CN1142609C - Nano carbon tube composite high-energy accumualtor-separator gate - Google Patents
Nano carbon tube composite high-energy accumualtor-separator gate Download PDFInfo
- Publication number
- CN1142609C CN1142609C CNB021205027A CN02120502A CN1142609C CN 1142609 C CN1142609 C CN 1142609C CN B021205027 A CNB021205027 A CN B021205027A CN 02120502 A CN02120502 A CN 02120502A CN 1142609 C CN1142609 C CN 1142609C
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- CN
- China
- Prior art keywords
- sintering
- grid
- carbon tube
- nano carbon
- polar plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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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- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The present invention relates to a nano carbon tube composite high-energy accumulator grid. The present invention relates to an accumulator grid of the novel composite material. The accumulator grid component is composed of a nanometer carbon tube, the carbon fiber, the glass fiber and the silicon nitride. The components are evenly stirred pro rata. After the 107 floor glue is evenly mixed, the 107 floor glue is punched and formed by a mould. After the drying of a constant temperature cabinet and the sintering of a sintering furnace, the 107 floor glue is slowly cooled down and the temperature of the 107 floor glue is near the room temperature, so the sintering of the discharge grid framework is completed. The grid surface is coated with the lead plaster for 3 days and is formed from 20 to 25 hours, and then the battery can be assembled. The electrical conductivity of the polar plate is good, and the porosity is high. The nano carbon tube is arranged, the positive and negative active material particles are arranged on the hole wall with fine holes and take up the half volume of the polar plate. The dispersivity of the active material in the polar plate is good, and the surface area is large. The nano carbon tube is connected with a silicon nitride (SiN) sintering basal body and the electrolyte to reduce the electrical resistance of the polar plate. The battery voltage is stable when the battery discharges electricity at high multiplying power.
Description
Technical field
A kind of nano carbon tube composite high-energy accumualtor-separator gate the present invention relates to a kind of battery grid of advanced composite material (ACM).
Background technology
For its essential structure of lead acid accumulator (lead), be still at present and continue to use old burning cast panel grid autofrettage, the weight of this Plante-type plate grid accounts for nearly 1/2 of entire electrode plate weight.This grid is very serious to the pollution of environment in burning the casting process, the electrode plate grid real surface is long-pending often seldom thus, the utilance of active material also is not in full use, generally, add the factor affecting of electrolyte all below 40%, so, to the lead acid accumulator gravimetric specific energy, actually can reach the very low of energy, and can not satisfy the needs of high power charging-discharging, special easily the generation again after overdischarge is shelved do not have electroactive sulfate to cause charging ability to reduce.
Summary of the invention
The objective of the invention is in order to improve the lead acid accumulator active material utilization, and battery high power charging-discharging characteristic.
The component of nano carbon tube composite high-energy accumualtor-separator gate of the present invention is made up of CNT (carbon nano-tube), carbon fiber, glass fibre and silicon nitride (SiN), wherein the content of each component is respectively 0.01～0.05%, 1～1.5%, 1.5～2% of total weight percent, and all the other are silicon nitride; Above-mentioned each component is stirred in proportion, add after 107 floor glues mix, by the die stamping moulding, pressure is the 30-60 ton, through 32-37 ℃ of oven dry of insulating box, makes its water content after 0.1～0.5%, through sintering furnace sintering 1.5 hours, temperature is 680 ℃～1700 ℃, slowly is cooled near room temperature and comes out of the stove, and grid skeleton sintering is finished.
In the sintering process, only between 0.1～0.05%, this just can obtain the accurate grid of size to the grid volume shrinkage mass.
Sintering of the present invention goes out silicon nitride (SiN) matrix of pole plate, conducts electricity very well the porosity height, can reach about 20%, add CNT (carbon nano-tube), positive and negative electrode active material particulate accounts for (50%) of pole plate volume on the hole wall of pore, active material good dispersion in the pole plate, surface area is big, and CNT (carbon nano-tube) and silicon nitride (SiN) sintering matrix joins, and is connected with electrolyte again, pole plate resistance is reduced, so cell voltage is stable during the battery high-multiplying power discharge.
Composite material of the present invention has added after carbon fiber and the glass fibre, and CNT (carbon nano-tube) and silicon nitride (SiN) material is further strengthened, and strengthens electric conductivity, improves mechanical performance (the preventing fracture) anti-impact force of composite material.Improve the decay resistance of composite material, changed the surface state of grid, improved the grid surface activation, suppressed PbSO
4Generation.
The present invention makes grid with composite material, that grid can be done is thinner, it is necessary adopting slim grid design to satisfy high-rate discharge ability, (0.3mm～1.0mm) has increased the electrode reaction area to slim grid, improve active material utilization, reduced the internal resistance of cell (0.02 Ω～0.03 Ω), thereby can obtain good heavy-current discharge performance, the pole plate time of changing into can shorten 4-5 hour, the manufacturing process of this grid is simple simultaneously, just can manufacture with homemade common production equipment, make grid assembled battery with nano composite material.
Description of drawings
1. figure is this nano carbon tube composite high-energy accumualtor-separator gate structural representation.
Embodiment
Embodiment (seeing that figure is 1.):
Getting percentage by weight and be 0.02% CNT (carbon nano-tube), 1.2% carbon fiber, 1.7% glass fibre and 97.08% silicon nitride powder mixes, with 107 floor glues of gross weight about 5% with they be in the same place, after putting into mould compression moulding (30-60 ton), put into the insulating box oven dry, make its water content reach 0.1～0.5%, through sintering furnace sintering 1.5 hours, temperature was 680 ℃～1700 ℃, slowly be cooled near room temperature and come out of the stove, grid skeleton sintering is finished; Grid be shaped as rectangle, wherein be square-grid, in order to increase the reinforcement of making to have " X " type on its intensity grid, a side of grid is provided with an installing handle.
Claims (1)
1, a kind of nano carbon tube composite high-energy accumualtor-separator gate, the component that it is characterized in that it is made up of CNT (carbon nano-tube), carbon fiber, glass fibre and silicon nitride, wherein the content of each component is respectively 0.01～0.05%, 1～1.5%, 1.5～2% of total weight percent, and all the other are silicon nitride; Above-mentioned each component is stirred in proportion, add after 107 floor glues mix, by the die stamping moulding, pressure is the 30-60 ton, through 32-37 ℃ of oven dry of insulating box, makes its water content after 0.1～0.5%, through sintering furnace sintering 1.5 hours, temperature is 680 ℃～1700 ℃, slowly is cooled near room temperature and comes out of the stove, and grid skeleton sintering is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021205027A CN1142609C (en) | 2002-05-23 | 2002-05-23 | Nano carbon tube composite high-energy accumualtor-separator gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021205027A CN1142609C (en) | 2002-05-23 | 2002-05-23 | Nano carbon tube composite high-energy accumualtor-separator gate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1380710A CN1380710A (en) | 2002-11-20 |
| CN1142609C true CN1142609C (en) | 2004-03-17 |
Family
ID=4744774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021205027A Expired - Fee Related CN1142609C (en) | 2002-05-23 | 2002-05-23 | Nano carbon tube composite high-energy accumualtor-separator gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1142609C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946545B (en) * | 2016-12-31 | 2020-09-01 | 华富(江苏)电源新技术有限公司 | Negative plate of lead-carbon battery |
| CN107968206B (en) * | 2016-12-31 | 2020-09-18 | 江苏华富储能新技术股份有限公司 | Carbon material grid for lead-carbon battery and preparation method thereof |
| CN108330568A (en) * | 2017-12-28 | 2018-07-27 | 广州倬粤动力新能源有限公司 | The preparation method of grid active nano carbon fiber |
| CN109802099B (en) * | 2018-12-29 | 2022-11-29 | 河南诺兰特新材科技有限公司 | Method for manufacturing lead electrode fused with silicon nitride and lead-acid storage battery thereof |
-
2002
- 2002-05-23 CN CNB021205027A patent/CN1142609C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1380710A (en) | 2002-11-20 |
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