Many of us have a dilemma regarding selecting a motor that suits our project . The main problem comes while selecting features like its torque and speed (rpm) . So i would like to share this tool with you. it may help you!!
Selecting a motor is one of the most critical and crucial part in a project,but this tool makes it quite easy , just enter all the details regarding your application (maybe a robot) and it will provide with specifications of a motor suitable to your application. its easy and handy .
I will share you the link ,all the information will be available there. just give it a try !!
A paper battery is an ultra-thin electric battery. Their functioning is similar to conventional chemical batteries with the important difference that they are non-corrosive and do not take much space in our circuit . Their working principle and inner working mechanism is same as most of the batteries we use today .
Anode and cathode are the metal electrodes in the battery. The electrodes are placed in the battery in such a way that, they are in contact with the electrolyte. When an external load connected to the battery circuit is closed, current begins to flow because of the electro chemical reactions occurring inside the battery. Oxidation and reduction are the two main electro chemical reactions happening in any batteries. Oxidation takes place at anode and reduction takes place at cathode. Anode loses electrons to the ions from the electrolyte to form a compound and hence is said to be positively charged. Cathode gains electron from the electrolyte to form a compound and hence is negatively charged.
What is the role of the seperator?
The separator separates the anode and cathode. The batteries have to be very compact in size for the ease of use and hence the cathode and anode are closely packed. The separator acts as a barrier preventing the anode and cathode from touching each other. When they come in contact there will be no flow of current in external circuit.
Construction of paper batteries
A common xerox paper of desired length is taken
A specially formulated ink (with CNT) is spread over the paper
On the other side a thin film of lithium(metal we desire ) is laminated.
Aluminium rods are connected for carrying current.
Advantages of paper batteries
Biodegradable & Non Toxic
Reusable & Recyclable
Durable
Rechargeable
No Leakage & Overheating
Very Light Weight & Flexible
as liquids like blood and sweat also can be used as electrolyte they can be used in medical industry
Applications
Low battery power devices like in calculators, wrist watch and other low drain devices
Laptop batteries, mobile phones, handheld digital cameras
Wireless communication devices like mouses, keyboard, bluetooth headphones,etc
Getting started with basic electronics is easier than you might think. This post will hopefully demystify the basics of electronics so that anyone with an interest in building circuits can hit the ground running. This is a quick overview into practical electronics and it is not my goal to delve deeply into the science of electronics . If you are interested in learning more about the science of basic electronics, Wikipedia is a good place to start your search.
The best area i concentrated is understanding basic components of electronics and understanding them at root level !!
narra aravind 