CN207517535U - A kind of cylindrical lithium ion capacitor - Google Patents
A kind of cylindrical lithium ion capacitor Download PDFInfo
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- CN207517535U CN207517535U CN201721402873.0U CN201721402873U CN207517535U CN 207517535 U CN207517535 U CN 207517535U CN 201721402873 U CN201721402873 U CN 201721402873U CN 207517535 U CN207517535 U CN 207517535U
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- cathode
- anode
- lithium
- ion capacitor
- core
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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
- Y02E60/13—Energy storage using capacitors
Abstract
The utility model discloses a kind of cylindrical lithium ion capacitors, the cylindrical housing of rubber plug is provided with including top, core is placed in housing, core bottom is provided with insulation spacer, core is wound to obtain by the anode and cathode being spaced, diaphragm is provided between adjacent anode and cathode and close to core central side, which further includes the positive pole ear and negative lug for connecting anode and cathode respectively, and the case inside is fitted with one layer of lithium metal.The utility model carries out lithium metal external, lithium metal is fitted in the inside of cylindrical shell, using lithium metal and housing adhesion as third electrode, the mode that third electrode is carried out to forced electric discharge or short circuit with cathode is attached, it realizes pre- embedding lithium, and pre- embedding lithium speed can be accelerated, while avoid lithium metal in winding process to the high-precision requirement of equipment, technology difficulty is reduced, is conducive to the mass production of lithium-ion capacitor.
Description
Technical field
The utility model is related to a kind of electrochemical energy storing device, more particularly to a kind of cylindrical lithium ion capacitor device.
Background technology
Lithium-ion capacitor（Lithium-ion capacitor）It is the energy storage with reference to lithium ion battery and ultracapacitor
Device, relative to ultracapacitor, lithium-ion capacitor has higher energy density, and with extremely low leakage current and certainly
Electric discharge, high temperature resistant floating charge performance are more excellent.Relative to lithium ion battery, lithium-ion capacitor cryogenic property more preferably, has simultaneously
There is better high rate performance, have broad prospects in fields such as electronic device, uninterruptible power supply, AGV power supplys.
There are mainly three types of existing lithium-ion capacitors：Rectangular, cylinder and Soft Roll, wherein cylinder use the structure of winding,
Needed during electric core winding place lithium metal, it is higher to equipment requirement, especially to the placement precision of lithium piece require compared with
Height, production technology is complicated, and production cost is difficult to decline, while the pre- embedding lithium time is longer.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of new cylindrical lithium ion capacitor, the cylinder lithium
The pre- embedding lithium effect of ionistor is good, and the pre- embedding lithium time is short.
For solution more than technical problem, cylindrical lithium ion capacitor described in the utility model is provided with rubber plug including top
Cylindrical housing, be placed with core in housing, core bottom is provided with insulation spacer, and core is by the anode that is spaced and negative
Pole winds to obtain, and diaphragm is provided between adjacent anode and cathode and close to core central side, cylindrical lithium ion electricity
Container further includes the positive pole ear and negative lug for connecting anode and cathode respectively, and the case inside is fitted with one layer of metal
Lithium.
Further, the housing is box hat or nickel plated steel shell.
Further, the thickness of the lithium metal is 10 ~ 300 μm.
Further, the anode includes anode porous current collector and the positive electrode coating layer coated in its surface, described negative
Pole includes cathode porous current collector and the cathode dope layer coated in its surface.
Further, the positive pole ear and negative lug are led to respectively with anode porous current collector, cathode porous current collector
It crosses and rivets or be welded to connect.
Further, the width of the cathode dope layer is bigger 2 ~ 4mm than the width of the anode overbrushing bed of material, the width of the diaphragm
Degree is bigger 2 ~ 4mm than the width of cathode dope layer.
The utility model carries out lithium metal external, lithium metal is fitted in the inside of cylindrical shell, using lithium metal and shell
As third electrode, the mode that third electrode is carried out to forced electric discharge or short circuit with cathode is attached, realizes pre- for body adhesion
Embedding lithium, and pre- embedding lithium speed can be accelerated, while lithium metal is avoided, to the high-precision requirement of equipment, to reduce work in winding process
Skill difficulty is conducive to the mass production of lithium-ion capacitor.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the utility model.
In figure：1- lithium metals；2- diaphragms；3- positive electrode coating layers；4- anode porous current collectors；5- negative lugs；6- anodes
Lug；7- rubber plugs；8- housings；9- cathode dope layers；10- cathode porous current collectors；11- insulation spacers.
Specific embodiment
With reference to embodiment and with reference to attached drawing, the utility model is further described.The utility model
Implementation be not limited to the following examples, the accommodation in any form made to the utility model or changed all should be in this reality
With in novel protection domain.
Embodiment 1：
As shown in Figure 1, the utility model includes hollow cylindrical housing 8 made of steel or nickel-plated steel, the housing 8
Top be provided with rubber plug 7, play the role of insulation and sealing, rubber plug 7 has certain deformability, after sealing, prevents
Electrolyte leaks.Housing 8 is internally provided with core, and core bottom is provided with insulation spacer 11, can prevent the short circuit of positive and negative anodes.
Core uses winding-structure, with one layer of diaphragm 2 of most inner side（Intermediate there are one wireline reels, for the winding of core, do not show in Fig. 1
Go out, but should understand the presence of the wireline reel）Starting, then be outward successively cathode, time of diaphragm 2, anode, diaphragm 2, cathode ...
Sequence arranges, and outermost layer is cathode.Anode includes anode porous current collector 4 and the positive electrode coating layer 3 coated in its both side surface, bears
Pole includes cathode porous current collector 10 and the cathode dope layer 9 coated in its both sides（Exception：It is only more comprising cathode in outer layer cathode
Hole collector and the additional paint layer on the inside of the cathode porous current collector）.Anode porous current collector 4 using by machinery or
Porous foil made from the mode of person's corrosion, material can be aluminium foil, stainless steel foil or nickel foil etc..Cathode porous current collector
10 porous foil foils processed by the way of by laser, machinery either etching can be copper foil or stainless
Steel foil.
The lithium metal 1 that a circle thickness is 10 ~ 300 μm is fitted with by adherency in the inside of housing 8, the amount of lithium metal passes through
Theoretical calculation obtains, and theoretical calculation is obtained according to the amount of the active material of negative plate.
The lithium-ion capacitor further includes positive pole ear 6 and negative lug 5, and positive pole ear 6 and negative lug 5 respectively with
Anode porous current collector 4, cathode porous current collector 10 are by riveting or being welded to connect.In addition, the width ratio of cathode dope layer 9 is just
Big 2 ~ the 4mm of width of pole dope layer 3, the width of the diaphragm 2 are bigger 2 ~ 4mm than the width of cathode dope layer 9.Width described herein
Degree is referred to according to length upper and lower in Fig. 1.Lithium metal 1,1 ' with negative lug 5 is connect after fluid injection sealing, passes through charge and discharge
Equipment is discharged or directly by 5 short circuit of lithium metal 1,1 ' and negative lug, under the action of potential difference, lithium metal becomes
Lithium ion completes the pre- embedding lithium to cathode.
I.e. lithium metal 1,1 ' is adhered on housing 8, and housing 8 is used as third electrode, housing 8 and cathode are discharged or
Short circuit is carried out, under the action of potential difference, lithium metal can become pre- embedding lithium of the lithium ion completion to cathode.
Claims (6)
1. a kind of cylindrical lithium ion capacitor is provided with the cylindrical housing of rubber plug including top, volume is placed in housing
Core, core bottom are provided with insulation spacer, and core is wound to obtain by the anode and cathode being spaced, adjacent anode and cathode it
Between and core central side is provided with diaphragm, which further includes is connecting anode and cathode just respectively
Pole lug and negative lug, it is characterised in that：The case inside is fitted with one layer of lithium metal.
2. cylindrical lithium ion capacitor according to claim 1, it is characterised in that：The housing is box hat or nickel plated steel shell.
3. cylindrical lithium ion capacitor according to claim 1, it is characterised in that：The thickness of the lithium metal is 10 ~ 300 μ
m。
4. cylindrical lithium ion capacitor according to claim 1, it is characterised in that：The anode includes anode porous current collector
And the positive electrode coating layer coated in its surface, the cathode include cathode porous current collector and the cathode coating coated in its surface
Layer.
5. cylindrical lithium ion capacitor according to claim 4, it is characterised in that：The positive pole ear and negative lug difference
With anode porous current collector, cathode porous current collector by riveting or being welded to connect.
6. cylindrical lithium ion capacitor according to claim 4, it is characterised in that：The width of the cathode dope layer compares anode
Big 2 ~ the 4mm of width of the overbrushing bed of material, the width of the diaphragm are bigger 2 ~ 4mm than the width of cathode dope layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721402873.0U CN207517535U (en) | 2017-10-27 | 2017-10-27 | A kind of cylindrical lithium ion capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721402873.0U CN207517535U (en) | 2017-10-27 | 2017-10-27 | A kind of cylindrical lithium ion capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207517535U true CN207517535U (en) | 2018-06-19 |
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ID=62535723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721402873.0U Active CN207517535U (en) | 2017-10-27 | 2017-10-27 | A kind of cylindrical lithium ion capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN207517535U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786841A (en) * | 2018-12-13 | 2019-05-21 | 中国科学院电工研究所 | A kind of preparation method of lithium ion electrochemical energy storage device |
| CN111524713A (en) * | 2020-04-23 | 2020-08-11 | 西南科技大学 | Cylindrical lithium ion capacitor and preparation method thereof |
| CN112103554A (en) * | 2020-08-06 | 2020-12-18 | 双登集团股份有限公司 | Three-electrode repairable lithium ion battery |
| CN113054162A (en) * | 2021-03-15 | 2021-06-29 | 蜻蜓实验室(深圳)有限公司 | Lithium ion battery and lithium ion battery pack |
| CN113078364A (en) * | 2021-03-29 | 2021-07-06 | 中南大学 | Manufacturing method of high-energy-density aluminum-shell lithium ion battery |
-
2017
- 2017-10-27 CN CN201721402873.0U patent/CN207517535U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786841A (en) * | 2018-12-13 | 2019-05-21 | 中国科学院电工研究所 | A kind of preparation method of lithium ion electrochemical energy storage device |
| CN109786841B (en) * | 2018-12-13 | 2020-12-15 | 中国科学院电工研究所 | Preparation method of lithium ion electrochemical energy storage device |
| CN111524713A (en) * | 2020-04-23 | 2020-08-11 | 西南科技大学 | Cylindrical lithium ion capacitor and preparation method thereof |
| CN112103554A (en) * | 2020-08-06 | 2020-12-18 | 双登集团股份有限公司 | Three-electrode repairable lithium ion battery |
| CN113054162A (en) * | 2021-03-15 | 2021-06-29 | 蜻蜓实验室(深圳)有限公司 | Lithium ion battery and lithium ion battery pack |
| CN113078364A (en) * | 2021-03-29 | 2021-07-06 | 中南大学 | Manufacturing method of high-energy-density aluminum-shell lithium ion battery |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211215 Address after: 201102 room 288, floor 2, building 8, No. 320, Donglan Road, Minhang District, Shanghai Patentee after: Shanghai Shanrong New Energy Technology Co.,Ltd. Address before: 314200 room 201-2, floor 2, Huayuan Building, Pinghu Economic and Technological Development Zone, Jiaxing City, Zhejiang Province (next to yimaisheng shopping plaza at the intersection of Hongjian road and Pingli Road) Patentee before: ZHEJIANG WINCREAT NEW ENERGY Co.,Ltd. |