CN214957096U - Cylindrical battery capable of supplementing liquid for second time - Google Patents
Cylindrical battery capable of supplementing liquid for second time Download PDFInfo
- Publication number
- CN214957096U CN214957096U CN202121480313.3U CN202121480313U CN214957096U CN 214957096 U CN214957096 U CN 214957096U CN 202121480313 U CN202121480313 U CN 202121480313U CN 214957096 U CN214957096 U CN 214957096U
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- Prior art keywords
- winding core
- core support
- hole
- flow
- support column
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- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 230000001502 supplementing effect Effects 0.000 title abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 85
- 238000002347 injection Methods 0.000 claims abstract description 36
- 239000007924 injection Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims description 17
- 238000001802 infusion Methods 0.000 claims description 17
- 239000003792 electrolyte Substances 0.000 abstract description 35
- 238000000034 method Methods 0.000 abstract description 7
- 208000032953 Device battery issue Diseases 0.000 abstract description 5
- 230000009469 supplementation Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 11
- 238000006722 reduction reaction Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 2
- 208000035480 Ring chromosome 8 syndrome Diseases 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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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- Filling, Topping-Up Batteries (AREA)
Abstract
The utility model discloses a cylindrical battery capable of secondary liquid supplementation, which comprises a shell, wherein a top cover is arranged at the top of the shell; a cylindrical outer winding core support is arranged in the shell, and a winding core is arranged on the outer side of the outer winding core support; an outer flow through hole is arranged on the side wall of the outer winding core pillar; the inner side of the outer winding core support column is provided with a cylindrical inner winding core support column in a sliding way, the side wall of the inner winding core support column is provided with an inner flow through hole, and when the inner winding core support column slides relative to the outer winding core support column, the inner flow through hole can be overlapped or staggered with the outer flow through hole; the inner roll core pillar is provided with a liquid injection port, the liquid injection port extends out of the top cover, and a sealing piece is arranged at the liquid injection port. The utility model has the advantages that: the battery can realize secondary liquid supplementing operation so as to solve the technical problems of insufficient electrolyte, battery failure and performance reduction caused by electrolyte consumption in the use process of the battery in the later period of the battery.
Description
Technical Field
The utility model relates to a battery field, concretely relates to but cylinder battery of secondary fluid infusion.
Background
The battery mainly comprises a positive electrode, a negative electrode, an electrolyte and the like, wherein the electrolyte does not provide capacity, but plays an important role in conducting Li < + > between the positive electrode and the negative electrode, so that the characteristics of the battery, such as cycle life, rate capability and the like, are closely related to the electrolyte. The typical lithium ion cylindrical battery in the prior art is disclosed as Chinese patent application with the publication number of CN110600795A, and the lithium ion cylindrical battery and the processing method thereof comprise a winding core, a shell and a current collecting disc, wherein the height of the winding core is smaller than that of the shell, the shell is cylindrical, the winding core is positioned in the shell, tabs are arranged at two ends of the winding core, one end of the winding core is a positive electrode tab, the other end of the winding core is a negative electrode tab, and the end surface of the winding core tab is an annular step surface; the current collecting discs of the positive electrode and the negative electrode are provided with circular grooves which are welding areas; and the annular step surface on the lug is attached to the annular groove on the current collecting disc for welding, and a set distance is reserved between the head and the tail of a welding track during welding.
In the prior art, because the electrolyte can continuously generate oxidation and reduction reactions on the positive electrode and the negative electrode in the working process of the battery, the electrolyte injection amount is too small, which is unfavorable for the cycle life of the lithium ion battery, and meanwhile, if the electrolyte amount is too small, part of active substances can not be infiltrated, which is unfavorable for the exertion of the battery capacity, but when the electrolyte amount is too large, the excessive film-forming additive can continuously consume the active Li component in the battery, so that the capacity attenuation and the reduction of the lithium ion battery are accelerated, and the cycle life is seriously influenced, so that the proper electrolyte amount is favorable for improving the energy density and reducing the cost, and also has an important effect on improving the cycle life of the lithium ion battery. However, in the use process of the battery, the electrolyte is continuously consumed, the performance degradation phenomenon caused by the drying of the electrolyte is easy to occur, the battery failure caused by the insufficient electrolyte in the later period of the battery is avoided, the electrolyte is timely supplemented under the condition that the structure of the battery is not damaged, and the performance of the battery is improved, so that the technical problem which needs to be solved urgently is solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: in the prior art, the cylindrical battery cannot realize secondary liquid supplement, so that the electrolyte is insufficient in the later period of the battery, the battery fails, and the electrolyte is consumed in the use process of the battery to cause the technical problem of performance reduction.
The utility model discloses a realize solving above-mentioned technical problem through following technical means: a cylindrical battery capable of supplementing liquid for the second time comprises a shell, wherein a top cover is arranged at the top of the shell;
a cylindrical outer winding core support is arranged in the shell, and a winding core is arranged on the outer side of the outer winding core support;
an outer flow through hole is formed in the side wall of the outer winding core support;
the inner side of the outer winding core support is slidably provided with a cylindrical inner winding core support, the side wall of the inner winding core support is provided with an inner flow through hole, and the inner flow through hole can be overlapped or staggered with the outer flow through hole when the inner winding core support slides relative to the outer winding core support;
the inner roll core pillar is provided with a liquid injection port, the liquid injection port extends out of the top cover, and a sealing piece is arranged at the liquid injection port.
The utility model provides a but cylinder battery of secondary fluid infusion when the in-service use, at first the position of roll up the core pillar between for outer roll core pillar in the adjustment, so that inner flow through-hole and outflow through-hole overlap and link up, take apart the sealing member, from annotating the inside notes liquid of liquid mouth to the interior roll core pillar, electrolyte then gets into interior roll core pillar, and through the inner flow through-hole, outflow through-hole flows to rolling up the core and infiltrating to rolling up the core, it is complete to roll up the core infiltration, it makes it take place to slide for outer roll core pillar to adjust interior roll core pillar, slide to inner flow through-hole and outflow through-hole dislocation when sealing, then the inside passageway to rolling up the core of interior roll core pillar is blocked, continue to pour into electrolyte into, pour into the completion after, reclose the sealing member. After the core electrolyte is consumed, the position of the inner core support column can be adjusted to enable the inner flow through hole to be communicated with the outer flow through hole in an overlapped mode, the electrolyte inside the inner core support column is released, and the secondary liquid supplementing operation inside the inner core support column is completed. Compared with the prior art, the battery can realize secondary liquid supplementing operation so as to solve the technical problems of insufficient electrolyte, battery failure and performance reduction caused by electrolyte consumption in the use process of the battery in the later period of the battery.
Optimally, the top end of the inner winding core support column extends out of the top cover;
or the top end of the inner winding core support is provided with a liquid injection pipe, and the top end of the liquid injection pipe extends out of the top cover;
the pouring opening is provided at the end of the member extending from the top cover.
Preferably, the inner winding core support column is in threaded connection with the liquid injection pipe.
Preferably, a sealing ring is arranged between the inner rolling core support post and the liquid injection pipe.
Preferably, the outer winding core support and the inner winding core support are both cylindrical structures.
Preferably, a manual knob is arranged on the part extending from the top cover.
The manual knob is convenient for manual operation to rotate the inner winding core support, and then the position relation between the inner winding core support and the outer winding core support is adjusted, so that the inner flow through hole and the outer flow through hole are overlapped or staggered, and the operation is convenient and reliable.
Optimally, a liquid injection position piece and a closed position piece are arranged on the top cover;
the part that stretches out from the top cap is provided with the pointer, and when interior book core pillar rotated to the pointer and points to annotate liquid position spare, the internal flow through-hole overlapped the link up with the outflow through-hole, and when interior book core pillar rotated to the pointer and points to closed position spare, the internal flow through-hole was sealed with the outflow through-hole dislocation.
The setting of pointer, notes liquid position spare, closed position spare can direct-viewing instruct interior book core pillar to be in and annotate liquid position or closed position, and then rolls up core pillar position in convenient operator's accurate regulation, realizes quick adjustment.
Optimized, outflow through-hole equals with inner flow through-hole quantity, and when interior book core pillar slided for outer book core pillar, all inner flow through-holes can overlap or the dislocation with the outflow through-hole that corresponds simultaneously.
Optimally, the outer flow through holes are uniformly distributed on the side wall of the outer winding core support column in an array mode, and the distance between every two adjacent outer flow through holes is equal;
the inner flow through holes are uniformly distributed on the side wall of the inner roll core support column in an array mode, and the distance between every two adjacent inner flow through holes is equal.
Preferably, the outer flow through hole and the inner flow through hole are round holes.
The utility model has the advantages that:
1. the utility model provides a but cylinder battery of secondary fluid infusion when the in-service use, at first the position of roll up the core pillar between for outer roll core pillar in the adjustment, so that inner flow through-hole and outflow through-hole overlap and link up, take apart the sealing member, from annotating the inside notes liquid of liquid mouth to the interior roll core pillar, electrolyte then gets into interior roll core pillar, and through the inner flow through-hole, outflow through-hole flows to rolling up the core and infiltrating to rolling up the core, it is complete to roll up the core infiltration, it makes it take place to slide for outer roll core pillar to adjust interior roll core pillar, slide to inner flow through-hole and outflow through-hole dislocation when sealing, then the inside passageway to rolling up the core of interior roll core pillar is blocked, continue to pour into electrolyte into, pour into the completion after, reclose the sealing member. After the core electrolyte is consumed, the position of the inner core support column can be adjusted to enable the inner flow through hole to be communicated with the outer flow through hole in an overlapped mode, the electrolyte inside the inner core support column is released, and the secondary liquid supplementing operation inside the inner core support column is completed. Compared with the prior art, the battery can realize secondary liquid supplementing operation so as to solve the technical problems of insufficient electrolyte, battery failure and performance reduction caused by electrolyte consumption in the use process of the battery in the later period of the battery.
2. The manual knob is convenient for manual operation to rotate the inner winding core support, and then the position relation between the inner winding core support and the outer winding core support is adjusted, so that the inner flow through hole and the outer flow through hole are overlapped or staggered, and the operation is convenient and reliable.
3. The setting of pointer, notes liquid position spare, closed position spare can direct-viewing instruct interior book core pillar to be in and annotate liquid position or closed position, and then rolls up core pillar position in convenient operator's accurate regulation, realizes quick adjustment.
Drawings
Fig. 1 is a cross-sectional view of a cylindrical battery capable of secondary fluid infusion according to an embodiment of the present invention during fluid infusion;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a cross-sectional view of a cylindrical battery capable of secondary fluid infusion according to an embodiment of the present invention when sealed;
FIG. 4 is a top view of FIG. 3;
wherein,
a shell-1, a top cover-11, a liquid injection position part-111 and a closed position part-112;
an outer winding core pillar-2 and an outer flow through hole-21;
a roll core-3;
an inner winding core pillar-4 and an inner flow through hole-41;
a liquid injection port-5;
a sealing member-6;
a liquid injection pipe-7;
a sealing ring-8;
a manual knob-9;
pointer-10.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, 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 figure 1, the cylindrical battery capable of secondary liquid supplement comprises a shell 1, an outer winding core support 2, a winding core 3, an inner winding core support 4, a liquid injection port 5, a sealing piece 6, a liquid injection pipe 7, a sealing ring 8, a manual knob 9 and a pointer 10.
With reference to fig. 1 and 2, the housing 1 is a cylindrical structure with an open top, and a top cover 11 is disposed on the top of the housing 1; the middle position of the top cover 11 is provided with a hole, the top cover 11 is of a circular ring plate-shaped structure, and in the embodiment, the top cover 11 is welded on the top of the shell 1.
As shown in fig. 1, a cylindrical outer winding core support 2 is provided in the housing 1, preferably, the outer winding core support 2 is cylindrical, the outer winding core support 2 is coaxial with the housing 1, further, the outer winding core support 2 is fixedly provided in the housing 1, if the outer winding core support 2 is provided in the housing 1 by welding, a winding core 3 is provided outside the outer winding core support 2; the core 3 is wound outside the outer core leg 2.
As shown in fig. 1, the side wall of the outer winding core pillar 2 is provided with an outer flow through hole 21; the inner side of the outer winding core support 2 is slidably provided with a cylindrical inner winding core support 4, the inner winding core support 4 is of a cylindrical structure, and the outer winding core support 2 and the inner winding core support 4 have stable performance and are not easy to react with electrolyte. The inner core support post 4 has an inner flow hole 41 in a side wall thereof, and the inner flow hole 41 can be overlapped with or displaced from the outer flow hole 21 when the inner core support post 4 slides with respect to the outer core support post 2.
As shown in fig. 1 and 3, the number of the outer flow through holes 21 is equal to the number of the inner flow through holes 41, and when the inner winding core support 4 slides with respect to the outer winding core support 2, all the inner flow through holes 41 can be simultaneously overlapped with or displaced from the corresponding outer flow through holes 21.
As shown in fig. 1, the outflow through holes 21 are uniformly distributed on the sidewall of the outer winding core support 2 in an array, and the distance between two adjacent outflow through holes 21 is equal; the inner flow through holes 41 are uniformly distributed on the side wall of the inner roll core pillar 4 in an array manner, and the distance between every two adjacent inner flow through holes 41 is equal. The outer flow through hole 21 and the inner flow through hole 41 are both round holes.
The top end of the inner roll core support column 4 extends out from the top cover 11, or as shown in fig. 1, the top end of the inner roll core support column 4 is provided with a liquid injection pipe 7, the top end of the liquid injection pipe 7 extends out from the top cover 11, the end part of the component extending out from the top cover 11 is provided with a liquid injection port 5, and a sealing piece 6 is arranged at the liquid injection port 5. Sealing member 6 can adopt and seal the gasket, seals the gasket and be circular sheet structure, and during the actual installation, seal the gasket and fill in and annotate 5 departments of liquid mouth and can realize sealing, perhaps, sealing member 6 also can adopt cork or rubber buffer isotructure.
As shown in FIG. 1, in the present embodiment, the pouring spout 7 is provided. The inner winding core support column 4 is connected with the liquid injection pipe 7 through threads. Further, it is provided with sealing washer 8, specific to roll up between core pillar 4 and the notes liquid pipe 7 in, the lower extreme of notes liquid pipe 7 sets up the internal thread, and internal thread top position sets up the annular, sealing washer 8 is arranged in the annular, and 4 tops of interior roll core pillar set up the external screw thread, and the cooperation of interior external screw thread, 4 tops of interior roll core pillar withstand sealing washer 8 in order to realize sealed.
Further, as shown in fig. 1, a manual knob 9 is provided on a part extending from the top cover 11. In this embodiment, the manual knob 9 is fixedly installed on the liquid injection pipe 7, and the manual knob 9 is of a circular structure.
Further, as shown in fig. 1 and 2, the top cover 11 is provided with a liquid injection position member 111 and a sealing position member 112; the cross-sectional shapes of the liquid injection position piece 111 and the sealing position piece 112 in this embodiment are both triangular, the liquid injection position piece 111 and the sealing position piece 112 are welded on the top cover 11 or mounted on the top cover 11 through screws, both the liquid injection position piece 111 and the sealing position piece 112 point to the liquid injection pipe 7, a pointer 10 is arranged on a part extending out of the top cover 11, specifically, the pointer 10 is a rectangular block structure, or the pointer 10 is arranged into an arrow block structure with a triangular cross-section, and the pointer 10 is arranged on the liquid injection pipe 7 through welding or screw connection.
As shown in fig. 1 and 2, when the inner core support 4 is rotated until the pointer 10 points to the injection position member 111, the inner flow through hole 41 and the outer flow through hole 21 are overlapped and penetrated, and as shown in fig. 3 and 4, when the inner core support 4 is rotated until the pointer 10 points to the sealing position member 112, the inner flow through hole 41 and the outer flow through hole 21 are sealed in a staggered manner.
The working principle is as follows:
as shown in fig. 1 and 2, but the utility model provides a but cylinder battery of secondary fluid infusion when the practical application, at first adjust interior book core pillar 4 for the position between the outer core pillar 2 of rolling up, so that inner flow through-hole 41 and outer flow through-hole 21 overlap and link up, take apart sealing member 6, from annotating the inside notes liquid of liquid mouth 5 to interior book core pillar 4, electrolyte then gets into interior book core pillar 4, and through inner flow through-hole 41, outer flow through-hole 21 flows to rolling up core 3 and soaks to rolling up core 3, it is complete to roll up core 3 infiltration, as shown in fig. 3, 4, adjust interior book core pillar 4 and make it take place to slide for outer core pillar 2, when sliding to inner flow through-hole 41 and outer flow through-hole 21 dislocation and sealing, then the inside passageway to rolling up core pillar 3 of interior book core pillar 4 is blocked, continue to pour into electrolyte into, pour into the completion back, reclose sealing member 6. After the electrolyte of the winding core 3 is consumed, the position of the inner winding core support column 4 can be adjusted to enable the inner flow through hole 41 to be overlapped and communicated with the outer flow through hole 21, the electrolyte inside the inner winding core support column 4 is released, and the internal secondary liquid supplementing operation is completed. Compared with the prior art, the battery can realize secondary liquid supplementing operation so as to solve the technical problems of insufficient electrolyte, battery failure and performance reduction caused by electrolyte consumption in the use process of the battery in the later period of the battery.
The manual knob 9 is convenient for manual operation to rotate the inner winding core support 4, and further adjusts the position relation between the inner winding core support 4 and the outer winding core support 2, so that the inner flow through hole 41 and the outer flow through hole 21 are overlapped or staggered, and the operation is convenient and reliable.
The setting of pointer 10, notes liquid position spare 111, closed position spare 112 can direct-viewing instruction interior book core pillar 4 be in annotating liquid position or closed position, and then make things convenient for the operator to accurately adjust interior book core pillar 4 position, realizes quick adjustment.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a but cylinder battery of secondary fluid infusion which characterized in that: comprises a shell (1), wherein the top of the shell (1) is provided with a top cover (11);
a cylindrical outer winding core support post (2) is arranged in the shell (1), and a winding core (3) is arranged on the outer side of the outer winding core support post (2);
an outer flow through hole (21) is formed in the side wall of the outer winding core support column (2);
the inner side of the outer winding core support column (2) is provided with a cylindrical inner winding core support column (4) in a sliding way, the side wall of the inner winding core support column (4) is provided with an inner flow through hole (41), and when the inner winding core support column (4) slides relative to the outer winding core support column (2), the inner flow through hole (41) can be overlapped with or dislocated with the outer flow through hole (21);
interior book core pillar (4) have notes liquid mouth (5), notes liquid mouth (5) stretch out top cap (11), notes liquid mouth (5) department sets up sealing member (6).
2. The cylindrical battery capable of secondary fluid infusion according to claim 1, wherein: the top end of the inner winding core pillar (4) extends out of the top cover (11);
or the top end of the inner winding core support post (4) is provided with an injection pipe (7), and the top end of the injection pipe (7) extends out of the top cover (11);
the pouring port (5) is provided at the end of the member projecting from the top cover (11).
3. The cylindrical battery capable of secondary fluid infusion according to claim 2, wherein: the inner winding core support post (4) is connected with the liquid injection pipe (7) through threads.
4. The cylindrical battery capable of secondary fluid infusion according to claim 3, wherein: and a sealing ring (8) is arranged between the inner winding core support post (4) and the liquid injection pipe (7).
5. The cylindrical battery capable of secondary fluid infusion according to claim 1, wherein: the outer winding core support column (2) and the inner winding core support column (4) are both of cylindrical structures.
6. The cylindrical battery capable of secondary fluid infusion according to claim 5, wherein: a manual knob (9) is arranged on a part extending out of the top cover (11).
7. The cylindrical battery capable of secondary fluid infusion according to claim 5, wherein: the top cover (11) is provided with a liquid injection position piece (111) and a closed position piece (112);
the pointer (10) is arranged on a part extending out of the top cover (11), when the inner winding core support (4) rotates until the pointer (10) points to the liquid injection position piece (111), the inner flow through hole (41) is overlapped and communicated with the outer flow through hole (21), and when the inner winding core support (4) rotates until the pointer (10) points to the closed position piece (112), the inner flow through hole (41) and the outer flow through hole (21) are sealed in a staggered mode.
8. The cylindrical battery capable of secondary fluid infusion according to claim 1, wherein: the number of the outer flow through holes (21) is equal to that of the inner flow through holes (41), and when the inner winding core support column (4) slides relative to the outer winding core support column (2), all the inner flow through holes (41) can be overlapped or dislocated with the corresponding outer flow through holes (21) at the same time.
9. The cylindrical battery capable of secondary fluid infusion according to claim 8, wherein: the outer flow through holes (21) are uniformly distributed on the side wall of the outer winding core support column (2) in an array mode, and the distance between every two adjacent outer flow through holes (21) is equal;
the inner flow through holes (41) are uniformly distributed on the side wall of the inner roll core pillar (4) in an array mode, and the distance between every two adjacent inner flow through holes (41) is equal.
10. The cylindrical battery capable of secondary fluid infusion according to claim 1, wherein: the outer flow through hole (21) and the inner flow through hole (41) are round holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121480313.3U CN214957096U (en) | 2021-06-29 | 2021-06-29 | Cylindrical battery capable of supplementing liquid for second time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121480313.3U CN214957096U (en) | 2021-06-29 | 2021-06-29 | Cylindrical battery capable of supplementing liquid for second time |
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| CN214957096U true CN214957096U (en) | 2021-11-30 |
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| CN202121480313.3U Active CN214957096U (en) | 2021-06-29 | 2021-06-29 | Cylindrical battery capable of supplementing liquid for second time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117117341A (en) * | 2023-07-26 | 2023-11-24 | 广东精锐精密工业有限公司 | secondary battery |
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2021
- 2021-06-29 CN CN202121480313.3U patent/CN214957096U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117117341A (en) * | 2023-07-26 | 2023-11-24 | 广东精锐精密工业有限公司 | secondary battery |
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