For mobile electronic devices, the short battery life is still an urgent problem to be solved, and battery capacity has often become a selling point for some electronic products. Recently, researchers at Northwestern University have discovered a new material called "COF (covalent organic framework)", which will likely break the current state of lithium-based mobile devices.
The team led by William Dichtel is currently working on COF research, and they have also made considerable upfront investments. "COF (covalent organic framework)" has a crystal structure, which constitutes a pore suitable for storing electrical energy and contributes to the filling of conductive substances. The study found that the new material can withstand tens of thousands of charge and discharge cycles, its overall capacity is 10 times that of traditional materials, and the recharge rate can be increased by up to 15 times.
In addition to Northwestern University, commercial companies such as Samsung, Apple, and Tesla are also working hard to improve their battery products, trying to increase their storage capacity while reducing weight. A battery company called Amprius even uses nanotechnology in its battery process, using silicon and sulfur to create very complex electrode structures that ensure batteries can exceed standard products in capacity and speed.
However, there are still many pits in the field of battery research and development that need to be bypassed. Research that is too "advanced" is likely to drag down some projects. Sony can be used as a guide for us. Although they successfully realized the commercialization of lithium-ion batteries in 1991, due to low performance and technical bottlenecks, the battery business could only be transferred to Murata.
Although William Dichtel is full of confidence in the newly discovered COF and believes that it can be effectively applied in the industrial field, Northwestern University has not yet been able to develop a complete battery prototype, and there is still a long way to go before civilian popularization. These new battery products, including COF, are more or less faced with slow development and high cost. The lithium battery has spanned nearly a century from the beginning of research and development to the actual commercial use. It doesn't look so clear.
Industrial sectional High Speed Overhead Door
Product Description
Product Description:
| Name | Sectional overhead glass panel garage door | |
| Operation way | electric /remote/manual | |
| Position | garage/shop/auto4S store/Industrial/Garden etc. | |
| Door panel structure |
aluminum alloy frame +Tempered Glass / Polycarbonate Glass /double-glazing |
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Door panel frame |
material | aluminum alloy |
| thickness | 2.0mm | |
| color |
white, black ,gray, silver gray, wood grain, cream (any colours can be specified) |
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| surface Treating | baking varnish | |
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Thickness of door panel |
40mm/50mm |
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Core of the door panel |
Tempered Glass |
5.0`6.0mm thickness ,Full view clear or frosted |
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Polycarbonate Glass |
5.0mm ~10mm thickness ,Full view clear or frosted |
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| aluminium sheet |
9.0mm in thickness,baking varnish with surface traeting,color like the frame |
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other tempered Glass |
mirror glass,baking glass and many kind of glass for your options |
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choose your glass:
The glass can be use polycarbonate glass( clear or frosted )
and tempered glass (clear or frosted/coated colour /tinted color/mirrow)
5-10mm thickness for glass
>>Tempered Glass - enhanced safety
>>Polycarbonate - superior strength with UV protection
hardware Accessories
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Guide rail |
Size | 2"/3" |
| Materail | galvanized steel | |
| Thickness | 2.0mm | |
| Bracket | Materail | galvanized steel |
| Thickness | 3.0mm | |
| Hinge | Model | Finger-protect/normal |
| Materail | galvanized steel | |
| Thickness | 3.0mm | |
| Roller | Size | 2"/3" |
| Materail | galvanized steel/Nylon | |
| shaft | Model | solid/hollow |
| Materail | galvanized steel | |
| External key lock | For independent garage door, this sort of lock allows you to use external key to start the clutch deviceand open the door in case of power failure under the condition that there are no entries or side doors. | |
| Box airbag safety system |
The door will be automatically to rise If there are any obstacles in the process of downward |
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Spring break device |
When the spring is broken,the door can auto stop to prevent the door falling down |
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Cable break safety system |
Once the cable is broken ,this device will blocked on the guide rails in case of breakage of the steel wire prevent the door falling down | |
| V external reinforcing bars |
helping to enhance the strength of door panels,1.0mm thickness, 80mm height, with the bars the door can against the Hurricane |
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SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , http://www.hongfarrs.com