CN115332639A - Lithium battery production method - Google Patents
Lithium battery production method Download PDFInfo
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- CN115332639A CN115332639A CN202210073573.1A CN202210073573A CN115332639A CN 115332639 A CN115332639 A CN 115332639A CN 202210073573 A CN202210073573 A CN 202210073573A CN 115332639 A CN115332639 A CN 115332639A
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- pipe
- output unit
- steel shell
- notch
- limiting part
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000004020 conductor Substances 0.000 claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000002985 plastic film Substances 0.000 claims abstract description 8
- 229920006255 plastic film Polymers 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 101100230509 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) hat-1 gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- 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
- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a lithium battery production method, which comprises the following steps: a1, intercepting a pipe with a set length; step A2, grooving one end of the pipe to form a notch and a fan-shaped process groove communicated with the notch; step A3, sealing the other end of the pipe to form a first limiting part; step A4, assembling all parts except the negative output unit in the battery pack to form an assembly, integrally loading the assembly into a pipe, and embedding the embedding part on the second support into the notch; step A5, fixing the negative output unit to the first conductor mounting plate; step A6, sealing one end of the pipe, which is provided with the process groove, to form a second limiting part and a notch on the second limiting part, wherein the pipe is completely formed into a steel shell; step A7, covering a plastic film on the outer side of the steel shell by adopting a thermal shrinkage process; and step A8, attaching a surface to one end of the steel shell corresponding to the positive electrode output unit. The invention has simple production flow and low cost.
Description
The application is a divisional application of an invention patent with the application number of 2020100799946, 2/2020/4, entitled "a USB rechargeable lithium battery".
Technical Field
The invention relates to the technical field of rechargeable batteries, in particular to a production method of a lithium battery.
Background
The existing rechargeable battery has a single structure, when charging, the battery needs to be placed in a special charging seat, and the charging seat is connected with the charging seat, and the charging seat is special, so that a user is often difficult to find a proper charging device when using the rechargeable battery in an emergency, and a substitute is difficult to find after the charging seat is lost; in addition, the conventional rechargeable battery on the market has a single structure, a complex production flow and high cost.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the lithium battery production method which is simple in charging production flow and low in cost.
The technical scheme is as follows: in order to achieve the above object, the method for producing a lithium battery of the present invention is characterized by comprising the steps of:
a1, intercepting a pipe with a set length;
step A2, grooving at one end of a pipe to form a groove opening and a fan-shaped process groove communicated with the groove opening;
step A3, sealing the other end of the pipe to form a first limiting part;
step A4, assembling all parts except the negative output unit in the battery pack to form an assembly, integrally installing the assembly into the pipe, and enabling the embedded part on the second support to be embedded into the notch;
step A5, fixing the negative output unit to the first conductor mounting plate;
step A6, sealing one end of the pipe, which is provided with the process groove, to form a second limiting part and a notch on the second limiting part, wherein the pipe is completely formed into a steel shell;
step A7, covering a plastic film on the outer side of the steel shell by adopting a thermal shrinkage process;
and A8, attaching a surface paste to one end of the steel shell corresponding to the positive electrode output unit.
Has the beneficial effects that: the lithium battery production method can effectively package the part of the battery pack except the cathode output unit into the steel shell, and simultaneously finish the alignment work of the indicator lamp and the USB charging port, and has the advantages of reasonable flow setting, simple process, low production cost, reliable structure of the produced lithium battery and long service life.
Drawings
Fig. 1 is a first outline view of a USB rechargeable lithium battery;
fig. 2 is a second external view of the USB rechargeable lithium battery;
FIG. 3 is an exploded view of a USB rechargeable lithium battery;
fig. 4 is a first cross-sectional view of a USB rechargeable lithium battery;
FIG. 5 is a second cross-sectional view of a USB rechargeable lithium battery;
FIG. 6 is a structural drawing of the steel shell;
FIG. 7 is a view of the first bracket;
FIG. 8 is a first perspective view of the second frame portion;
FIG. 9 is a second perspective view of the second frame portion;
fig. 10 is a first perspective view of the first conductor mounting plate;
fig. 11 is a second perspective view of the first conductor mounting plate;
fig. 12 is a first perspective view structural view of a second conductor mounting plate;
fig. 13 is a second perspective view structural view of a second conductor mounting plate;
FIG. 14 is a schematic diagram of a negative output conductor;
FIG. 15 is a block diagram of a flexible circuit board;
FIG. 16 is a view showing the structure of a steel pipe having a notch and a process groove.
In the figure: 1-a steel shell; 1-1-a first restriction; 1-2-a second restriction; 1-3-notch; 1-4-notch; 2-electric core; 3-a first scaffold; 3-1-a first nesting portion; 4-a second scaffold; 4-1-a second nesting portion; 4-2-insert; 4-3-a charging port mounting section; 5-USB charging port; 6-indicator light; 7-a positive output unit; 8-a negative output unit; 8-1-a depression; 9-a flexible circuit board; 9-1-connection port; 9-2-a first plug connector; 10-a first conductor mounting plate; 10-1-a first wire chase; 11-a second conductor mounting plate; 11-1-boss portion; 11-2-a second wire chase; 12-a first output conductor; 13-a second output conductor; 14-a screw; 15-plastic film; 16-surface paste; 17-a second plug connector; 18-third plug connector.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, wherein the dimensions and proportions of the various elements in the drawings are not intended to represent actual design dimensions and proportions of the product.
The USB rechargeable lithium battery shown in fig. 1-5 includes a steel shell 1 and a battery module, wherein the outer side of the steel shell 1 is covered with a plastic film 15, and two ends of the plastic film 15 are provided with inward extending portions which extend inward and cover the first limiting portion 1-1 and the second limiting portion 1-2. The cell subassembly includes that electric core 2, first support 3, second support 4, USB charge mouthful 5, pilot lamp 6, anodal output unit 7, negative pole output unit 8 and flexible circuit board 9, and in the cell subassembly, except negative pole output unit 8, all parts are all installed in the box hat 1. Wherein:
as shown in fig. 6, the steel shell 1 is a hollow cylinder, one end of the steel shell is provided with a first limiting part 1-1, the other end of the steel shell is provided with a second limiting part 1-2, the first limiting part 1-1 and the second limiting part 1-2 are both annular, the first limiting part 1-1 and the second limiting part 1-2 are used for limiting the electric core assembly, so that the electric core assembly cannot fall out of the steel shell 1, and the steel shell 1 is an integrally formed piece which is stable in structure and good in protection; a notch 1-3 is formed in the side wall of the steel shell 1, which is close to one side of the second limiting part 1-2, and a notch 1-4 communicated with the notch 1-3 is formed in the second limiting part 1-2;
the positive electrode output unit 7 is connected with the positive electrode of the battery cell 2, the negative electrode output unit 8 is connected with the negative electrode of the battery cell 2, and the positive electrode output unit 7 and the negative electrode output unit 8 are used for outputting electric quantity.
A circle of annular gap is reserved between the outer circumference of the electric core 2 and the inner wall of the steel shell 1, the main body part of the flexible circuit board 9 is arranged in the annular gap, and the main body part is provided with a charge and discharge management circuit; the USB charging port 5 and the indicator lamp 6 are connected with the charging and discharging management circuit, and the charging and discharging management circuit is connected with the positive and negative two stages of the battery core 2; the positive electrode output unit 7 and the negative electrode output unit 8 are also used for establishing connection with the battery core 2. The charging and discharging management circuit can play the functions of charging protection, discharging management, electric quantity statistics and the like, the USB charging port 5 is connected with a power supply and then is charged to the battery cell 2 through the charging and discharging management circuit, the charging and discharging management circuit can count the residual electric quantity condition in the battery cell 2, and the residual electric quantity condition is indicated through the indicator lamp 6.
Specifically, a first bracket 3 and a second bracket 4 are respectively installed at two ends of the battery cell 2, as shown in fig. 7, a first sleeving part 3-1 sleeved at the negative end of the battery cell 2 is formed on the first bracket 3, and the outer edge of the first sleeving part is engaged with and matched with the inner wall of the steel shell 1; as shown in fig. 8-9, a second sleeving part 4-1 sleeved on the positive terminal of the battery cell 2 is formed on the second bracket 4, and the outer edge thereof is fitted with and matched with the inner wall of the steel shell 1, and an embedding part 4-2 embedded in the notch 1-3 is formed thereon; effective radius of the outline of first support 3 and second support 4 all is greater than the effective maximum radius of electric core 2, so can make the periphery of electric core form the annular gap of round holding flexible circuit board 9, flexible circuit board 9 is installed in the annular gap, compare under, traditional PCB board need occupy more space, flexible circuit board 9 that uses in this embodiment sets up the periphery at electric core 2, moreover, the steam generator is compact in structure, be favorable to promoting the utilization ratio of 1 inner space of steel casing, the space of saving can hold the electric core 2 that the volume is bigger, make the lithium cell have bigger electric energy capacity.
The indicating lamp 6 is embedded in the embedded part 4-2, and the outward side of the indicating lamp is in an exposed state, so that the fixing problem of the indicating lamp 6 can be solved, because the steel shell 1 is provided with the notch 1-3 and the notch 1-4, when the second limiting part 1-2 on the steel shell 1 is not formed during battery production, the second bracket 4 can be installed from the side, provided with the notch 1-3, of the steel shell 1, and the embedded part 4-2 is embedded in the notch 1-3, on one hand, the second bracket 4 can be effectively positioned in the circumferential direction, on the other hand, the indicating lamp 6 can be exposed to the outer side of the steel shell 1 to play a role of emitting light for a user to refer to, and by adopting the mode, the alignment problem of the indicating lamp 6 and the exposed notch can be solved, the second bracket 4 can be prevented from shifting in the axial direction of the steel shell, and the assembly and the positioning and the fixing are convenient; the notches 1-4 are arranged to fit into the notches 1-3 so that the insert portions 4-2 of the second bracket 4 can be smoothly fitted into the notches 1-3 of the steel shell 1 before the second restricting portions 1-2 are formed.
The USB charging port 5 is fixed relative to the steel shell 1, specifically, a charging port installation part 4-3 is further formed on the second support 4, the charging port installation part 4-3 is provided with a charging port accommodating hole, the USB charging port 5 is embedded into the charging port accommodating hole, and an exposure hole is formed in the steel shell 1 corresponding to the USB charging port 5, so that the USB charging port 5 can be enhanced, the USB charging port 5 cannot be loosened due to long-term insertion and extraction, the USB charging port 5 and the indicator lamp 6 are both installed on the second support 4, and the USB charging port 5 and the exposure hole can be fully aligned and relatively fixed due to the matching effect of the embedding part 4-2 and the notch 1-3 on the second support 4.
Further, the core assembly further comprises a first conductor mounting plate 10 and a second conductor mounting plate 11; a first conductor mounting plate 10 is mounted on the first support 3, as shown in fig. 10 to 11, the negative output unit 8 is mounted on the first conductor mounting plate 10, a plurality of first output conductors 12 are further mounted on the first conductor mounting plate 10, each first output conductor 12 is connected to one of the positive pole and the negative pole of the electric core 2, and at least one first output conductor 12 is connected to the positive pole of the electric core 2; a second conductor mounting plate 11 is mounted on the second support 4, the positive electrode output unit 7 is mounted on the second conductor mounting plate 11, a plurality of second output conductors 13 are further mounted on the second conductor mounting plate 11, each second output conductor 13 is connected to one of a positive electrode and a negative electrode of the electric core 2, and at least one second output conductor 13 is connected to the negative electrode of the electric core 2; each of the first output conductor 12 and the second output conductor 13 is connected to the electric core 2 through an internal circuit of the flexible circuit board 9. By adopting the structure, each end of the lithium battery is provided with two electric energy output electrodes, so that the lithium battery has more purposes, a user can directly use the positive output unit 7 and the negative output unit 8 as power supply electrodes to supply power to electric equipment on one hand, and on the other hand, more output lines can be led out from the lithium battery in the forms of welding wires and the like on the first output conductor 12 and the second output conductor 13 so as to meet the external complex power supply requirement simultaneously, so that the lithium battery has better applicability. The first output conductor 12, the second output conductor 13 and the battery core 2 are connected by adopting an internal circuit of the flexible circuit board 9, so that the wiring in the steel shell 1 is regular and not disordered.
Preferably, as shown in fig. 12 to 13, the positive output unit 7 is installed at the center of the second conductor installation plate 11, the second output conductors 13 are metal blocks, all the second output conductors 13 form a linear array distributed along the radial direction of the steel shell 1, and the linear array is disposed in the notches 1 to 4, so that the notches 1 to 4 are used to expose the second output conductors 13. Specifically, a boss part 11-1 is formed on the second conductor mounting plate 11, and the boss part 11-1 is embedded in the notch 1-4; the second output conductor 13 is embedded in the second conductor mounting plate 11, and the upper end of the second output conductor 13 is exposed from the upper end of the boss part 11-1, so that the rotation stopping effect on the second conductor mounting plate 11 is realized by utilizing the matching effect of the second conductor mounting plate 11 and the notch 1-4, the second conductor mounting plate 11 is prevented from rotating relative to the steel shell 1 to cause the second output conductor 13 to be in contact with the steel shell 1, the boss part 11-1 plays a role in making up filling, and the upper end of the boss part is flush with the end face of the steel shell 1, so that no sharp edge exists on the steel shell 1, and a user is prevented from being cut and a plastic film 15 wrapped outside the steel shell 1 is prevented from being damaged.
Preferably, a surface paste 16 is pasted on the end face of the steel shell 1, and the second output conductor 13 is covered by the surface paste 16; the center of the surface paste 16 is provided with a through hole for exposing the anode output unit 7. In normal use, the positive output unit 7 is the main output part, and when the user has more connection requirements, the bottom sticker 16 can be removed to expose all the second output conductors 13, so as to perform circuit connection.
Preferably, all of the first output conductors 12 are ring-shaped with different diameters, and all of the first output conductors 12 are concentrically arranged; the negative output unit 8 is a circular metal sheet and is detachably arranged relative to the first conductor mounting plate 10; when the negative output unit 8 is fixed to the first conductor mounting plate 10, it covers all of the first output conductors 12. Specifically, the inward side of the negative output unit 8 is covered with an insulating layer; as shown in fig. 14, the negative electrode output unit 8 has a recess 8-1 at the center, the recess 8-1 has a screw hole at the center, a screw 14 passes through the screw hole and is screwed and fixed on the first conductor mounting plate 10, and the edge of the screw 14 is disposed outside the first limiting portion 1-1 and contacts with the first limiting portion 1-1, and the tail of the screw 14 is not exposed due to the recess 8-1. In this way, when the user has more connection requirements, the negative output unit 8 is the main output part, and when the user has more connection requirements, the negative output unit 8 can be detached to expose all the first output conductors 12, so as to perform circuit connection. Preferably, the insulating layer is rubber, the insulating layer on the back of the negative output unit 8 is used to prevent the negative output unit 8 from conducting with other first output conductors 12, and the edge of the negative output unit 8 is in contact with the first limiting portion 1-1 to play a role of sealing.
Preferably, the main body of the flexible circuit board 9 is cylindrical, and is sleeved outside the electric core 2, a charging and discharging management circuit and an independent connection circuit are formed on the flexible circuit board 9, a connection port 9-1 for connecting the charging and discharging management circuit and the connection circuit with other components in the steel shell 1 is formed on the flexible circuit board 9, the connection port 9-1 extends out of the main body of the flexible circuit board 9 in a flat cable manner, and the connection port 9-1 is connected with a first plug connector 9-2; the second plug connector 17 is installed on the second conductor installation plate 11, a second wire slot 11-2 is formed in the second conductor installation plate 11, the indicator lamp 6, the USB charging port 5, the positive electrode of the battery cell 2, the positive electrode output unit 7 and the second output conductor 13 are connected with the second plug connector 17 through a cable arranged in the second wire slot 11-2, and the second plug connector 17 is connected with the first plug connector 9-2 in an inserting mode. And a gap part is formed on the second support 4, so that a wiring groove for the flat cable to pass through is formed between the two sides of the second support 4 and the steel shell 1.
The first conductor mounting plate 10 is provided with third plug connectors 18, a first wire slot 10-1 is formed in the first conductor mounting plate 10, the indicator lamp 6, the USB charging port 5, the positive electrode of the battery cell 2, the positive electrode output unit 7 and the second output conductor 13 are connected with the third plug connectors 18 through cables arranged in the first wire slot 10-1, and each third plug connector 18 is connected with one independent first plug connector 9-2 in an inserted manner. A gap part is formed on the first support 3, so that a wiring groove for the wiring to pass through is formed between the two sides of the first support 3 and the steel shell 1.
Through the structure, the wiring inside the steel shell 1 is simple, the electric core assembly is convenient to assemble, the circuit connection can be completed only by connecting corresponding plug connectors, and the connection is convenient.
The invention also provides a production method of the lithium battery, which comprises the following steps:
a1, intercepting a pipe 19 with a set length;
step A2, grooving one end of a pipe 19 to form a groove opening 1-3 and a fan-shaped process groove 19-1 communicated with the groove opening 1-3; as shown in fig. 16;
step A3, sealing the other end of the pipe 19 to form a first limiting part 1-1;
step A4, assembling all parts except the negative output unit 8 in the battery pack to form an assembly, integrally installing the assembly into the pipe 19, and enabling the embedded part 4-2 on the second support 4 to be embedded into the notch 1-3;
a step A5 of fixing a negative electrode output unit 8 to the first conductor mounting plate 10;
in this step, the negative output unit 8 is fixed to the first conductor mounting plate 10, and since the negative output unit 8 is disposed outside the first limiting portion 1-1 and the edge of the negative output unit 8 contacts with the edge of the first limiting portion 1-1, the negative output unit 8 can play a limiting role, so that the assembly body is prevented from moving axially relative to the steel shell 1 in the subsequent operation process, and the subsequent production process is facilitated.
Step A6, sealing one end of the pipe 19, where the process groove 19-1 is formed, to form a second limiting part 1-2 and a notch 1-4 on the second limiting part 1-2, wherein the pipe 19 is completely formed into a steel shell 1;
step A7, covering a plastic film 15 on the outer side of the steel shell 1 by adopting a thermal shrinkage process;
and step A8, attaching a surface sticker 16 to one end of the steel shell 1 corresponding to the positive electrode output unit 7.
The method can effectively package the part of the battery pack except the negative output unit 8 into the steel shell 1, and simultaneously finish the alignment work of the indicator lamp 6 and the USB charging port 5, and has the advantages of reasonable flow setting, simple process, low production cost, reliable structure of the produced lithium battery and long service life.
