CN1369925A - High-energy accumlator with nano active carbone fibres (CNT) electrode - Google Patents
High-energy accumlator with nano active carbone fibres (CNT) electrode Download PDFInfo
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- CN1369925A CN1369925A CN02110117A CN02110117A CN1369925A CN 1369925 A CN1369925 A CN 1369925A CN 02110117 A CN02110117 A CN 02110117A CN 02110117 A CN02110117 A CN 02110117A CN 1369925 A CN1369925 A CN 1369925A
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- carbon fiber
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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
Abstract
The invention relates to a high-energy accumulator of active nano carbon fiber belonging to technique of accumulator. It is composed of battery jar, capping, electrolyte, positive and negative polar plates, diaphragm and positve and negative electrodes. The positive polar plate consists of grating of aluminium plate and layer of active nano carbon fiber. The negative polar plate consists of grating of copper plate and layer of active nano carbon fiber. Diameter of the carbon fiber is 20-300nm. Spacing intervals of each group of positive, negative polar plates and diaphragm are small so as to provide large capacity. It is Equivalent to parallel connectino between the large capacity and accumulator. The diaphragm is prepared by use of macromolecular non-woven fabric with high dielectric strength.
Description
Technical field
The invention belongs to the electrochemical storage cell technical field, a kind of active nano carbon fiber (CNT) electrode high-energy battery of more clearly saying so.
Background technology
Since Plante invention lead accumulator in 1860, people are developmental research in the electrochemistry scope mainly, has made continual effort, technically obtains continuous progress.
But existing storage battery still has many defectives and deficiency.One of them is that the charging interval is long, has seriously limited the practical application of storage battery.Past, because the specific area of pole plate is little, can only adopt chemical method to charge for a long time, can not adopt high current charge-discharge.Otherwise during large current charge, pole plate easily produces Jiao Erre and is used for decomposition water, reduces its useful life, even causes thermal runaway, makes battery be out of shape, ftracture and lose efficacy.During heavy-current discharge, also be attended by thermal effect, easily cause voltage to reduce, the capacity of battery also reduces with the increase of discharging current.In the actual charging interval of existing storage battery, want at the soonest then to reach more than 8 hours slowly more than 30 minutes.Wherein two be that specific energy is low, cause its weight too big, too heavy, in use have inconvenience more.This is the one of the main reasons that motor vehicle can not be popularized at present.The specific energy of existing lead accumulator generally has only 30～40Wh/kg.This shortcoming has limited the further expansion of its range of application greatly, greatly reduces the payload of tool movement such as automobile, railway locomotive, passenger vehicle, aircraft, naval vessel, tank and equipment and effective energy consumption.
Purpose of the present invention just is to overcome above-mentioned shortcoming and defect, provides a kind of and can adopt high current charge-discharge, can shorten the charging interval greatly; The specific energy height, weight reduces greatly, thereby brings many convenience, energy saving, active nano carbon fiber (CNT) the electrode high-energy battery that has wide range of applications.
Summary of the invention
In order to achieve the above object, active nano carbon fiber of the present invention (CNT) electrode high-energy battery by battery case, be fastened on groove lid on the battery case, be filled in electrolyte in the battery case, the positive and negative electrode that is installed in positive/negative plate in the battery case and barrier film thereof, is connected with positive/negative plate respectively and is installed in outside the groove lid constituted.Positive plate is bonded in its surperficial active nano carbon fiber layer by aluminium sheet grid and spray and constitutes, and negative plate is bonded in its surperficial active nano carbon fiber layer by copper coin grid and spray and constitutes.
The active nano carbon fiber itself has quantum size effect, small-size effect, skin effect and macro quanta tunnel effect.It has great specific area, high activity and porosity, the radiating efficiency height, and diffusion rate is big.Even, also have only very little current density by very big electric current.Therefore, can not produce Jiao Erre by very big charging and discharging currents by the positive and negative pole plate of its making, no thermal effect is followed.So, shortened the charging interval greatly.The present invention adopts the big electric current quick charge of physical method, adopts the long-time little current low voltage of chemical method to discharge at a slow speed, and is just right.
The active nano carbon fiber diameter of active nano carbon fiber layer is 20～80nm, and its length is 200～300nm.The active nano carbon fiber of this size is active big, and specific area is big, and it is best to be used to make positive and negative pole plate effect.
Each group positive/negative plate and barrier film thereof all have makes it become the little spacing of big electric capacity.Be equivalent to this big electric capacity in parallel with battery.Barrier film is by the macromolecule nonwoven fabrics preparation of high insulation resistance, and its size is identical with the battery case inside dimension.This structure has the characteristic of farad level electric capacity and the characteristic of high power battery simultaneously, and its equivalent electric circuit is equivalent to the big electric capacity of farad level and a high power battery parallel connection.
From to the analysis of this equivalent electric circuit as seen: during the instantaneous time discharge, electric capacity has advance angle, and at first discharge can be accepted the needs of heavy-current discharge.During long-time the discharge, battery can discharge at a slow speed, solves long characteristics.This moment, total discharging current equaled electric capacity and battery discharge current sum.During charging, electric capacity at first charges, and can prevent that electric current is excessive and explodes.This moment, total charging current equaled electric capacity and battery charge sum, was equivalent to external circuit a plurality of absorption electric capacity in parallel.
The operating voltage V of battery and two elements of electric capacity equates, can not produce mutually and flow, and plays complementation.If the electric current of battery is I, its power E=IV then.If the capacity of electric capacity is C, its power W=1/2CV then
2So, gross energy P=E+W, real is the two elements sum.Therefore, its gross energy substantially exceeds battery or single electric capacity.Overall weight alleviates greatly, and specific energy improves greatly.
Task of the present invention comes to this and finishes.
The invention provides and a kind ofly can adopt high current charge-discharge, can shorten the charging interval greatly; The specific energy height, weight reduces greatly, thereby brings many convenience, energy saving, active nano carbon fiber (CNT) the electrode high-energy battery that has wide range of applications.This battery structure has improved the integral energy ratio, and specific energy can reach 300Wh/kg, and power can reach more than the 1000W/kg.Weight greatly alleviates, and discharging current improves greatly.The present invention has electric capacity and battery two specific characters, and big electric capacity is in 8 farads of levels to 3000 farad, and battery capacity is from 150mAH to 200AH.The electric power battery can reach 20000AH, and weight has only 1/11 of lead accumulator, volume have only its 1/6, the charging interval has only 90 seconds the soonest.It can be widely used in the every field of national economy such as industrial equipment, the vehicles, national defence weapon.
Description of drawings
Fig. 1 is the structural representation of positive/negative plate of the present invention.
Fig. 2 is an equivalent circuit diagram of the present invention.
Shown in Figure 1, positive/negative plate of the present invention is bonded in its surperficial active nano carbon fiber layer 2 by aluminium, copper coin grid 1 and spray respectively and is constituted.The active nano carbon fiber diameter of active nano carbon fiber layer 2 is 20～80nm, and its length is 200～300nm.Each group positive/negative plate and barrier film thereof all have makes it become the little spacing of big electric capacity.
Shown in Figure 2, active nano carbon fiber of the present invention (CNT) electrode high-energy battery 3 is equivalent to a battery E and a big capacitor C parallel connection, its gross energy P=E+W.
Embodiment
Specific embodiments of the invention are as follows:
1. 1 kinds of active nano carbon fibers of embodiment (CNT) electrode high-energy battery.It is made of battery case, groove lid, electrolyte, positive/negative plate and barrier film and positive and negative electrode.Positive plate is made of aluminium sheet grid and active nano carbon fiber layer, and negative plate is made of copper coin grid and active nano carbon fiber layer.Active nano carbon fiber diameter is 20nm, and length is 290nm.Each group positive/negative plate and barrier film thereof all have makes it become the little spacing of big electric capacity.Be equivalent to this big electric capacity in parallel with battery.Barrier film is by the macromolecule nonwoven fabrics preparation of high insulation resistance, and size is with the battery case inside dimension.It can adopt high current charge-discharge, charging interval to shorten to 1/17 of the past.Specific energy is up to 8 times of the lead accumulator in past, and weight reduces greatly.
2. 1 kinds of active nano carbon fibers of embodiment (CNT) electrode high-energy battery belongs to battery technology.It is made of battery case, groove lid, electrolyte, positive/negative plate and barrier film and positive and negative electrode.Positive plate is made of aluminium sheet grid and active nano carbon fiber layer, and negative plate is made of copper coin grid and active nano carbon fiber layer.Active nano carbon fiber diameter is 80nm, and length is 300nm.Surplus with embodiment 1.It can adopt high current charge-discharge, charging interval to shorten to 1/10 of the past.Specific energy is up to 7 times of the lead accumulator in past, and weight reduces greatly.
3. 1 kinds of active nano carbon fibers of embodiment (CNT) electrode high-energy battery belongs to battery technology.It is made of battery case, groove lid, electrolyte, positive/negative plate and barrier film and positive and negative electrode.Positive plate is made of aluminium sheet grid and active nano carbon fiber layer, and negative plate is made of copper coin grid and active nano carbon fiber layer.Active nano carbon fiber diameter is 60nm, and length is 200nm.Surplus with embodiment 1.It can adopt high current charge-discharge, charging interval to shorten to 1/20 of the past.Specific energy is up to 10 times of the lead accumulator in past, and weight reduces greatly.
Claims (4)
1. an active nano carbon fiber (CNT) electrode high-energy battery, it by battery case, be fastened on groove lid on the battery case, be filled in electrolyte in the battery case, the positive and negative electrode that is installed in positive/negative plate in the battery case and barrier film thereof, is connected with positive/negative plate respectively and is installed in outside the groove lid constituted, it is characterized in that said positive plate is bonded in its surperficial active nano carbon fiber layer by aluminium sheet grid and spray and is constituted, negative plate is bonded in its surperficial active nano carbon fiber layer by copper coin grid and spray and is constituted.
2. according to the described active nano carbon fiber of claim 1 (CNT) electrode high-energy battery, it is characterized in that the active nano carbon fiber diameter of said active nano carbon fiber layer is 20～80nm, its length is 200～300nm.
3. according to claim 1 or 2 described active nano carbon fiber (CNT) electrode high-energy batteries, it is characterized in that said each group positive/negative plate and barrier film thereof all have to make it become the little spacing of big electric capacity.
4. according to the described active nano carbon fiber of each claim in the claim 1～3 (CNT) electrode high-energy battery, it is characterized in that the macromolecule nonwoven fabrics preparation of said barrier film by high insulation resistance, its size is identical with the battery case inside dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021101175A CN1140005C (en) | 2002-03-15 | 2002-03-15 | High-energy accumlator with nano active carbone fibres (CNT) electrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021101175A CN1140005C (en) | 2002-03-15 | 2002-03-15 | High-energy accumlator with nano active carbone fibres (CNT) electrode |
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| Publication Number | Publication Date |
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| CN1369925A true CN1369925A (en) | 2002-09-18 |
| CN1140005C CN1140005C (en) | 2004-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021101175A Expired - Fee Related CN1140005C (en) | 2002-03-15 | 2002-03-15 | High-energy accumlator with nano active carbone fibres (CNT) electrode |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100367558C (en) * | 2005-12-22 | 2008-02-06 | 上海交通大学 | Method for lengthening hermetic lead accumulator operation life |
| CN101714662B (en) * | 2009-11-03 | 2012-02-08 | 苏州大学 | Positive plate reinforced lead-acid accumulator |
| RU2469442C1 (en) * | 2009-01-13 | 2012-12-10 | Нокиа Корпорейшн | System for highly efficient conversion and accumulation of energy using carbon nanostructured materials |
| US9308705B2 (en) | 2012-12-03 | 2016-04-12 | Industrial Technology Research Institute | Carbon fiber composite material and method for preparing the same |
| CN108281671A (en) * | 2017-12-28 | 2018-07-13 | 广州倬粤动力新能源有限公司 | Co-extrusion type grid fiber composite line |
| US10272651B1 (en) | 2017-10-18 | 2019-04-30 | Industrial Technology Research Institute | Fiber composite and manufacturing method thereof |
| US10919272B2 (en) | 2019-04-11 | 2021-02-16 | Industrial Technology Research Institute | Fiber composition structure |
| US11027534B2 (en) | 2017-10-18 | 2021-06-08 | Industrial Technology Research Institute | Fiber composite material and manufacturing method thereof |
-
2002
- 2002-03-15 CN CNB021101175A patent/CN1140005C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100367558C (en) * | 2005-12-22 | 2008-02-06 | 上海交通大学 | Method for lengthening hermetic lead accumulator operation life |
| RU2469442C1 (en) * | 2009-01-13 | 2012-12-10 | Нокиа Корпорейшн | System for highly efficient conversion and accumulation of energy using carbon nanostructured materials |
| CN101714662B (en) * | 2009-11-03 | 2012-02-08 | 苏州大学 | Positive plate reinforced lead-acid accumulator |
| US9308705B2 (en) | 2012-12-03 | 2016-04-12 | Industrial Technology Research Institute | Carbon fiber composite material and method for preparing the same |
| US9868275B2 (en) | 2012-12-03 | 2018-01-16 | Industrial Technology Research Institute | Method for preparing carbon fiber composite material |
| US10272651B1 (en) | 2017-10-18 | 2019-04-30 | Industrial Technology Research Institute | Fiber composite and manufacturing method thereof |
| US11027534B2 (en) | 2017-10-18 | 2021-06-08 | Industrial Technology Research Institute | Fiber composite material and manufacturing method thereof |
| CN108281671A (en) * | 2017-12-28 | 2018-07-13 | 广州倬粤动力新能源有限公司 | Co-extrusion type grid fiber composite line |
| US10919272B2 (en) | 2019-04-11 | 2021-02-16 | Industrial Technology Research Institute | Fiber composition structure |
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| Publication number | Publication date |
|---|---|
| CN1140005C (en) | 2004-02-25 |
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