CN203406179U - Lithium ion capacitor - Google Patents
Lithium ion capacitor Download PDFInfo
- Publication number
- CN203406179U CN203406179U CN201320484104.5U CN201320484104U CN203406179U CN 203406179 U CN203406179 U CN 203406179U CN 201320484104 U CN201320484104 U CN 201320484104U CN 203406179 U CN203406179 U CN 203406179U
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- China
- Prior art keywords
- lithium
- negative pole
- ion capacitor
- pole
- barrier film
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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
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- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The utility model relates to a lithium ion capacitor, comprising an anode, a cathode and a diaphragm. The diaphragm is positioned between the anode and the cathode to isolate the anode from the cathode; the anode comprises a porous metal foil and charcoal material covering the porous metal foil; the cathode comprises a porous aluminium foil and lithium intercalation material covering the porous aluminium foil; and lithium is pre-inserted in the lithium intercalation material. Lithium is pre-inserted in the cathode of the lithium ion capacitor, which is suitable for batch production, and high energy density, power density and work voltage are achieved..
Description
Technical field
Key in herein technical field and describe paragraph.The utility model relates to a kind of electrochemical capacitor, especially a kind of lithium-ion capacitor.
Background technology
Lithium-ion capacitor has the structure that Li-Ion rechargeable battery negative pole and double electric layer capacitor positive pole combine.At present, the performance of lithium-ion capacitor has possessed the electric property that surmounts double electric layer capacitor, especially aspect energy density.Lithium-ion capacitor can reduce the capacity of main power source, reduces the size of whole system, can be used for the fields such as uninterrupted power supply(ups), construction implement, lathe, industrial robot, automobile, and application prospect is very wide.
Chinese patent literature CN201110141359.7 has announced a kind of lithium-ion capacitor of manufacturing the method for lithium-ion capacitor and utilizing its manufacture.The method of this manufacture lithium-ion capacitor comprises: on a surface of barrier film, form lithium film; This lithium film is contacted with negative pole, and utilize the barrier film being placed in to be therebetween arranged alternately negative pole and anodal to form electrode unit; And this electrode unit and electrolyte are sealing in housing, and lithium ion is doped into negative pole in advance from lithium film.This mode exploitativeness is poor, is not suitable for volume production.
Summary of the invention
The purpose of this utility model is to provide the pre-embedding lithium of a kind of negative pole, is suitable for volume production, has the lithium-ion capacitor of higher energy density, power density and operating voltage.
The technical scheme that realizes the utility model object is a kind of lithium-ion capacitor, comprise positive pole, negative pole and barrier film, described barrier film is between described positive pole and negative pole and separate described positive pole and negative pole, described positive pole is comprised of multicellular metal foil and the Carbon Materials being coated on described multicellular metal foil, described negative pole is comprised of porous aluminium foil and the intercalation materials of li ions being coated on described porous aluminium foil, is embedded with in advance lithium metal on described intercalation materials of li ions.
Above-mentioned lithium metal and described negative pole short circuit and be encapsulated in airtight packing.
Above-mentioned lithium-ion capacitor also comprises housing and be filled in the electrolyte in described housing, and described negative pole, ground floor barrier film, positive pole and second layer barrier film are cascading and are rolled into web-like and be arranged in described housing.
Above-mentioned lithium-ion capacitor also comprises positive terminal and negative terminal; Described positive terminal is connected with positive pole, and described negative terminal is connected with negative pole.
The utlity model has positive effect:
(1) lithium-ion capacitor of the present utility model has the positive pole of high-specific surface area material with carbon element, is easy to lithium and embeds and take off the negative pole of embedding and contain the electrolytical organic electrolyte of lithium salts.Embedding lithium in advance before negative pole is used, before charging, both positive and negative polarity voltage is more than or equal to 2.2V, and anodal and negative pole is made by netted multicellular metal foil, is convenient to production.This lithium-ion capacitor has higher operating voltage, energy density and power density, and without potential safety hazard, its industrialization implementation is simple, and easy operating, is conducive to large batch of large-scale production.
(2) in the assembling process of product, by lithium metal and negative pole short circuit and be encapsulated in airtight packing, lithium metal can be spontaneously with negative pole on intercalation materials of li ions carry out the behavior of negative pole embedding lithium, be conducive to large batch of production.
Accompanying drawing explanation
Fig. 1 is the structural representation of lithium-ion capacitor of the present utility model.
Fig. 2 is the generalized section of the A-A face of the lithium-ion capacitor in Fig. 1.
The mark of above-mentioned accompanying drawing is as follows:
Positive pole 1, multicellular metal foil 11, Carbon Materials 12,
Negative pole 2, porous aluminium foil 21, intercalation materials of li ions 22,
Embodiment
(embodiment 1)
See Fig. 2, the lithium-ion capacitor of the present embodiment, comprises positive pole 1, negative pole 2, barrier film 3, housing, electrolyte, positive terminal 5 and negative terminal 6.Barrier film 3 anodal 1 and negative pole 2 between and separate anodal 1 and state positive terminal 5 with negative pole 2 and be connected with anodal 1, negative terminal 6 is connected with negative pole 2.
Still see Fig. 2, anodal 1 forms (Carbon Materials 12 can be active carbon powder, activated carbon fiber, carbon nanotube etc.) by multicellular metal foil 11 and the Carbon Materials 12 being coated on multicellular metal foil 11.Negative pole 2 is by porous aluminium foil 21 and be coated on intercalation materials of li ions 22 on porous aluminium foil 21 and form that (intercalation materials of li ions 22 can be can embedding lithium metal oxide or carbonaceous intercalation materials of li ions, can embedding lithium metal oxide can be Li-Ti oxide Li
4ti
5o
12, WO
2or MoO
2deng, carbonaceous intercalation materials of li ions can be graphite, MCMB or intermediate-phase carbon fiber etc.).
In the assembling process of product, lithium metal 4 is with negative pole 2 short circuits and be encapsulated in airtight packing.Lithium metal 4 can be spontaneously with negative pole 2 on intercalation materials of li ions 22 carry out the behavior of negative pole embedding lithium.Thereby make to be embedded with in advance on negative pole 2 lithium metal 4.
See Fig. 1, negative pole 2, ground floor barrier film 3, positive pole 1 and second layer barrier film 3 are cascading and are rolled into web-like and be arranged in housing.Electrolyte is to be filled in to contain the electrolytical organic electrolyte of lithium salts in housing.
Lithium-ion capacitor of the present utility model is not limited to the various embodiments described above.Obviously, above-described embodiment is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And these belong to apparent variation that spirit of the present utility model extended out or change still among protection range of the present utility model.
Claims (4)
1. a lithium-ion capacitor, comprise positive pole (1), negative pole (2) and barrier film (3), described barrier film (3) is positioned between described positive pole (1) and negative pole (2) and separates described positive pole (1) and negative pole (2), it is characterized in that: described positive pole (1) is comprised of multicellular metal foil (11) and the Carbon Materials (12) that is coated on described multicellular metal foil (11), described negative pole (2) is comprised of porous aluminium foil (21) and the intercalation materials of li ions (22) that is coated on described porous aluminium foil (21), is embedded with in advance lithium metal (4) on described intercalation materials of li ions (22).
2. according to a kind of lithium-ion capacitor claimed in claim 1, it is characterized in that: described lithium metal (4) and described negative pole (2) short circuit and be encapsulated in airtight packing.
3. according to a kind of lithium-ion capacitor described in claim 1 or 2, it is characterized in that: also comprise housing and be filled in the electrolyte in described housing, described negative pole (2), ground floor barrier film (3), anodal (1) and second layer barrier film (3) are cascading and are rolled into web-like and be arranged in described housing.
4. according to a kind of lithium-ion capacitor claimed in claim 3, it is characterized in that: also comprise positive terminal (5) and negative terminal (6); Described positive terminal (5) is connected with anodal (1), and described negative terminal (6) is connected with negative pole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484104.5U CN203406179U (en) | 2013-08-08 | 2013-08-08 | Lithium ion capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484104.5U CN203406179U (en) | 2013-08-08 | 2013-08-08 | Lithium ion capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406179U true CN203406179U (en) | 2014-01-22 |
Family
ID=49942103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320484104.5U Expired - Lifetime CN203406179U (en) | 2013-08-08 | 2013-08-08 | Lithium ion capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935835A (en) * | 2017-04-24 | 2017-07-07 | 陕西科技大学 | A kind of high electrochemical performance tungsten dioxide/molybdenum trioxide lithium ion battery negative material and preparation method thereof |
-
2013
- 2013-08-08 CN CN201320484104.5U patent/CN203406179U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935835A (en) * | 2017-04-24 | 2017-07-07 | 陕西科技大学 | A kind of high electrochemical performance tungsten dioxide/molybdenum trioxide lithium ion battery negative material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200220 Address after: 315112 199 Yinzhou District Road, five town, Yinzhou District, Ningbo, Zhejiang Patentee after: NINGBO CRRC NEW ENERGY TECHNOLOGY Co.,Ltd. Address before: No. 47, Qingyang North Road, Tianning District, Changzhou City, Jiangsu Province Patentee before: JIANGSU JISHENG XINGTAI NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |
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| CX01 | Expiry of patent term |