CN117117400A - Electrochemical energy storage device and manufacturing method - Google Patents
Electrochemical energy storage device and manufacturing method Download PDFInfo
- Publication number
- CN117117400A CN117117400A CN202311206412.6A CN202311206412A CN117117400A CN 117117400 A CN117117400 A CN 117117400A CN 202311206412 A CN202311206412 A CN 202311206412A CN 117117400 A CN117117400 A CN 117117400A
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- Prior art keywords
- supporting cylinder
- cover
- shell
- rubber film
- energy storage
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- 238000012983 electrochemical energy storage Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 239000003792 electrolyte Substances 0.000 claims abstract description 35
- 239000000110 cooling liquid Substances 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims description 36
- 239000011324 bead Substances 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000007667 floating Methods 0.000 claims description 2
- 230000005518 electrochemistry Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 17
- 239000002390 adhesive tape Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/14—Primary casings; Jackets or wrappings for protecting against damage caused by external factors
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
-
- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses an electrochemical energy storage device and a manufacturing method thereof, and relates to the technical field of electrochemistry. The device comprises a shell, wherein one end of the shell is an open end, and a sealing cover is fixedly arranged on the open end; the support cylinder is arranged in the shell, and the battery cell is arranged in the support cylinder; the bottom end and the top end of the supporting cylinder are respectively fixedly provided with a bottom cover and a top cover, and the inner wall of the supporting cylinder, the bottom cover and the top cover are respectively provided with a side rubber film, a bottom rubber film and a top rubber film; the inner side of the top cover is fixedly provided with a fixed pipe communicated with the outside; electrolyte is filled between the supporting cylinder and the battery cell, and cooling liquid is filled between the shell and the supporting cylinder. When the battery core is required to be replaced, the battery core can be replaced by opening the sealing cover, pouring out the cooling liquid, guiding out the electrolyte through the fixing pipe, preventing the electrolyte from expanding, separating the side rubber film from the inner wall of the shell, easily taking out the supporting cylinder and opening the top cover.
Description
Technical Field
The invention belongs to the technical field of electrochemistry, and particularly relates to an electrochemical energy storage device and a manufacturing method thereof.
Background
The existing electrochemical energy storage device such as a secondary battery has the problems that if frequent collision and drop occur in the use process, the battery core moves in the packaging shell to a certain extent, the bottom of the battery core collides with the packaging shell, and after multiple collisions and drops, the battery core damages the packaging shell to a certain extent, and the damage of the packaging shell is caused, so that the possibility of electrolyte leakage occurs greatly in the disassembly process.
In the prior art, the problems of liquid leakage, top sealing, flushing and the like are solved by wrapping the adhesive tape between the shell and the battery cell, but when the battery cell needs to be replaced by adopting the method, the adhesive tape can increase the friction force between the shell and the battery cell, so that the resistance is increased when the battery is dismounted, the dismounting process is more difficult, more force is needed to overcome the resistance, or a tool is used for assisting the dismounting; and the adhesive tape generally has higher adhesiveness and is easy to bond the battery shell and the battery cell together, so that the adhesive tape can be stuck on the shell or the battery cell during disassembly, the separation becomes more difficult, the replacement is inconvenient, and the risk of electrolyte leakage exists.
Disclosure of Invention
In order to overcome the disadvantages of the prior art, the present invention is directed to an electrochemical energy storage device and a manufacturing method thereof, which can solve the technical problem that a battery adopting an adhesive tape wrapping mode is difficult to disassemble.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the invention provides an electrochemical energy storage device, which comprises a shell, wherein one end of the shell is an open end, and a sealing cover is fixedly arranged on the open end; a supporting cylinder is arranged in the shell, and an electric core is arranged in the supporting cylinder; the bottom end and the top end of the supporting cylinder are respectively and fixedly provided with a bottom cover and a top cover, and the inner wall of the supporting cylinder, the bottom cover and the top cover are respectively provided with a side rubber film, a bottom rubber film and a top rubber film; the inner side of the top cover is fixedly provided with a fixed pipe communicated with the outside; electrolyte is filled between the supporting cylinder and the battery cell, and cooling liquid is filled between the shell and the supporting cylinder.
In the concrete implementation process, a plurality of rectangular openings are formed in the outer surface of the circumference of the supporting cylinder in an equidistant penetrating mode, and the side rubber film is fixedly arranged on the inner wall of the rectangular opening.
In the specific implementation process, a plurality of arc grooves are uniformly formed in the bottom circumference direction of the bottom cover in a penetrating manner, and the bottom rubber film is fixedly arranged on the inner wall of the arc groove.
In a specific implementation process, a plurality of supporting plates are uniformly and fixedly arranged along the circumferential direction of the inner wall of the bottom cover, and gong-shaped elastic sheets are fixedly arranged on a plane formed by the upper surfaces of the supporting plates.
In the specific implementation process, one end of the fixed pipe connected with the inner side of the top cover is of a conical pipeline structure; and a limiting ring is fixedly arranged on the inner wall of the other end of the fixed pipe.
In the specific implementation process, the inside activity of fixed pipe is provided with the top pearl, the surface mounting of top pearl is provided with the top spring, the top spring sets up between top pearl and spacing ring.
In the concrete implementation process, the one end fixed mounting of electricity core has the utmost point ear, the top of top cap runs through the top cap through-hole of offering the utmost point ear to stretch out, a plurality of arc openings have been run through to top circumferencial direction equidistance of top cap, the fixed setting of top rubber membrane is on arc open-ended inner wall.
In the specific implementation process, the top cover is fixedly provided with a first sealing ring close to the inner side of the top cover through hole.
In the specific implementation process, a through hole for extending out of the lug is formed in the outer surface of the sealing cover in a penetrating mode, and a second sealing ring is fixedly arranged on the inner side, close to the through hole, of the sealing cover.
The invention also provides a manufacturing method of the electrochemical energy storage device, which is based on any one of the electrochemical energy storage devices and comprises the following steps:
s1: the battery cell is arranged in the supporting cylinder, and the top cover is fixedly arranged at the top end of the supporting cylinder;
s2: the whole supporting cylinder is placed in the shell, electrolyte is injected into the supporting cylinder through the fixing pipe, and the injected electrolyte can prop open the side rubber film, the bottom rubber film and the top rubber film;
s3: and pouring cooling liquid into the shell to wrap the supporting cylinder, covering the sealing cover of the shell and fixedly installing the supporting cylinder, and floating the supporting cylinder at the middle part of the shell through the side rubber film, the bottom rubber film and the top rubber film.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an electrochemical energy storage device, which comprises a shell, a sealing cover, a battery cell, a supporting cylinder, a side rubber film, a bottom cover, a bottom rubber film, a top cover and a top rubber film, wherein the shell is arranged on the top cover; when the battery cell needs to be replaced, the device only needs to open the sealing cover, pour out the cooling liquid, and lead out the electrolyte through the fixed pipe, so that the electrolyte does not swell the side rubber film, the bottom rubber film and the top rubber film any more, the side rubber film is separated from the inner wall of the shell, the supporting cylinder can be easily taken out, and the battery cell can be replaced by opening the top cover.
Further, the support cylinder is floatingly arranged in the middle of the shell through the side rubber film, the bottom rubber film and the top rubber film, and the side rubber film, the bottom rubber film and the top rubber film have certain elasticity, so that the side rubber film, the bottom rubber film and the top rubber film can buffer vibration received by the support cylinder once when the shell is collided, and damage to an electric core arranged in the support cylinder is avoided.
Further, through filling electrolyte in the support cylinder, the electrolyte can carry out secondary buffering to the vibrations that the electric core received, further improves the safety protection effect of electric core, avoids the electric core to receive the striking and takes place to damage.
Drawings
FIG. 1 is a schematic diagram of an electrochemical energy storage device according to the present invention;
FIG. 2 is a schematic diagram illustrating a split state structure of an electrochemical energy storage device according to the present invention;
FIG. 3 is a schematic cross-sectional view of a support cylinder of an electrochemical energy storage device according to the present invention;
FIG. 4 is a schematic view of a supporting cylinder of an electrochemical energy storage device according to the present invention;
FIG. 5 is a schematic cross-sectional view of a bottom cover of an electrochemical energy storage device according to the present invention;
fig. 6 is a schematic diagram of a top cover structure of an electrochemical energy storage device according to the present invention;
fig. 7 is a schematic cross-sectional view of a fixing tube of an electrochemical energy storage device according to the present invention.
In the figure: 1-a housing; 2-sealing cover; 3-an electric core; 4-electrode lugs; 5-a second sealing ring; 6-supporting a cylinder; 7-rectangular openings; 8-side rubber film; 9-a bottom cover; 10-arc grooves; 11-a bottom rubber film; 12-supporting plates; 13-gong-shaped spring plates; 14-top cover; 15-arc opening; 16-top rubber film; 17-fixing the tube; 18-top beads; 19-pushing springs; 20-limiting rings; 21-a first sealing ring.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention provides an electrochemical energy storage device, which comprises a shell 1, a sealing cover 2, a battery cell 3, a supporting cylinder 6, a side rubber membrane 8, a bottom cover 9, a bottom rubber membrane 11, a top cover 14 and a top rubber membrane 16;
one end of the shell 1 is an open end, and the sealing cover 2 is fixedly arranged on the open end; the support cylinder 6 is arranged in the shell 1, and the battery cell 3 is arranged in the support cylinder 6; the bottom cover 9 and the top cover 14 are respectively and fixedly arranged at the bottom end and the top end of the supporting cylinder 6, and the side rubber film 8, the bottom rubber film 11 and the top rubber film 16 are respectively arranged on the inner wall of the supporting cylinder 6, the bottom cover 9 and the top cover 14; the fixing tube 17 is fixedly provided inside the top cover 14 and communicates with the outside.
Further, an electrolyte is filled between the support tube 6 and the battery cell 3, and a coolant is filled between the housing 1 and the support tube 6.
The manufacturing method of the electrochemical energy storage device comprises the following steps:
s1: the battery cell 3 is arranged in the supporting cylinder 6, and the top cover 14 is fixedly arranged at the top end of the supporting cylinder 6;
s2: the whole supporting cylinder 6 is placed in the shell 1, electrolyte is injected into the supporting cylinder 6 through the fixed pipe 17, so that the injected electrolyte can prop open the side rubber membrane 8, the bottom rubber membrane 11 and the top rubber membrane 16;
s3: the shell 1 is filled with cooling liquid, so that the cooling liquid wraps the supporting cylinder 6, the sealing cover 2 of the shell 1 is covered and fixedly installed, and the supporting cylinder 6 is floatingly installed in the middle of the shell 1 through the side rubber film 8, the bottom rubber film 11 and the top rubber film 16.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1 and 2, the invention provides an electrochemical energy storage device, which comprises a housing 1 and a battery cell 3, wherein a lug 4 is fixedly arranged at one end of the battery cell 3, one end of the housing 1 is of an opening structure, a sealing cover 2 is fixedly arranged at the opening end, a through hole for the lug 4 to extend out is formed in the outer surface of the sealing cover 2 in a penetrating manner, a second sealing ring 5 is fixedly arranged at the inner side, close to the through hole, of the sealing cover 2, and the second sealing ring 5 is used for sealing the through hole in the sealing cover 2 and preventing cooling liquid in the housing 1 from overflowing.
As shown in fig. 3 and 4, the support cylinder 6 is installed inside the casing 1, the battery cell 3 is installed in the support cylinder 6, the bottom end of the support cylinder 6 is fixedly installed with the bottom cover 9, the top end of the support cylinder 6 is fixedly installed with the top cover 14, and the inner side of the top cover 14 close to the through hole of the top cover is fixedly installed with the first sealing ring 21.
A plurality of rectangular openings 7 are formed in the equidistant running through of the outer surface of the circumference of the supporting cylinder 6, side rubber films 8 are fixedly mounted on the inner wall of each rectangular opening 7, electrolyte is filled between the supporting cylinder 6 and the battery cell 3, and cooling liquid is filled between the shell 1 and the supporting cylinder 6.
As shown in fig. 5, a plurality of arc grooves 10 are uniformly formed in the bottom circumferential direction of the bottom cover 9 in a penetrating manner, a bottom rubber film 11 is fixedly mounted on the inner wall of each arc groove 10, a plurality of support plates 12 are uniformly and fixedly mounted on the circumferential direction of the inner wall of the bottom cover 9, and gong-shaped elastic sheets 13 are fixedly mounted on a plane formed by the upper surfaces of the plurality of support plates 12.
As shown in fig. 6, the top of the top cover 14 is provided with through holes for extending the tabs 4, the top circumferential direction of the top cover 14 is provided with a plurality of arc openings 15 in an equidistant manner, the inner wall of each arc opening 15 is fixedly provided with a top rubber film 16, and the inner side of the top cover 14 is fixedly provided with a fixed pipe 17 communicated with the outside.
As shown in fig. 7, one end of the fixed tube 17 connected with the inner side of the top cover 14 is of a conical pipeline structure, a limiting ring 20 is fixedly mounted on the inner wall of the other end of the fixed tube 17, a top bead 18 is movably mounted in the fixed tube 17, a top spring 19 is fixedly mounted on the outer surface of the top bead 18, and the top spring 19 is arranged between the top bead 18 and the limiting ring 20.
In use, the top bead 18 is pushed to the inside of the fixed tube 17 through the electrolyte injection pipeline, so that the top bead 18 opens the inlet of the fixed tube 17 to inject the electrolyte into the support cylinder 6 through the fixed tube 17; after the pipeline is pulled out, the top bead 18 is reset under the action of the elasticity of the top spring 19, and props against the inner wall of the conical pipeline of the fixed pipe 17 to seal the inlet of the fixed pipe 17, so that the electrolyte is prevented from leaking.
The manufacturing method of the device is as follows:
s1: the battery cell 3 is arranged in the supporting cylinder 6, the bottom end of the battery cell 3 is propped against the gong-shaped elastic sheet 13 arranged on the inner side of the bottom cover 9, the electrode lug 4 of the battery cell 3 extends out of the top cover 14, and the top cover 14 is fixedly arranged on the top end of the supporting cylinder 6;
s2: after the battery cell 3 and the top cover 14 are installed, the supporting cylinder 6 is integrally placed in the shell 1, electrolyte is injected into the supporting cylinder 6 through the fixed pipe 17, and the injected electrolyte can prop open the side rubber membrane 8, the bottom rubber membrane 11 and the top rubber membrane 16;
s3: the shell 1 is filled with cooling liquid, so that the cooling liquid wraps the supporting cylinder 6, the sealing cover 2 of the shell 1 is covered and fixedly installed, and the side rubber film 8, the bottom rubber film 11 and the top rubber film 16 float-install the supporting cylinder 6 in the middle of the shell 1.
From the above description, it can be seen that the above device and the manufacturing method thereof achieve the following technical effects: when the battery cell 3 is used, the battery cell 3 is arranged in the supporting cylinder 6, the bottom end of the battery cell 3 is propped against the gong-shaped elastic sheet 13 arranged on the inner side of the bottom cover 9, the lug 4 of the battery cell 3 extends out of the top cover 14, the top cover 14 is fixedly arranged on the top end of the supporting cylinder 6, the first sealing ring 21 fixedly arranged on the inner side of the top cover 14 is propped against the top end of the battery cell 3, the first sealing ring 21 can seal a through hole formed in the top cover 14, and meanwhile, the two ends of the battery cell 3 can be limited under the cooperation of the gong-shaped elastic sheet 13;
after the battery cell 3 and the top cover 14 are installed, the supporting cylinder 6 is integrally placed in the shell 1, electrolyte is injected into the supporting cylinder 6 through the fixing pipe 17, the injected electrolyte can prop open the side rubber membrane 8, the bottom rubber membrane 11 and the top rubber membrane 16, the side rubber membrane 8 and the bottom rubber membrane 11 integrally prop the supporting cylinder 6 in the shell 1, after a certain amount of electrolyte is filled, the sealing cover 2 of the shell 1 is covered and fixedly installed, the top rubber membrane 16 can prop against the inner side of the sealing cover 2, the supporting cylinder 6 is floatingly installed in the middle of the shell 1 through the side rubber membrane 8, the bottom rubber membrane 11 and the top rubber membrane 16, and the side rubber membrane 8, the bottom rubber membrane 11 and the top rubber membrane 16 have certain elasticity, so that the side rubber membrane 8, the bottom rubber membrane 11 and the top rubber membrane 16 can buffer vibration received by the supporting cylinder 6 once when the shell 1 is collided, and damage to the battery cell 3 installed in the supporting cylinder 6 is avoided; meanwhile, as the electrolyte is filled in the supporting cylinder 6, the electrolyte can buffer the vibration received by the battery cell 3 for the second time, so that the safety protection effect of the battery cell 3 is further improved, and the battery cell 3 is prevented from being damaged due to impact;
before the sealing cover 2 is covered, cooling liquid is filled into the outer shell 1, so that the cooling liquid wraps the supporting cylinder 6, heat generated in the using process of the battery cell 3 is rapidly dissipated by the cooling liquid, explosion of the battery cell 3 caused by overhigh temperature is prevented, and meanwhile, the injected cooling liquid can also have a certain damping effect on the supporting cylinder 6;
when the battery cell 3 needs to be replaced, the supporting cylinder 6 can be easily taken out only by opening the sealing cover 2, pouring out the cooling liquid and leading out the electrolyte through the fixing pipe 17, so that the electrolyte does not swell the side rubber membrane 8, the bottom rubber membrane 11 and the top rubber membrane 16 any more, the side rubber membrane 8 is separated from the inner wall of the shell 1, and the battery cell 3 can be replaced by opening the top cover 14.
Examples
The embodiment provides an electrochemical energy storage device, which comprises a shell 1, a sealing cover 2, a battery cell 3, a pole lug 4, a second sealing ring 5, a supporting cylinder 6, a rectangular opening 7, a side rubber film 8, a bottom cover 9, an arc-shaped groove 10, a bottom rubber film 11, a supporting plate 12, a gong-shaped elastic sheet 13, a top cover 14, an arc-shaped opening 15, a top rubber film 16, a fixed pipe 17, a top bead 18, a top spring 19, a limiting ring 20 and a first sealing ring 21.
The tab 4 is fixedly installed at one end of the battery cell 3, one end of the shell 1 is an open end, the sealing cover 2 is fixedly installed on the open end, a through hole for the tab 4 to extend out is formed in the outer surface of the sealing cover 2 in a penetrating mode, and a second sealing ring 5 is fixedly arranged on the inner side, close to the through hole, of the sealing cover 2.
The support cylinder 6 is arranged in the shell 1, and the battery cell 3 is arranged in the support cylinder 6; the bottom cover 9 and the top cover 14 are respectively and fixedly installed at the bottom end and the top end of the supporting cylinder 6, and the side rubber film 8, the bottom rubber film 11 and the top rubber film 16 are respectively arranged on the inner wall of the supporting cylinder 6, the bottom cover 9 and the top cover 14.
The side rubber film 8 is fixedly arranged on the inner walls of a plurality of rectangular openings 7 which are formed in an equidistant penetrating way on the outer surface of the circumference of the supporting cylinder 6; the bottom rubber film 11 is fixedly arranged on the inner walls of a plurality of arc grooves 10 which are uniformly penetrated and opened along the circumferential direction of the bottom cover 9; the top rubber film 16 is fixedly arranged on the inner walls of a plurality of arc openings 15 penetrating through the top circumference direction of the top cover 14 at equal intervals.
The top of top cap 14 runs through and has offered the top cap through-hole that supplies tab 4 to stretch out, and first sealing ring 21 is fixed to be set up in the inboard that top cap 14 is close to the top cap through-hole.
A plurality of support plates 12 are uniformly and fixedly arranged along the circumferential direction of the inner wall of the bottom cover 9, and gong-shaped elastic sheets 13 are fixedly arranged on a plane formed by the upper surfaces of the support plates 12.
The fixing tube 17 is fixedly provided inside the top cover 14 and communicates with the outside. One end of the fixed pipe 17 connected with the inner side of the top cover 14 is of a conical pipeline structure, the limiting ring 20 is fixedly arranged on the inner wall of the other end of the fixed pipe 17, the top bead 18 is movably arranged in the fixed pipe 17, the top spring 19 is fixedly arranged on the outer surface of the top bead 18, and the top spring 19 is arranged between the top bead 18 and the limiting ring 20.
The specific steps of the manufacturing method based on the device of the present embodiment are as follows:
step one: the battery cell 3 is arranged in the supporting cylinder 6, the bottom end of the battery cell 3 is propped against the gong-shaped elastic sheet 13 arranged on the inner side of the bottom cover 9, the electrode lug 4 of the battery cell 3 extends out of the top cover 14, and the top cover 14 is fixedly arranged on the top end of the supporting cylinder 6;
step two: after the battery cell 3 and the top cover 14 are installed, the supporting cylinder 6 is integrally placed in the shell 1, electrolyte is injected into the supporting cylinder 6 through the fixed pipe 17, the top bead 18 is pushed into the fixed pipe 17 through the electrolyte injection pipeline, and the top bead 18 opens the inlet of the fixed pipe 17 so as to inject the electrolyte into the supporting cylinder 6 through the fixed pipe 17; after the pipeline is pulled out, the top bead 18 is reset under the action of the elasticity of the top spring 19, and props against the inner wall of the conical pipeline of the fixed pipe 17 to seal the inlet of the fixed pipe 17; allowing the injected electrolyte to spread the side rubber membrane 8, the bottom rubber membrane 11 and the top rubber membrane 16;
step three: the shell 1 is filled with cooling liquid, so that the cooling liquid wraps the supporting cylinder 6, the sealing cover 2 of the shell 1 is covered and fixedly installed, and the side rubber film 8, the bottom rubber film 11 and the top rubber film 16 float-install the supporting cylinder 6 in the middle of the shell 1.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. An electrochemical energy storage device is characterized by comprising a shell (1), wherein one end of the shell (1) is an open end, and a sealing cover (2) is fixedly arranged on the open end; a supporting cylinder (6) is arranged in the shell (1), and an electric core (3) is arranged in the supporting cylinder (6); the bottom end and the top end of the supporting cylinder (6) are respectively and fixedly provided with a bottom cover (9) and a top cover (14), and the inner wall of the supporting cylinder (6), the bottom cover (9) and the top cover (14) are respectively provided with a side rubber film (8), a bottom rubber film (11) and a top rubber film (16); a fixed pipe (17) communicated with the outside is fixedly arranged on the inner side of the top cover (14); electrolyte is filled between the supporting cylinder (6) and the battery cell (3), and cooling liquid is filled between the shell (1) and the supporting cylinder (6).
2. Electrochemical energy storage device according to claim 1, characterized in that the outer surface of the circumference of the support cylinder (6) is equidistantly perforated with a plurality of rectangular openings (7), and the side rubber membrane (8) is fixedly arranged on the inner wall of the rectangular opening (7).
3. Electrochemical energy storage device according to claim 1, characterized in that a plurality of arc grooves (10) are evenly perforated along the bottom circumference direction of the bottom cover (9), and the bottom rubber film (11) is fixedly arranged on the inner wall of the arc grooves (10).
4. Electrochemical energy storage device according to claim 1, characterized in that a plurality of support plates (12) are uniformly and fixedly arranged along the circumferential direction of the inner wall of the bottom cover (9), and gong-shaped elastic sheets (13) are fixedly arranged on a plane formed by the upper surfaces of the plurality of support plates (12).
5. Electrochemical energy storage device according to claim 1, characterized in that the end of the fixing tube (17) connected to the inside of the top cover (14) is of conical pipe structure; and a limiting ring (20) is fixedly arranged on the inner wall of the other end of the fixed pipe (17).
6. Electrochemical energy storage device according to claim 5, characterized in that the inside of the fixed tube (17) is movably provided with a top bead (18), the outer surface of the top bead (18) is fixedly provided with a top spring (19), and the top spring (19) is arranged between the top bead (18) and a limiting ring (20).
7. The electrochemical energy storage device according to claim 1, wherein one end of the battery core (3) is fixedly provided with a tab (4), a top cover through hole for the tab (4) to extend out is formed in the top of the top cover (14), a plurality of arc openings (15) are formed in the top circumferential direction of the top cover (14) in an equidistant penetrating manner, and the top rubber film (16) is fixedly arranged on the inner wall of the arc openings (15).
8. Electrochemical energy storage device according to claim 7, characterized in that the top cover (14) is fixedly provided with a first sealing ring (21) close to the inner side of the top cover through hole.
9. Electrochemical energy storage device according to claim 7, characterized in that the outer surface of the sealing cover (2) is provided with a through hole through which the tab (4) extends, and the inner side of the sealing cover (2) close to the through hole is fixedly provided with a second sealing ring (5).
10. A method of manufacturing an electrochemical energy storage device according to any one of claims 1 to 9, characterized in that it comprises the steps of:
s1: the battery cell (3) is arranged in the supporting cylinder (6), and the top cover (14) is fixedly arranged at the top end of the supporting cylinder (6);
s2: the supporting cylinder (6) is integrally placed in the shell (1), electrolyte is injected into the supporting cylinder (6) through the fixed pipe (17), and the injected electrolyte can prop open the side rubber membrane (8), the bottom rubber membrane (11) and the top rubber membrane (16);
s3: and (3) pouring cooling liquid into the shell (1), enabling the cooling liquid to wrap the supporting cylinder (6), covering the sealing cover (2) of the shell (1) and fixedly installing the supporting cylinder (6) in the middle of the shell (1) in a floating mode through the side rubber film (8), the bottom rubber film (11) and the top rubber film (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311206412.6A CN117117400A (en) | 2023-09-18 | 2023-09-18 | Electrochemical energy storage device and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311206412.6A CN117117400A (en) | 2023-09-18 | 2023-09-18 | Electrochemical energy storage device and manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117117400A true CN117117400A (en) | 2023-11-24 |
Family
ID=88807598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311206412.6A Pending CN117117400A (en) | 2023-09-18 | 2023-09-18 | Electrochemical energy storage device and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117117400A (en) |
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2023
- 2023-09-18 CN CN202311206412.6A patent/CN117117400A/en active Pending
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