In the step A4, assembling all the components of the cell assembly except the negative output unit 8 to form an assembly specifically includes the following steps:
step B1, preassembling the first support 3, the first conductor mounting plate 10, the second plug connector 17 and the first output conductor 12, and performing line connection to form a first assembly part;
step B2, pre-assembling the second bracket 4, the second conductor mounting plate 11, the third plug connector 18, the second output conductor 13, the positive output unit 7, the indicator light 6 and the USB charging port 5, and performing line connection to form a second assembly;
step B3, sleeving the flexible circuit board 9 to the outer side of the battery core 2;
step B4, sleeving the first assembly part and the second assembly part to the cathode and the anode of the battery core 2 through a first sleeving part 3-1 and a second sleeving part 4-1 respectively;
and step B5, respectively connecting each first plug connector 9-2 on the flexible circuit board 9 with the corresponding second plug connector 17 and third plug connector 18 in a plugging manner.
The assembling process has reasonable steps, convenient assembly, concise and clear assembled body, non-disordered wiring and convenient subsequent assembly operation.
The USB rechargeable lithium battery has a universal USB interface, a user can charge the battery through a universal USB data line, the charging is convenient, the battery core can be stably installed in the steel sleeve by arranging the first support and the second support, and an annular gap for the flexible circuit board is formed between the steel sleeve and the battery core, so that the battery is compact in integral structure and high in utilization rate of an internal space.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (1)
1. A lithium battery production method is characterized by comprising the following steps:
a1, intercepting a pipe with a set length;
step A2, grooving one end of the pipe to form a notch and a fan-shaped process groove communicated with the notch;
step A3, sealing the other end of the pipe to form a first limiting part;
step A4, assembling all parts except the negative output unit in the battery pack to form an assembly, integrally installing the assembly into the pipe, and enabling the embedded part on the second support to be embedded into the notch;
step A5, fixing the negative output unit to the first conductor mounting plate;
step A6, sealing one end of the pipe, which is provided with the process groove, to form a second limiting part and a notch on the second limiting part, wherein the pipe is completely formed into a steel shell;
step A7, covering a plastic film on the outer side of the steel shell by adopting a thermal shrinkage process;
and A8, attaching a surface paste to one end of the steel shell corresponding to the positive electrode output unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210073573.1A CN115332639A (en) | 2020-02-04 | 2020-02-04 | Lithium battery production method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210073573.1A CN115332639A (en) | 2020-02-04 | 2020-02-04 | Lithium battery production method |
| CN202010079994.6A CN111276644B (en) | 2020-02-04 | 2020-02-04 | USB charging type lithium battery |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010079994.6A Division CN111276644B (en) | 2020-02-04 | 2020-02-04 | USB charging type lithium battery |
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| Publication Number | Publication Date |
|---|---|
| CN115332639A true CN115332639A (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210073573.1A Pending CN115332639A (en) | 2020-02-04 | 2020-02-04 | Lithium battery production method |
| CN202010079994.6A Active CN111276644B (en) | 2020-02-04 | 2020-02-04 | USB charging type lithium battery |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010079994.6A Active CN111276644B (en) | 2020-02-04 | 2020-02-04 | USB charging type lithium battery |
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|---|---|---|---|---|
| CN205960150U (en) * | 2016-08-30 | 2017-02-15 | 廖志冰 | Take lithium cell of USB output and microUSB input interface |
| CN207410049U (en) * | 2017-05-18 | 2018-05-25 | 吴添娣 | A kind of USB rechargeable batteries |
| CN208315675U (en) * | 2018-06-11 | 2019-01-01 | 深圳市新昊青科技有限公司 | A kind of cylindrical battery configuration |
| CN209217031U (en) * | 2019-02-20 | 2019-08-06 | 中山市铂特电子科技有限公司 | A kind of battery with USB interface |
| CN209357801U (en) * | 2019-03-28 | 2019-09-06 | 东莞市合中川电子科技有限公司 | A kind of power supply unit |
-
2020
- 2020-02-04 CN CN202210073573.1A patent/CN115332639A/en active Pending
- 2020-02-04 CN CN202010079994.6A patent/CN111276644B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111276644B (en) | 2022-03-11 |
| CN111276644A (en) | 2020-06-12 |
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