CN209860067U - Lithium battery structure with four electrodes - Google Patents
Lithium battery structure with four electrodes Download PDFInfo
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- CN209860067U CN209860067U CN201920475910.3U CN201920475910U CN209860067U CN 209860067 U CN209860067 U CN 209860067U CN 201920475910 U CN201920475910 U CN 201920475910U CN 209860067 U CN209860067 U CN 209860067U
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- 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
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- 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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Abstract
The utility model relates to a lithium battery structure of four electrodes, including two bipolar electrode positive plates, two bipolar electrode negative plates, a plurality of diaphragms that are separated from between bipolar electrode positive plate and the bipolar electrode negative plate, the electric core of lithium cell is folded into to positive, the crisscross bipolar electrode positive plate of burden, diaphragm, bipolar electrode negative plate, still including the PP pipe that is located lithium cell one corner and extranal packing sealing connection. The double-electrode positive plate comprises two positive electrodes arranged on the outer sides of two ends of the positive plate, and the double-electrode negative plate comprises two negative electrodes arranged on the outer sides of two ends of the negative plate, wherein the positive electrodes and the negative electrodes form 90-degree included angles and are respectively exposed out of four ends of the lithium battery. Be equipped with a plurality of through-holes on positive plate, the negative pole piece respectively, the through-hole diameter is less than 5 um. The scheme is particularly suitable for being used in new energy automobiles with quick charge and quick discharge, and has high charge and discharge efficiency and stable and reliable performance.
Description
Technical Field
The utility model relates to a battery manufacturing field especially relates to a lithium battery structure of four electrodes.
Background
The lithium battery can be repeatedly charged and discharged, and is more and more the first choice of power supply of the majority of electronic products, but the lithium battery in the current market adopts a structure of a positive electrode and a negative electrode, and has the following defects:
(1) when the capacity of the lithium battery is large and the load is heavy, the generated heat is large in the process of charging or discharging, so that the temperature of the lithium battery is increased, and the use and the performance of the battery are influenced.
(2) The positive and negative electrodes of most lithium batteries are arranged in parallel at the same side, and the structure has the hidden trouble that the positive and negative electrodes are easy to be short-circuited in the production or use process, so that the battery failure and even the explosion danger are caused.
In view of the above shortcomings, we have invented a four-electrode lithium battery structure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an invention aim at solve current lithium cell capacity great, when the load is heavier, the heat that produces is great for the temperature rise of lithium cell has an influence to the use and the performance of battery, and the positive and negative pole of lithium cell is arranged in same one side, and this kind of structure has the hidden danger that takes place positive, negative pole short circuit easily, causes the battery trouble and has the problem of explosion danger even, and its concrete solution is as follows:
the utility model provides a four electrode's lithium cell structure, battery appearance are the rectangle, including two anodal pieces of bipolar electrode, two negative pole pieces of bipolar electrode, a plurality of separate in diaphragm between anodal piece of bipolar electrode and the bipolar electrode negative pole piece, positive, negative crisscross the electric core of lithium cell is folded into to bipolar electrode anodal piece, diaphragm, bipolar electrode negative pole piece, the inner space of the extranal packing of lithium cell and in the inside clearance of electric core, fill electrolyte, still including be located lithium cell one corner with extranal packing sealing connection's PP pipe.
The double-electrode positive plate comprises two positive electrodes arranged on the outer sides of two ends of the positive plate, a positive material is coated in the middle of the positive plate, the two ends of the positive plate are positive plate lugs, and each positive plate lug is welded with the positive electrode on the same side.
The double-electrode negative plate comprises two negative electrodes arranged on the outer sides of two ends of the negative plate, a negative material is coated in the middle of the negative plate, negative plate lugs are arranged at two ends of the negative plate, and each negative plate lug is welded with the negative electrode on the same side.
Further, the positive electrode material is any one of lithium cobalt oxide, lithium nickel oxide, lithium manganese oxide or polyanion positive electrode material, and the thickness range is 20-300 um. The negative electrode material is any one of a carbon negative electrode material, a tin-based negative electrode material, a lithium-containing transition metal nitride negative electrode material, an alloy negative electrode material or a nano-scale negative electrode material, and the thickness range of the negative electrode material is 20-300 um.
Furthermore, a plurality of through holes are respectively arranged on the positive plate and the negative plate, the diameter of each through hole is smaller than 5um, and then the positive plate and the negative plate are respectively coated with the positive material and the negative material. The middle part of the positive electrode is provided with PP glue, and the middle part of the negative electrode is provided with PP glue. The positive electrode and the negative electrode form an included angle of 90 degrees and are respectively exposed out of four ends of the lithium battery. The diaphragm material is any one of PP or PE material, and the thickness of the diaphragm is 16 um-20 um. The width of the positive plate tab is smaller than that of the end part of the positive plate, and the width of the negative plate tab is smaller than that of the end part of the negative plate.
Further, the diameter of the PP pipe is larger than 2mm, one end of the PP pipe is located inside the lithium battery, and the other end of the PP pipe is located inside the lithium battery. The outer package is an aluminum-plastic composite film material and is formed by hot-pressing and packaging the two pieces of the outer package. The positive plate is an aluminum foil, the negative plate is a copper foil, the positive electrode is an aluminum sheet, and the negative electrode is a copper nickel plating or nickel sheet.
To sum up, adopt the utility model discloses a technical scheme has following beneficial effect:
the scheme solves the problems that when the capacity of the existing lithium battery is large and the load is heavy, the generated heat is large, the temperature of the lithium battery rises, the use and the performance of the battery are influenced, the positive pole and the negative pole of the lithium battery are arranged on the same side, and the structure is easy to cause the hidden trouble of positive and negative pole short circuits, so that the battery fault is even dangerous to explode. The positive and negative pole piece both ends that this scheme adopted are equipped with respectively just, negative pole piece utmost point ear, do not again respectively with the lithium cell on the same end positive, negative electrode welding, and the lithium cell has two positive electrodes, two negative electrodes respectively, have not only increaseed the area of battery current, make difficult heating, the battery temperature rise is low, charge and discharge performance is better under the heavy current condition, moreover, because every electrode is in the different ends of battery, the possibility of electrode short circuit has been avoided in production or the use effectively, the security of battery has been improved. In addition, the PP pipe can be used for filling electrolyte and can also be used as an air release valve of the battery. The plurality of through holes designed on the positive plate and the negative plate are not only favorable for heat dissipation, but also can increase the space of electrolyte, improve the energy density of the lithium battery and further improve the performance of the lithium battery. The lithium battery with the four electrodes can increase the current from 1A to 5A on the basis of the original lithium battery with two end electrodes, and even can increase the current to 10A if the optimization of materials is added. The scheme is particularly suitable for being used in new energy automobiles with quick charge and quick discharge, and has high charge and discharge efficiency and stable and reliable performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed to be used in the description of the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.
Fig. 1 is an exploded view of a four-electrode lithium battery structure according to the present invention;
fig. 2 is an external structural view of a four-electrode lithium battery structure of the present invention;
fig. 3 is a structural diagram of the battery cell of the present invention.
Description of reference numerals:
1-diaphragm, 2-battery core, 3-positive plate, 4-positive electrode, 5-positive material, 6-positive plate tab,
7-negative pole piece, 8-negative pole, 9-negative pole material, 10-negative pole piece ear, 11-PP glue, 12-PP pipe,
13-through hole, 14-external package.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to fig. 3, a four-electrode lithium battery structure, the battery appearance is a rectangle, and includes two double-electrode positive plates, two double-electrode negative plates, a plurality of diaphragms 1 separated between the double-electrode positive plates and the double-electrode negative plates, a core 2 of the lithium battery is stacked by the positive and negative staggered double-electrode positive plates, the diaphragms 1, and the double-electrode negative plates, and an electrolyte (not shown in the figures) is filled in an internal space of an outer package 14 of the lithium battery and a gap inside the core 2, and the four-electrode lithium battery structure further includes a PP (also called polypropylene) tube 12 located at one corner of the lithium battery and hermetically connected with the outer package 14.
The double-electrode positive plate comprises two positive electrodes 4 arranged on the outer sides of two ends of a positive plate 3, a positive material 5 is coated in the middle of the positive plate 3, positive plate lugs 6 are arranged at two ends of the positive plate 3, and each positive plate lug 6 is welded with the positive electrode 4 on the same side.
The double-electrode negative plate comprises two negative electrodes 8 arranged on the outer sides of two ends of a negative plate 7, a negative material 9 is coated in the middle of the negative plate 7, negative plate tabs 10 are arranged at two ends of the negative plate 7, and each negative plate tab 10 is welded with the negative electrode 8 on the same side.
Further, the positive electrode material 5 is any one of lithium cobalt oxide, lithium nickel oxide, lithium manganese oxide or polyanion positive electrode material, and the thickness range is 20um to 300 um. The negative electrode material 9 is any one of a carbon negative electrode material, a tin-based negative electrode material, a lithium-containing transition metal nitride negative electrode material, an alloy negative electrode material or a nano-scale negative electrode material, and the thickness range is 20-300 um.
Furthermore, a plurality of through holes 13 are respectively arranged on the positive plate 3 and the negative plate 7, the diameter of each through hole 13 is smaller than 5um, and then the positive material 5 and the negative material 9 are respectively coated. The middle part of the positive electrode 4 is provided with PP glue 11, and the middle part of the negative electrode 8 is provided with PP glue 11. The positive electrode 4 and the negative electrode 8 form an included angle of 90 degrees and are respectively exposed out of four ends of the lithium battery. The diaphragm 1 is made of PP or PE (also called polyethylene) material, and the thickness of the diaphragm 1 is 16-20 um. The width of the positive electrode tab 6 is smaller than that of the end of the positive electrode sheet 3, and the width of the negative electrode tab 10 is smaller than that of the end of the negative electrode sheet 7.
Further, the diameter of the PP pipe 12 is larger than 2mm, one end of the PP pipe is located inside the lithium battery, and the other end of the PP pipe is located inside the lithium battery. The outer package 14 is made of aluminum-plastic composite film material and is formed by hot-pressing and packaging the two pieces. The positive plate 3 is an aluminum foil, the negative plate 7 is a copper foil, the positive electrode 4 is an aluminum sheet, and the negative electrode 8 is a copper nickel plating or nickel sheet.
To sum up, adopt the utility model discloses a technical scheme has following beneficial effect:
the scheme solves the problems that when the capacity of the existing lithium battery is large and the load is heavy, the generated heat is large, the temperature of the lithium battery rises, the use and the performance of the battery are influenced, the positive pole and the negative pole of the lithium battery are arranged on the same side, and the structure is easy to cause the hidden trouble of positive and negative pole short circuits, so that the battery fault is even dangerous to explode. The positive and negative pole piece both ends that this scheme adopted are equipped with respectively just, negative pole piece utmost point ear, do not again respectively with the lithium cell on the same end positive, negative electrode welding, and the lithium cell has two positive electrodes, two negative electrodes respectively, have not only increaseed the area of battery current, make difficult heating, the battery temperature rise is low, charge and discharge performance is better under the heavy current condition, moreover, because every electrode is in the different ends of battery, the possibility of electrode short circuit has been avoided in production or the use effectively, the security of battery has been improved. In addition, the PP pipe 12 is designed to be used not only for filling the electrolyte but also as an air release valve of the battery. A plurality of through-holes 13 of design on positive plate 3, the negative pole piece 7 not only are favorable to the heat dissipation, can also make the space increase of electrolyte, improve the energy density of lithium cell to improve the performance of lithium cell. The lithium battery with the four electrodes can increase the current from 1A to 5A on the basis of the original lithium battery with two end electrodes, and even can increase the current to 10A if the optimization of materials is added. The scheme is particularly suitable for being used in new energy automobiles with quick charge and quick discharge, and has high charge and discharge efficiency and stable and reliable performance.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (10)
1. The utility model provides a lithium battery structure of four electrodes, battery appearance is the rectangle, its characterized in that: the lithium battery comprises two double-electrode positive plates, two double-electrode negative plates and a plurality of diaphragms separated between the double-electrode positive plates and the double-electrode negative plates, wherein the double-electrode positive plates, the diaphragms and the double-electrode negative plates which are staggered positively and negatively are stacked into a battery core of the lithium battery, an internal space of an external package of the lithium battery and a gap inside the battery core are filled with electrolyte, and the lithium battery also comprises a PP (polypropylene) tube which is positioned at one corner of the lithium battery and is hermetically connected with the external package;
the double-electrode positive plate comprises two positive electrodes arranged on the outer sides of two ends of the positive plate, a positive material is coated in the middle of the positive plate, positive plate lugs are arranged at two ends of the positive plate, and each positive plate lug is welded with the positive electrode on the same side;
the double-electrode negative plate comprises two negative electrodes arranged on the outer sides of two ends of the negative plate, a negative material is coated in the middle of the negative plate, negative plate lugs are arranged at two ends of the negative plate, and each negative plate lug is welded with the negative electrode on the same side.
2. A four-electrode lithium battery construction as claimed in claim 1, wherein: the positive electrode material is any one of lithium cobalt oxide, lithium nickel oxide, lithium manganese oxide or polyanion positive electrode material, and the thickness range is 20-300 um; the negative electrode material is any one of a carbon negative electrode material, a tin-based negative electrode material, a lithium-containing transition metal nitride negative electrode material, an alloy negative electrode material or a nano-scale negative electrode material, and the thickness range of the negative electrode material is 20-300 um.
3. A four-electrode lithium battery construction as claimed in claim 2, wherein: the positive plate and the negative plate are respectively provided with a plurality of through holes, the diameter of each through hole is smaller than 5um, and then the positive plate and the negative plate are respectively coated with a positive material and a negative material.
4. A four-electrode lithium battery construction as claimed in claim 3, wherein: the middle part of the positive electrode is provided with PP glue, and the middle part of the negative electrode is provided with PP glue.
5. The structure of a four-electrode lithium battery as defined in claim 4, wherein: the positive electrode and the negative electrode form an included angle of 90 degrees and are respectively exposed out of four ends of the lithium battery.
6. A four-electrode lithium battery construction as claimed in claim 5, wherein: the diaphragm material is any one of PP or PE material, and the thickness of the diaphragm is 16 um-20 um.
7. A four-electrode lithium battery construction as claimed in claim 6, wherein: the width of the positive plate tab is smaller than that of the end part of the positive plate, and the width of the negative plate tab is smaller than that of the end part of the negative plate.
8. A four-electrode lithium battery construction as claimed in claim 1, wherein: the diameter of the PP pipe is larger than 2mm, one end of the PP pipe is located inside the lithium battery, and the other end of the PP pipe is located inside the lithium battery.
9. A four-electrode lithium battery construction as claimed in claim 1, wherein: the outer package is an aluminum-plastic composite film material and is formed by hot-pressing and packaging the two pieces of the outer package.
10. A four-electrode lithium battery construction as claimed in claim 1, wherein: the positive plate is an aluminum foil, the negative plate is a copper foil, the positive electrode is an aluminum sheet, and the negative electrode is a copper nickel plating or nickel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920475910.3U CN209860067U (en) | 2019-04-08 | 2019-04-08 | Lithium battery structure with four electrodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920475910.3U CN209860067U (en) | 2019-04-08 | 2019-04-08 | Lithium battery structure with four electrodes |
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| Publication Number | Publication Date |
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| CN209860067U true CN209860067U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920475910.3U Active CN209860067U (en) | 2019-04-08 | 2019-04-08 | Lithium battery structure with four electrodes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048150A (en) * | 2019-04-08 | 2019-07-23 | 惠州赫能科技有限公司 | A kind of lithium battery structure of four electrodes |
| EP4087003A2 (en) | 2021-05-05 | 2022-11-09 | DarmokTech | Cell, lithium based battery and method for dissembling the battery |
-
2019
- 2019-04-08 CN CN201920475910.3U patent/CN209860067U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048150A (en) * | 2019-04-08 | 2019-07-23 | 惠州赫能科技有限公司 | A kind of lithium battery structure of four electrodes |
| EP4087003A2 (en) | 2021-05-05 | 2022-11-09 | DarmokTech | Cell, lithium based battery and method for dissembling the battery |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230228 Address after: 516000 Industrial plants in Building D and Building E, No. 6, Huatai Road, Huinan High-tech Industrial Park, Hui'ao Avenue, Huizhou City, Guangdong Province Patentee after: Guangdong Ruichi New Energy Technology Co.,Ltd. Address before: 516,025 Building D and Building E, No. 6 Huatai Road, Huinan Industrial Park, Zhongkai Hi tech Zone, Huizhou City, Guangdong Province Patentee before: HUIZHOU HERNENG TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |