse, can take place chemical reaction behind the moisture in the absorption air and produce hydrofluoric acid, phosphoric acid and phosphate, these chemicals can aggravate electric core head and rust in electric core storage process. The traditional treatment method is to volatilize the residual electrolyte by maintaining an equipment end socket or standing, and the scheme has the following problems: the service life of the end socket is short, and the volatilization amount of the electrolyte is uncontrollable in the standing process.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a slot position floating liquid treatment device of a cylindrical lithium ion battery, which can solve the problem that electrolyte remained on the inner wall of a slot position in the liquid injection process affects a battery cell.
The specific implementation scheme of the utility model is as follows: a slot position floating liquid treatment device of a cylindrical lithium ion battery comprises a device bottom surface, a device side surface, a device middle part and a device head part, wherein the device bottom surface comprises a supporting boss and a horizontal absorption surface; the horizontal absorption surface provides a negative pressure channel for cleaning the electrolyte on the horizontal plane of the steel shell groove; the side surface of the device comprises a side surface supporting surface and a vertical absorption surface, wherein the side surface supporting surface is of a thin-wall structure and provides a negative pressure channel of the device; the vertical absorption surface providing device and the steel shell groove negative pressure channel are used for cleaning the electrolyte on the vertical surface of the steel shell groove; the middle part of the device comprises a middle part supporting surface and a cylindrical hollow part, and the middle part supporting surface is of a thin-wall structure and provides a negative pressure channel of the device; the hollow part of the cylinder provides a position for placing a positive lug of the winding core; the head of the device is of a thin-wall structure and provides a negative pressure inlet for a channel in the circumferential direction of the steel shell surrounding groove.
Optionally, the hemispherical supporting bosses are made of the same material as the device main body and are circumferentially arrayed into a plurality of bosses, so that the contact area between the bottom of the device and the horizontal plane of the steel shell groove position is reduced; the height of the supporting boss is 0.5 mm-20 mm; the horizontal absorption surface is arranged above the horizontal plane of the steel shell groove position, and a cylindrical negative pressure channel with the diameter of 0.5-10 mm is hollowed out; the horizontal absorption area array is a plurality of cylindrical negative pressure channels and surrounds the outer area of the bottom of the whole device.
Optionally, the side surface of the device comprises a plurality of vertical absorption channels, the thickness of the thin-wall of the side surface of the device is 0.1-1 mm, and the positions of the vertical absorption channels, which are 0.1-1 mm away from the bottom of the device, are hollowed out to form cylindrical negative pressure channels of 0.3-10 mm; the vertical absorbing channels are distributed around the whole side surface and the bottom area.
Optionally, the middle part of the device comprises a middle part supporting surface and a cylindrical hollow part; the thickness of the thin wall of the supporting surface of the middle part is 0.1-1 mm, the diameter phi of the hollowed part of the cylinder is 0.3-25 mm, and the height is more than 10 mm; the hollow-out part is communicated with the steel shell to provide a storage space for the positive lug.
Optionally, the device is of thin-walled construction.
Drawings
FIG. 1 is a schematic cross-sectional view of a slot-position liquid-floating treatment device and a steel shell of a cylindrical lithium ion battery provided by the utility model;
FIG. 2 is a schematic side perspective view of a slot-position floating liquid treatment device of a cylindrical lithium ion battery provided by the present invention;
FIG. 3 is a schematic bottom perspective view of a slot-position floating liquid treatment device for a cylindrical lithium ion battery according to the present invention;
FIG. 4 is a schematic cross-sectional view of the contact surface between the bottom support boss and the steel shell slot of the device provided by the present invention;
FIG. 5 is a schematic cross-sectional view of the middle portion of the apparatus provided by the present invention.
1-bottom surface of the device; 2-supporting the boss; 3-device side; 4-vertical absorption plane; 5-device middle part; 6-horizontal absorption surface; 7-positive tab; 8-device head; 9-steel shell; 10-steel shell slot position; 11-cylindrical hollowed-out part; 12-a medial support surface; 13-absorption channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The following detailed description of implementations of the utility model refers to specific embodiments.
Referring to fig. 1-5, preferred embodiments of the present invention are shown.
A slot position floating liquid treatment device of a cylindrical lithium ion battery comprises a device bottom surface 1, a device side surface 3, a device middle part 5 and a device head part 8, wherein the device bottom surface 1 comprises a supporting boss 2 and a horizontal absorption surface 6, and a steel shell slot position 10 is used for supporting the slot position floating liquid treatment device in the pressing process of the device; the horizontal absorption surface 6 provides a negative pressure channel for cleaning the electrolyte on the horizontal surface of the steel shell slot position 10; the device side surface 3 comprises a side surface supporting surface and a vertical absorbing surface 4, and the side surface supporting surface is of a thin-wall structure and provides a device negative pressure channel; the vertical absorption surface 4 provides a negative pressure channel between the device and the steel shell slot position 10 and is used for cleaning the electrolyte on the vertical surface of the steel shell slot position 10; the middle part 5 of the device comprises a middle part supporting surface and a cylindrical hollow part, wherein the middle part supporting surface is of a thin-wall structure and provides a negative pressure channel of the device; the hollow part of the cylinder provides a position for placing the positive lug 7 of the winding core; the head 8 of the device is of a thin-wall structure and provides a negative pressure inlet for a channel in the circumferential direction of the ring steel shell groove position 10.
In the above embodiment, the slot floating liquid treatment device of the cylindrical lithium ion battery is a thin-wall integral structure, and comprises a device bottom surface, a device side surface, a device middle part and a device head part; the bottom surface of the device absorbs the residual electrolyte at the horizontal position of the treatment slot; the side surface of the device is used for absorbing residual electrolyte in the vertical direction of the treatment slot position; the middle part of the device is of a hollow structure and provides a storage space for the anode lugs; the head of the device is used for adjusting the size of the negative pressure absorption inlet.
Specifically, the hemispherical supporting bosses 2 are made of the same material as the device main body, and are circumferentially arrayed into a plurality of bosses, so that the contact area between the bottom of the device and the horizontal plane of the steel shell groove position 10 is reduced; the height of the support boss 2 is 0.5 mm-20 mm; the horizontal absorbing surface 6 is arranged above the horizontal plane of the steel shell groove position 10, and a cylindrical negative pressure channel with the diameter of 0.5-10 mm is hollowed out; the horizontal absorbing surface 6 array is a plurality of cylindrical negative pressure channels which surround the outer area of the bottom of the whole device.
The device bottom surface 1 is of a thin-wall structure, a plurality of supporting bosses 2 are distributed on the outer side of the device bottom surface 1 in the circumferential direction, and when the trench floating liquid treatment device of the cylindrical lithium ion battery is contacted with the cell trench, the supporting bosses 2 are contacted with the horizontal plane of the steel shell trench 10 to form a gap between the device bottom surface 1 and the horizontal plane of the trench; a plurality of cylindrical negative pressure channels are distributed on the bottom surface 1 of the device, and the area of a negative pressure outlet is reduced to improve the negative pressure wind speed.
Specifically, the side surface 3 of the device comprises a plurality of vertical absorption channels, the wall thickness of the thin wall of the side surface 3 of the device is 0.1-1 mm, and the vertical absorption channels are hollowed out at positions 0.1-1 mm away from the bottom of the device to form cylindrical negative pressure channels of 0.3-10 mm; the vertical absorbing channels are distributed around the whole side surface and the bottom area.
The side surface 3 of the device is a thin-wall cylinder with the diameter smaller than the inner diameter of the steel shell and is composed of a plurality of cylinder negative pressure channels, and the negative pressure outlet area is reduced to improve the negative pressure wind speed.
Specifically, the device middle part 5 comprises a middle part supporting surface 12 and a cylindrical hollow part 11; the thickness of the thin wall of the supporting surface 12 at the middle part is 0.1-1 mm, the diameter phi of the hollowed-out part of the cylinder is 0.3-25 mm, and the height is more than 10 mm; the hollow-out part is communicated with the steel shell 9 to provide a storage space for the positive lug 7.
The middle part of the device is a hollow cylinder, and when the slot position floating liquid treatment device of the cylindrical lithium ion battery is in contact with the inner wall of the slot position of the battery cell, enough storage space for the positive lug can be provided.
After the cylindrical lithium ion battery is injected, the groove position floating liquid treatment device moves downwards until the supporting lug bosses 2 are contacted with the steel shell groove position 10, and the supporting lug bosses 2 are circumferentially distributed on the bottom surface 1 of the device; the side surface 3 of the device and the inner wall of the steel shell 9 are coaxial; the lithium ion battery positive lug 7 cannot be in contact with the side surface of the cylindrical hollow part 11 in the middle part of the device and the supporting surface 12 in the middle part to cause damage to the positive lug in the process of pressing down and moving the slot position floating liquid treatment device.
After the slot position floating liquid treatment device of the cylindrical lithium ion battery is contacted with the steel shell slot position 10, the head part 8 of the device connects the bottom surface 1 of the device, the side surface 3 of the device and the middle part 5 of the device to form a semi-closed vacuum integrated absorption channel 13 which is connected with an external pipeline and then used as a negative pressure inlet to provide negative pressure for treating electrolyte floating liquid for the device. The electrolyte floating liquid remained on the horizontal surface of the steel shell slot 10 is completely sucked by the horizontal absorption surface 6, and the electrolyte remained on the inner wall of the side surface of the steel shell slot 10 is completely sucked by the vertical absorption surface 4. After the electrolyte is left in the steel shell slot position for treatment, the slot position floating liquid treatment device of the cylindrical lithium ion battery moves upwards to be separated from the steel shell.
Claims (5)
1. A slot position floating liquid treatment device of a cylindrical lithium ion battery comprises a device bottom surface, a device side surface, a device middle part and a device head part, and is characterized in that the device bottom surface comprises a supporting boss and a horizontal absorption surface, and a steel shell slot position is used for supporting the slot position floating liquid treatment device in the pressing process of the device; the horizontal absorption surface provides a negative pressure channel for cleaning the electrolyte on the horizontal plane of the steel shell groove; the side surface of the device comprises a side surface supporting surface and a vertical absorbing surface, and the side surface supporting surface is of a thin-wall structure and provides a negative pressure channel of the device; the vertical absorption surface providing device and the steel shell groove negative pressure channel are used for cleaning the electrolyte on the vertical surface of the steel shell groove; the middle part of the device comprises a middle part supporting surface and a cylindrical hollow part, and the middle part supporting surface is of a thin-wall structure and provides a negative pressure channel of the device; the hollow part of the cylinder provides a position for placing a positive lug of the winding core; the head of the device is of a thin-wall structure and provides a negative pressure inlet for a channel in the circumferential direction of the steel shell surrounding groove.
2. The slot floating liquid treatment device of the cylindrical lithium ion battery according to claim 1, wherein the hemispherical supporting bosses are made of the same material as the device body, and are circumferentially arrayed into a plurality of bosses, so that the contact area between the bottom of the device and the horizontal plane of the steel shell slot is reduced; the height of the supporting boss is 0.5 mm-20 mm; the horizontal absorption surface is arranged above the horizontal plane of the steel shell groove position, and a cylindrical negative pressure channel with the diameter of 0.5-10 mm is hollowed out; the horizontal absorption area array is a plurality of cylinder negative pressure channels and surrounds the outer side area of the bottom of the whole device.
3. The device for treating the slot position floating liquid of the cylindrical lithium ion battery according to claim 1, wherein the side surface of the device comprises a plurality of vertical absorption channels, the thickness of the thin wall of the side surface of the device is 0.1-1 mm, and the positions of the vertical absorption channels, which are 0.1-1 mm away from the bottom of the device, are hollowed with cylindrical negative pressure channels of 0.3-10 mm; the vertical absorbing channels are distributed around the whole side surface and the bottom area.
4. The device for treating the slot floating liquid of the cylindrical lithium ion battery according to claim 1, wherein the middle part of the device comprises a middle part supporting surface and a cylindrical hollow part; the thickness of the thin wall of the supporting surface of the middle part is 0.1-1 mm, the diameter phi of the hollowed part of the cylinder is 0.3-25 mm, and the height is more than 10 mm; the hollow-out part is communicated with the steel shell to provide a storage space for the positive lug.
5. The apparatus of claim 1, wherein the apparatus is of a thin-walled construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121063950.0U CN216779695U (en) | 2021-05-18 | 2021-05-18 | Slot position floating liquid treatment device of cylindrical lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121063950.0U CN216779695U (en) | 2021-05-18 | 2021-05-18 | Slot position floating liquid treatment device of cylindrical lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216779695U true CN216779695U (en) | 2022-06-21 |
Family
ID=81999578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121063950.0U Active CN216779695U (en) | 2021-05-18 | 2021-05-18 | Slot position floating liquid treatment device of cylindrical lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216779695U (en) |
-
2021
- 2021-05-18 CN CN202121063950.0U patent/CN216779695U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209183668U (en) | A kind of button cell | |
| CN207517535U (en) | A kind of cylindrical lithium ion capacitor | |
| CN216779695U (en) | Slot position floating liquid treatment device of cylindrical lithium ion battery | |
| CN202585550U (en) | Flexibly packaged lithium ion battery | |
| CN209843826U (en) | Cylindrical battery | |
| CN202434661U (en) | Lithium battery and winding type cell structure thereof | |
| WO2024037533A1 (en) | Plate, battery and electric apparatus | |
| CN107546420A (en) | winding type battery cell | |
| CN113036267A (en) | Crust lithium ion battery structure | |
| CN216624338U (en) | Negative pole current collecting disc structure of all-lug cylindrical battery and battery | |
| CN100452518C (en) | Prismatic battery and method for manufacturing the same | |
| CN216120411U (en) | Exhaust device for battery formation and formation system | |
| CN201421861Y (en) | High magnification quick charging and discharging soft packed lithium secondary battery | |
| CN101984515B (en) | Winding die and assembling method of low-capacity secondary battery | |
| CN114709463A (en) | Square winding battery structure and production method | |
| CN211404530U (en) | Cylindrical battery cell shell sealing structure and battery cell | |
| CN109088126B (en) | High-capacity battery cell and energy storage device | |
| CN109786843B (en) | High-rate needle type lithium ion battery | |
| CN206471430U (en) | A kind of battery secondary sealing mould | |
| CN208923206U (en) | Lithium ion battery hard shell encapsulating structure | |
| CN112820882A (en) | Negative plate, battery and preparation method | |
| CN219739097U (en) | Battery cell top cover, battery cell and power utilization device | |
| CN221057532U (en) | Lithium ion battery shell structure | |
| CN201478391U (en) | Nickel-metal hydride high-capacity cylindrical battery | |
| CN210245659U (en) | Soft package lithium ion battery cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |