CN112242568A - Polar plate connecting method of lead-acid storage battery - Google Patents
Polar plate connecting method of lead-acid storage battery Download PDFInfo
- Publication number
- CN112242568A CN112242568A CN202011023212.3A CN202011023212A CN112242568A CN 112242568 A CN112242568 A CN 112242568A CN 202011023212 A CN202011023212 A CN 202011023212A CN 112242568 A CN112242568 A CN 112242568A
- Authority
- CN
- China
- Prior art keywords
- mold
- cavity
- welded
- lead
- fusible metal
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/14—Assembling a group of electrodes or separators
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to a method for connecting polar plates of a lead-acid storage battery, which comprises the steps of inserting a polar lug of a polar group into a die; carrying out hot melting on the fusible metal in the mold; after the meltable metal is melted into a liquid state, cooling and solidifying the meltable metal and connecting the meltable metal and the tab into a whole; and (6) demolding. The manufacturing method of the invention has high efficiency and low cost.
Description
Technical Field
The invention relates to the field of lead-acid storage battery manufacturing.
Background
The connection technology of the lead-acid storage battery pole plates in the prior art adopts a manual welding mode or a welding mode through a cast-weld machine, the manual welding can generate a large amount of toxic gas, the health is not facilitated, the production efficiency is also seriously influenced, an empty welding phenomenon exists in the welding mode of the cast-weld machine on one hand, the battery quality is influenced, and the cast-weld machine is low in efficiency and high in cost on the other hand.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for connecting polar plates of a lead-acid storage battery, which is characterized in that the polar lugs of a polar group are deeply inserted into a die; carrying out hot melting on the fusible metal in the mold; after the meltable metal is melted into a liquid state, cooling and solidifying; and (6) demolding.
Furthermore, the hot melting mode is to heat the fusible metal in the mold by electrifying.
Further, the hot melting mode is that the fusible metal in the mold is subjected to microwave heating.
Furthermore, the mode of inserting the pole lugs of the pole group into the mold is that the mold moves towards the pole lugs of the pole group.
Further, the mold is located below the tabs of the pole group.
Further, before the pole lugs of the pole group are deeply inserted into the die, the step of placing the pole group into a battery shell is also included.
Further, the mold is mounted on the battery case.
Further, the fusible metal in the mold is lead.
Further, the mold is provided with a first cavity, the fusible metal is located in the first cavity, and the tab penetrates into the first cavity.
Further, the mold is provided with a first cavity and a second cavity, the fusible metal is located in the first cavity, and the tab penetrates into the second cavity. The first cavity is in communication with the second cavity.
The invention also discloses a die, a using method of the die and a welding method.
The pole plate connecting method has high efficiency and low cost.
Drawings
FIG. 1 is a schematic diagram of a lead acid battery of the present invention with the battery cover removed;
FIG. 2 is a schematic view of a single pole group of a lead acid battery of the present invention;
FIG. 3 is a cross-sectional view of the inventive die;
FIG. 4 is a schematic view of the tab welding of the lead acid battery of the present invention;
FIG. 5 is a schematic view of a mold installation according to another embodiment of the present invention;
fig. 6 is a schematic view of a mold according to another embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the specific drawings.
As shown in fig. 1 and 2, the lead-acid storage battery of the invention comprises a battery shell 1, a pole group 2 arranged on the battery shell 1, a pole group 2 and a pole plate, wherein the pole plate is provided with a pole ear 3, and a bus bar 10 for connecting the pole ear.
As shown in fig. 3, the die 4 includes a die housing 5, a cavity 6 is disposed in the housing 5, the cavity 6 is used for receiving a body to be welded, such as the electrode group 2, a fusible metal 7 is disposed in the cavity 6, the fusible metal 7 is preferably a metal lead, a positive electrical connection port 8 and a negative electrical connection port 9 are formed on the housing 5 of the die 4, the positive electrical connection port 8 and the negative electrical connection port 9 are electrically connected to two ends 7a and 7b of the fusible metal 7, respectively, and the positive electrical connection port 8 and the negative electrical connection port 9 are electrically connected to an external power source through a conducting wire. The metal lead can use lead bars or lead wires and other lead with different shapes and sizes according to the requirements, does not achieve better hot melting effect, has the cross section size as small as possible and the length size as large as possible, and thus has large resistance and good hot melting effect. As another embodiment, the positive electrical connection port 8 and the negative electrical connection port 9 on the housing 5 of the mold 4 may be replaced with a microwave source, such as an electromagnetic wave, or other source that heats and melts the metal, at the corresponding locations. In addition, in order to achieve a better heat fusing effect, a positive electrical connection port 8 and a negative electrical connection port 9 and a wave source can be arranged on the housing 5 of the die 4 at the same time to realize heat fusing of the metal lead.
As shown in fig. 4, a method for connecting pole plates of a lead-acid storage battery comprises the following steps that a pole lug 3 of a pole group penetrates into a cavity 6 of a mold 4 (metal lead 7 can be shown in fig. 4, and the pole lug 3 does not penetrate into the bottom of the cavity 6); the positive electric connection port 8 and the negative electric connection port 9 on the shell 5 are externally connected with a power supply (not shown in the figure) through leads, metal lead in the cavity 6 of the die 4 is electrified, the temperature of the metal lead is continuously increased due to the passing of current in the metal lead and the resistance of the metal lead, the metal lead is continuously melted into liquid lead, the melted liquid lead is fused with the pole lugs of the pole plates, the current passing pole lugs fused with the liquid lead and the surface resistance of the pole lugs passing the current are large, so that the temperature of the pole lugs passing the current is increased, lead oxide and lead sulfate on the surface of the pole lugs can fall off from the surfaces of the pole lugs, the melted liquid lead is favorably fused with the pole lugs of the pole plates, and in addition, the density of the lead oxide and the lead sulfate is lower than that of the liquid lead; disconnecting the external power supply; and demolding the mold 4 after the liquid lead is cooled and solidified with the pole lugs. Lead oxide and lead sulfate can be finally formed on the surface of the bus bar formed after liquid lead is cooled, and the electric conduction is basically not influenced.
The pole group 2 can be put into the battery shell 1 to be completely put into the groove, and then the tab 3 of the pole group 2 is deeply inserted into the cavity 6 of the die 4 to be die-welded; or the tab 3 of the electrode group 2 is placed into the battery shell 1 and is completely put into the groove after being welded and demoulded. In addition, since the weight of the die is much lighter than the weight of the body to be welded, such as a pole group, the way in which the tab 3 of the pole group 2 of the present invention is inserted into the cavity 6 of the die 4 is preferably that the die 4 is moved in the direction of the tab 3 of the pole group 2, and further, in order to avoid the liquid lead from dripping onto the body to be welded, such as a pole group, during welding, the die 4 is preferably located below the tab 3 of the pole group 2. Of course, the manner of inserting the tab 3 of the electrode group 2 into the cavity 6 of the mold 4 may also be that the mold 4 moves from the top to the direction of the tab 3 of the electrode group 2, as shown in fig. 5 and 6, the mold 4 has a cavity 6, a fusible metal such as lead (not shown in the figures) is placed in the cavity 6, the cavity 6 has a bottom 12, a tab hole 11 is formed on the bottom 12, the mold 4 moves from the top to the direction of the tab 3 of the electrode group 2, that is, the tab 3 passes through the tab hole 11, and the bottom 12 of the cavity 6 realizes the isolation and sealing of the tab to be welded and the tab below. The mold 4 may be mounted on the battery case or on the body to be welded, such as a tab, or fixed by other means, as desired. According to the invention, the metal lead is electrified and melted, so that the melting of the metal lead is realized, and impurities such as lead oxide and lead sulfate on the surface of the tab are effectively removed, so that the welding effect is ensured, and the defect that the surface of the tab needs to be polished by a traditional welding machine is avoided.
Alternatively, the metallic lead in the cavity 6 of the mould 4 may be heated by microwaves to form liquid lead, and the object of the invention may be achieved.
The polar plate connecting method of the lead-acid storage battery can also realize the aim of the invention by firstly carrying out hot melting on the fusible metal in the mould and then inserting the polar lugs of the polar group into the mould.
The method for using the mold of the present invention, the first embodiment method: a body to be welded, such as a tab, is inserted into a cavity of the mold; energizing a fusible metal, such as lead, disposed within the mold cavity to fuse; after the liquid state is formed, the power is cut off, and the die is demolded after the liquid state is cooled and solidified with the body to be welded. The second embodiment: a body to be welded, such as a tab, is inserted into a cavity of the mold; microwave melting of a fusible metal such as lead disposed within the mold cavity; and after the liquid state is formed, closing the microwave, cooling and solidifying the microwave and the body to be welded, and demolding. In addition, the use method of the mold can also melt the fusible metal arranged in the cavity of the mold; then the body to be welded is inserted into the cavity of the mould.
In addition, the welding method of the invention can be applied to welding the battery tab and can also be applied to other occasions needing welding. When the method is applied to other occasions, the body to be welded is only required to be inserted into the cavity of the die, namely the welding part of the body to be welded is ensured to be inserted into the cavity, and the fusible metal arranged in the cavity of the die is subjected to electrified hot melting or microwave hot melting to be melted into liquid; after the solid metal is melted into liquid state; and demolding after the liquid metal is cooled and solidified with the body to be welded. Also, the body to be welded is preferably inserted into the cavity of the mold by moving the mold from below to the body to be welded located above. In the welding method, the fusible metal arranged in the cavity of the die can be melted; then the body to be welded is inserted into the cavity of the mould.
In addition, the fusible metal and the part to be welded of the body to be welded can be in the same cavity or different cavities, and as long as the cavities are communicated, the liquid metal can circulate and can realize welding, namely, the die is provided with a first cavity and a second cavity, the fusible metal such as lead is positioned in the first cavity, the part to be welded of the body to be welded is positioned in the second cavity, the first cavity is communicated with the second cavity, and the liquid metal can flow into the second cavity from the first cavity, so that the welding of the body to be welded is realized.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (28)
1. A method for connecting polar plates of a lead-acid storage battery is characterized in that the polar lugs of a polar group are deeply inserted into a die; carrying out hot melting on the fusible metal in the mold; after the meltable metal is melted into a liquid state, cooling and solidifying the meltable metal and connecting the meltable metal and the tab into a whole; and (6) demolding.
2. The method for connecting the polar plates of the lead-acid storage battery according to claim 1, wherein the hot melting mode is to heat the fusible metal in the mold by electrifying.
3. The method for connecting the polar plates of the lead-acid storage battery as claimed in claim 1, wherein the hot melting mode is microwave hot melting of the fusible metal in the mold.
4. The method for connecting pole plates of a lead-acid storage battery according to claim 1, wherein the step of inserting the tabs of the pole group into the mold is replaced by a step of heat-melting the fusible metal in the mold, and the step of heat-melting the fusible metal in the mold is replaced by a step of inserting the tabs of the pole group into the mold.
5. The method for connecting pole plates of a lead-acid storage battery as claimed in any one of claims 1 to 4, wherein the tabs of the pole group are inserted into the mold in such a manner that the mold moves in the direction of the tabs of the pole group.
6. The method of claim 5, wherein the mold is located under the tabs of the plate group.
7. A method of connecting plates of a lead-acid battery according to any of claims 1 to 4, characterized in that there is the step of placing the group in the battery casing before inserting the tabs of the group into the mould.
8. The method of claim 7, wherein the mold is mounted on the battery case.
9. A method of connecting plates of a lead-acid battery according to any of claims 1 to 4, characterised in that the fusible metal in the mould is lead.
10. A method of manufacturing a lead-acid battery according to any of claims 1 to 4, wherein the mould has a first cavity in which the fusible metal is located, the tab extending into the first cavity.
11. A method of manufacturing a lead-acid battery according to any of claims 1 to 4, wherein the mould has a first cavity in which the fusible metal is located and a second cavity in which the tab extends. The first cavity is in communication with the second cavity.
12. A mold comprises a shell, wherein a cavity is formed in the shell, and the cavity is used for installing fusible metal.
13. The mold of claim 12 wherein positive and negative electrical connection ports are provided on said housing, said positive and negative electrical connection ports being electrically connectable to said fusible metal.
14. The die of claim 12, wherein the housing is provided with a microwave source for heat-melting the fusible metal.
15. A mould according to any one of claims 12 to 14, wherein the fusible metal is lead.
16. The mold of any one of claims 12-14, wherein the mold has a first cavity, the fusible metal being located in the first cavity.
17. The mold of any one of claims 12-14, wherein the mold has a first cavity and a second cavity, the fusible metal being located in the first cavity, the first cavity being in communication with the second cavity.
18. The mold of any one of claims 12-14, wherein the mold is used for welding a pole group of a lead acid battery.
19. Use of a mould according to any of the claims 12-14, characterised in that the body to be welded is inserted into the mould cavity; melting a fusible metal disposed within the mold cavity; after the meltable metal is melted into a liquid state, cooling and solidifying the meltable metal and the body to be welded; and (6) demolding.
20. The method of using a mold of any of claims 12-14, wherein the fusible metal disposed in the mold cavity is melted; the body to be welded is inserted into the cavity of the mould; after the meltable metal is melted into a liquid state, cooling and solidifying the meltable metal and the body to be welded; and (6) demolding.
21. A welding method of a body to be welded is characterized in that the body to be welded is deeply inserted into a die; melting the fusible metal arranged in the die to form a liquid state, cooling and solidifying the liquid state and the body to be welded; and (6) demolding.
22. A method of welding a body to be welded according to claim 21, wherein positive and negative electrical connection ports are provided on the housing, the positive and negative electrical connection ports being respectively in electrical connection with the fusible metal.
23. A method of welding a body to be welded according to claim 21, wherein a microwave source is provided on the housing for melting the fusible metal.
24. A welding method of a body to be welded according to claim 21, wherein said step of inserting the body to be welded into the mold is replaced by a step of melting the fusible metal provided in the mold, and said step of melting the fusible metal provided in the mold is replaced by said step of inserting the body to be welded into the mold.
25. A method of welding a body to be welded according to any one of claims 21 to 24, in which the mould has a housing in which is formed a first cavity in which the fusible metal is mounted.
26. A method of welding a body to be welded according to claim 25, wherein a second cavity is formed in the housing, the body to be welded extending into the second cavity.
27. A method of welding a body to be welded according to any one of claims 21-24, characterized in that the body to be welded is inserted into the mould in such a way that the mould is moved in the direction of the body to be welded.
28. A method of welding a body to be welded according to claim 27, in which the mould is located below the body to be welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011023212.3A CN112242568B (en) | 2020-09-25 | 2020-09-25 | Polar plate connecting method of lead-acid storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011023212.3A CN112242568B (en) | 2020-09-25 | 2020-09-25 | Polar plate connecting method of lead-acid storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112242568A true CN112242568A (en) | 2021-01-19 |
| CN112242568B CN112242568B (en) | 2022-05-31 |
Family
ID=74171703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011023212.3A Active CN112242568B (en) | 2020-09-25 | 2020-09-25 | Polar plate connecting method of lead-acid storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112242568B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220069422A1 (en) * | 2020-08-31 | 2022-03-03 | Apple Inc. | Cast-in-place busbars for battery pack |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742611A (en) * | 1987-06-29 | 1988-05-10 | General Motors Corporation | Battery assembly process and apparatus |
| JPH01292749A (en) * | 1988-05-18 | 1989-11-27 | Yuasa Battery Co Ltd | Production equipment of lead-acid battery |
| CN101399334A (en) * | 2007-09-28 | 2009-04-01 | 江苏双登集团有限公司 | Lead acid accumulator pole group manufacturing process |
| CN202655604U (en) * | 2012-03-22 | 2013-01-09 | 周剑鹏 | Cast welding device of battery plate |
| CN104759731A (en) * | 2014-12-11 | 2015-07-08 | 张涛 | Heating fusion welding bridging process for lead-acid cell pole group |
| CN106141145A (en) * | 2015-04-10 | 2016-11-23 | 刘凡 | A kind of continuous cast welding equipment of lead-acid storage battery busbar and pole |
| CN107994273A (en) * | 2017-11-24 | 2018-05-04 | 柴立峰 | A kind of lead-acid accumulator welds processing technology and device with founding |
| CN207474608U (en) * | 2017-11-24 | 2018-06-08 | 柴立峰 | Lead-acid accumulator welds processing unit (plant) with founding |
| CN110681848A (en) * | 2019-09-30 | 2020-01-14 | 武汉深蓝自动化设备股份有限公司 | Cast welding method for pole lug of lead-acid storage battery pole plate |
-
2020
- 2020-09-25 CN CN202011023212.3A patent/CN112242568B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742611A (en) * | 1987-06-29 | 1988-05-10 | General Motors Corporation | Battery assembly process and apparatus |
| JPH01292749A (en) * | 1988-05-18 | 1989-11-27 | Yuasa Battery Co Ltd | Production equipment of lead-acid battery |
| CN101399334A (en) * | 2007-09-28 | 2009-04-01 | 江苏双登集团有限公司 | Lead acid accumulator pole group manufacturing process |
| CN202655604U (en) * | 2012-03-22 | 2013-01-09 | 周剑鹏 | Cast welding device of battery plate |
| CN104759731A (en) * | 2014-12-11 | 2015-07-08 | 张涛 | Heating fusion welding bridging process for lead-acid cell pole group |
| CN106141145A (en) * | 2015-04-10 | 2016-11-23 | 刘凡 | A kind of continuous cast welding equipment of lead-acid storage battery busbar and pole |
| CN107994273A (en) * | 2017-11-24 | 2018-05-04 | 柴立峰 | A kind of lead-acid accumulator welds processing technology and device with founding |
| CN207474608U (en) * | 2017-11-24 | 2018-06-08 | 柴立峰 | Lead-acid accumulator welds processing unit (plant) with founding |
| CN110681848A (en) * | 2019-09-30 | 2020-01-14 | 武汉深蓝自动化设备股份有限公司 | Cast welding method for pole lug of lead-acid storage battery pole plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220069422A1 (en) * | 2020-08-31 | 2022-03-03 | Apple Inc. | Cast-in-place busbars for battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112242568B (en) | 2022-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102712033B (en) | Mold for battery cast on strap | |
| CN101752541B (en) | Electrode terminal connection structure and power battery pack using same | |
| CN102055002B (en) | Storage battery and manufacturing technique thereof | |
| CN104966801A (en) | Battery cover plate assembly, preparation method thereof, single battery and battery pack | |
| CN112242568B (en) | Polar plate connecting method of lead-acid storage battery | |
| JP2017053615A (en) | Fluid heating device and method for manufacturing the same | |
| CN109428137A (en) | Secondary battery and battery module | |
| US4642442A (en) | Battery intercell connection by induction heating | |
| CN110497082A (en) | A kind of cylindrical lithium ion battery cathode ear and battery case laser welding connect technique | |
| CN110681848A (en) | Cast welding method for pole lug of lead-acid storage battery pole plate | |
| WO2022061765A1 (en) | Pole plate connection method for lead-acid battery | |
| FI74168B (en) | FOERFARANDE OCH ANORDNING FOER GJUTNING AV ELEKTRODGALLER FOER ELEKTRISKA ACKUMULATORER. | |
| CN218731646U (en) | Single battery self-isolation assembly and battery pack | |
| CN215816311U (en) | Battery cell fusing structure, battery and automobile | |
| CN201311949Y (en) | Electrode terminal coupling structure and power battery pack using same | |
| CN214647637U (en) | Liquid cooling structure of terminal convenient to assembly | |
| CN106941147B (en) | Safe lithium battery pack with battery cells connected by constant-temperature heating and connection method | |
| CN111864174B (en) | Processing method of high-conductivity bus bar for lead-acid storage battery | |
| JP2009119499A (en) | Method for producing lead component for lead storage battery | |
| CN108667109B (en) | Power supply cut-off device and battery system | |
| CN110767869A (en) | Welding-free storage battery busbar structure and manufacturing process | |
| CN113161629A (en) | Polar plate connecting method of lead-acid storage battery | |
| CN102142320A (en) | Manufacturing method for improving performance stability of small-sized bolt-type aluminium electrolytic capacitor | |
| CN107134560B (en) | Thermal protection connecting structure and method for lithium ion power battery | |
| CN211088384U (en) | Welding-free storage battery busbar structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211201 Address after: 311100 room 1120, 3rd floor, building 1, 187 Yunxi Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou lead lithium Zhixing Technology Co.,Ltd. Address before: 233000 No.31, building 25, District 9, Guangcai market, bengshan District, Bengbu City, Anhui Province Applicant before: Bengbu Ruide New Energy Technology Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| CB02 | Change of applicant information |
Address after: 311100 room 1120, 3rd floor, building 1, 187 Yunxi Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province Applicant after: Zhejiang Zhixing Technology Co.,Ltd. Address before: 311100 room 1120, 3rd floor, building 1, 187 Yunxi Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province Applicant before: Hangzhou lead lithium Zhixing Technology Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230625 Address after: 100176 1102, Floor 10, Building 29, Yard 8, Wenhuayuan West Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Lead Lithium Zhixing (Beijing) Technology Co.,Ltd. Address before: 311100 room 1120, 3rd floor, building 1, 187 Yunxi Road, Tangqi Town, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: Zhejiang Zhixing Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |