CN2528116Y - High energy storage battery with active nano carbon fibre (CNT) electrode - Google Patents
High energy storage battery with active nano carbon fibre (CNT) electrode Download PDFInfo
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- CN2528116Y CN2528116Y CN02213330U CN02213330U CN2528116Y CN 2528116 Y CN2528116 Y CN 2528116Y CN 02213330 U CN02213330 U CN 02213330U CN 02213330 U CN02213330 U CN 02213330U CN 2528116 Y CN2528116 Y CN 2528116Y
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Abstract
An active nano-carbon fibre (CNT) electrode high-energy battery belongs to the battery technology, which is composed of a battery container, a container cover, electrolyte, the positive and negative plates, a membrane, the positive and negative electrodes. The positive plate is composed of an aluminium plate grating and an active nano-carbon fibre layer, and the negative plate is composed of a copper plate grating and an active nano-carbon fibre layer. The diameter of the active nano-carbon fibre is from 20 to 80mm, while the length is from 200 to 300mm. Each set of positive and negative plates and the membrane of the plates all have the small spacing in which the positive and negative plates and the membrane of the plates can become a large capacitor, which is equivalent to the parallel connection of the large capacitor to a battery. The membrane is made by a non-woven polymer with high dielectric strength, in which the size is the same as the internal size of the battery container. The large current can be adopted in the utility model to charge and discharge, and the charging time is shortened by 1/10 to 1/20 than that of the past. The specific energy is up to 7 to 10 time than that of the prior lead-acid batteries, and the weight is greatly reduced. The utility model can be widely applied in various areas of industrial equipments, transport and weapons.
Description
Technical field
The utility model 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.
The purpose of this utility model 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, the utility model active nano carbon fiber (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 utility model 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 utility model comes to this and finishes.
The utility model provides a kind of 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 utlity model has electric capacity and battery two specific characters, 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 utility model.
Fig. 2 is an equivalent circuit diagram of the present utility model.
Shown in Figure 1, positive/negative plate of the present utility model 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, the utility model active nano carbon fiber (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 embodiment of the utility model is 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 |
|---|---|---|---|
| CN02213330U CN2528116Y (en) | 2002-03-15 | 2002-03-15 | High energy storage battery with active nano carbon fibre (CNT) electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02213330U CN2528116Y (en) | 2002-03-15 | 2002-03-15 | High energy storage battery with active nano carbon fibre (CNT) electrode |
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| Publication Number | Publication Date |
|---|---|
| CN2528116Y true CN2528116Y (en) | 2002-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN02213330U Expired - Fee Related CN2528116Y (en) | 2002-03-15 | 2002-03-15 | High energy storage battery with active nano carbon fibre (CNT) electrode |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011139174A1 (en) * | 2010-05-04 | 2011-11-10 | Kogan Andrey Yakovlevich | Double-layer capacitor or ultracapacitor device |
| CN102751505A (en) * | 2012-07-25 | 2012-10-24 | 杨成清 | Lead-acid storage battery polar plate grid |
| CN107978732A (en) * | 2014-06-20 | 2018-05-01 | 东莞新能源科技有限公司 | Pole piece and battery |
-
2002
- 2002-03-15 CN CN02213330U patent/CN2528116Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011139174A1 (en) * | 2010-05-04 | 2011-11-10 | Kogan Andrey Yakovlevich | Double-layer capacitor or ultracapacitor device |
| CN102751505A (en) * | 2012-07-25 | 2012-10-24 | 杨成清 | Lead-acid storage battery polar plate grid |
| CN107978732A (en) * | 2014-06-20 | 2018-05-01 | 东莞新能源科技有限公司 | Pole piece and battery |
| CN107978732B (en) * | 2014-06-20 | 2020-03-27 | 东莞新能源科技有限公司 | Pole piece and battery |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |