Batteries are part of our everyday life, and powers everything from your cell phone to your car. However, they are heavy, not eco-friendly, and expensive. In summary, batteries is still stuck in 20th century technology. But a recent development may finally bring it into the 21st century.
Swedish scientists are currently trying to develop a light, eco-friendly, and inexpensive batteries consisting entirely of nonmetal parts, and they called it paper battery. That's right, paper battery! This battery is made of cellulose, the stuff of paper.
According to the scientists, this new type of battery has many benefits. It recharges faster than conventional rechargeable batteries and appears well-suited for applications involving flexible electronics, such as clothing and packaging.
One potential application of this battery is to light up wrapping paper with words like "Happy Birthday" or "Happy Holidays."
More information can be found here.
Thursday, September 24, 2009
Wednesday, September 16, 2009
Back-to-School!
As another new school year is upon us, we would like to take this opportunity to thank all educators, faculty, and staff. We want to acknowledge all the time and effort you put into nurturing students.
To show our appreciation for all the hard work and support that educators provide, we would like to offer a 20% discount for all orders being shipped to a school address.
Please enter the coupon code "school20" during the checkout process and you will receive 20% off the entire order.
Since this is a very special discount, please make sure the order is shipping to a school address, or we reserve the right to remove the discount from the order.
We wish you all a wonderful and safe school year!
Thank you for all that you do!
To show our appreciation for all the hard work and support that educators provide, we would like to offer a 20% discount for all orders being shipped to a school address.
Please enter the coupon code "school20" during the checkout process and you will receive 20% off the entire order.
Since this is a very special discount, please make sure the order is shipping to a school address, or we reserve the right to remove the discount from the order.
We wish you all a wonderful and safe school year!
Thank you for all that you do!
Thursday, September 10, 2009
Different Types of Battery
Modern batteries use a variety of chemicals for power.
They are divided into two main categories, Primary or Rechargeable battery.
Primary battery is non-rechargeable and is very common and is used in many different devices/applications.
The different type of Primary battery are:
* Extra Heavy Duty Battery(Zinc Chloride/Zinc Carbon) - Commonly known as Extra Heavy Duty battery, zinc-chloride/zinc-carbon chemistry is used in all inexpensive AA, C and D dry-cell batteries.
* Alkaline Battery(Alkaline) - Alkaline chemistry is used in common brands like Duracell and Energizer batteries and is more powerful than Extra Heavy Duty battery.
* Hearing Aid Battery(Zinc-air) - This battery is lightweight and has very high power density.
They are divided into two main categories, Primary or Rechargeable battery.
Primary battery is non-rechargeable and is very common and is used in many different devices/applications.
The different type of Primary battery are:
* Extra Heavy Duty Battery(Zinc Chloride/Zinc Carbon) - Commonly known as Extra Heavy Duty battery, zinc-chloride/zinc-carbon chemistry is used in all inexpensive AA, C and D dry-cell batteries.
* Alkaline Battery(Alkaline) - Alkaline chemistry is used in common brands like Duracell and Energizer batteries and is more powerful than Extra Heavy Duty battery.
* Hearing Aid Battery(Zinc-air) - This battery is lightweight and has very high power density.
Thursday, September 3, 2009
Introduction to Batteries
Today, we will explain the basic concept of how battery works and in later dates, dive further into the different components and chemistry of a battery.
Batteries are all over the place -- in our cars, our PCs, laptops, portable MP3 players and cell phones. A battery is essentially a can full of chemicals that produce electrons. Chemical reactions that produce electrons are called electrochemical reactions.
If you look at any battery, you'll notice that it has two terminals. One terminal is marked (+), or positive, while the other is marked (-), or negative. In an AA, C or D cell (normal flashlight batteries), the ends of the battery are the terminals. In a large car battery, there are two heavy lead posts that act as the terminals.
Electrons collect on the negative terminal of the battery. If you connect a wire between the negative and positive terminals, the electrons will flow from the negative to the positive terminal as fast as they can (and wear out the battery very quickly -- this also tends to be dangerous, especially with large batteries, so it is not something you want to be doing). Normally, you connect some type of load to the battery using the wire. The load might be something like a light bulb, a motor or an electronic circuit like a radio.
Batteries are all over the place -- in our cars, our PCs, laptops, portable MP3 players and cell phones. A battery is essentially a can full of chemicals that produce electrons. Chemical reactions that produce electrons are called electrochemical reactions.
If you look at any battery, you'll notice that it has two terminals. One terminal is marked (+), or positive, while the other is marked (-), or negative. In an AA, C or D cell (normal flashlight batteries), the ends of the battery are the terminals. In a large car battery, there are two heavy lead posts that act as the terminals.
Electrons collect on the negative terminal of the battery. If you connect a wire between the negative and positive terminals, the electrons will flow from the negative to the positive terminal as fast as they can (and wear out the battery very quickly -- this also tends to be dangerous, especially with large batteries, so it is not something you want to be doing). Normally, you connect some type of load to the battery using the wire. The load might be something like a light bulb, a motor or an electronic circuit like a radio.
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