Wednesday, 27 May 2015

Will The Alumium-Ion Battery Be Widely Applicated At Electronic Device?

Researchers at Stanford announced what many saw as a breakthrough in battery technology at April 6. It appears that there are several advantages of the aluminum-ion (Al-ion) battery over lithium-ion (Li-ion) batteries, the current standard for laptops, smartphones and other rechargeable devices:

1.Safety. Li-ion battery is a explosive materials that may burst into flames, which has led to a number of recalls since their introduction in early 90s. The video Stanford released shows researchers drilling a hole through their prototype without eliciting so much as a snarl.

2.Flexible. As Scientific American explains that the battery’s aluminum metal anode (negative side) is divided from its graphite foam cathode (positive side) by a liquid electrolyte separator, which, in consumer terms, translates into a pouch as bendable—even foldable—as an underfilled ketchup packet.
3.Can be fully charged incredibly fast. Researchers managed to charge a smartphone in a minute using their prototype while Li-ion batteries require hours to fully charged.
4.Much more charging cycles, completing over 7500 charge cycles without losing capacity, compared to the typical Li-ion battery’s 1000 cycles. Previous cracks at developing an Al-ion battery usually only managed about 100 cycles.

5,Lithium is much expensive than Aluminum.
According to the advantages said above, you might be saying, eureka, they’ve done it. Unfortunately, it may be too early to declare a breakthrough yet.

Disadvantages

The Al-ion battery’s energy density is a quarter of the typical Li-ion battery’s, according to Scientific American reports. Additionally, as Stanford chemistry professor Hongjie Dai admits, his team’s prototype “produces about half the voltage of a typical lithium battery.” He remains optimistic, however: “improving the cathode material could eventually increase the voltage and energy density.”

The same issue would likely make the Al-ion battery a no-go for smartphones and other portable devices, despite the fact that that application has generated much of the media buzz so far.

Sunday, 24 May 2015

10400 mAh USB battery with water and shock resisting


This UNIFUN USB battery is the sturdiest pack I've found and my favorite portable battery yet. It is perfect for use on a bicycle, motorcycle or camping.

I do not trust the charging system on one of my motorcycles, and for long road trips apps like Waze and evidently the podcast player run down my iPhone 6 pretty fast. Over a multi-day trip, this pack allows several full recharges of my phone. It is also small and tough enough to allow me to put the battery in the handlebar mount, and ride with the two connected. I'm not worried the constant buzzing of my bars, or random rainstorms, will damage the battery.

While slightly larger than its less rugged cousins, this battery will hold up to some adventure. It offers 2 USB charging ports, one a higher speed 5v/2.1A and one the other 1.5v/1A, and a flashlight.

Custom battery pack,Protection circuit modules Lithium Polymer Battery

Thursday, 21 May 2015

Guide of RC Battery: Lithium-Polymer Batteries Basics Part


With many advantages such as low weight, high energy density, and ever greater discharge rates, Lithium-Polymer (LiPo) batteries have been wodely used on RC. The emergence and continual improvement of these batteries has provided an excellent performance boost for RC cars, boats, airplanes, and helicopters, while also paving the way for new vehicles such as multi-rotors. All of this electric goodness does not come without a cost. If not handled and utilized properly, LiPo batteries can quickly become damaged or even catch on fire. Today, I would like to share some basic things you should know about making the most of LiPo batteries. I will also provide techniques to mitigate the risks that these batteries pose.

When talking about a LiPo, it's neccessery to know the primary characteristics to understand the battery’s voltage and capacity. This is typically noted in a shorthand such as “4S-2200”. In this case, “4S” denotes that the battery has four cells in series. The nominal voltage of each cell is 3.7 volts (4.2v fully-charged), so the total pack voltage is:

4 cells x 3.7v = 14.8v.

The "2200" means the capacity of the battery in milliamp-hours (mAh). A fully charged 2200mAh pack can provide a current of 2200 milliamps (2.2 amps) per hour before it is fully discharged. This capacity value is completely independent of how many cells are in series. In simple terms, the capacity value allows you to estimate how long a battery will provide useful power in a given application. In practical terms for RC use, the capacity rating is typically only helpful for rough comparisons of different batteries. i.e. a 2S-5000 battery will provide about double the run time of a 2S-2500 lipo in the same RC car.

It's quite common when it was 10 years ago, while is now rare to find a RC LiPo battery that uses cells in parallel. Let’s look at an example in case you happen across one. A 4S2P-2200 battery would consist of two 4S-1100 batteries wired in parallel to provide a total 2200mAh capacity. All other things being equal, you would care for and use this battery the same as you would the previous 4S-2200 example (which is really a 4S1P-2200, but we ignore the 1P). There may be a difference in physical size, but a 4S-2200 and a 4S2P-2200 are functionally equivalent. The differences will really only matter to the guy at the factory who has to assemble the battery.

Custom battery pack,Protection circuit modules Lithium Polymer Battery

Wednesday, 20 May 2015

APC Mobile Power Packs released by Schneider



Schneider Electric, which is a worldwide specialist in energy management, has launched the high capacity APC Mobile Power Pack range ,this is high efficiency external battery packs to local shores.

The APC Mobile Power Pack can provide mobile charging for all the device that can be charged by USB cable such as Smart phone and tablets. The new lightweight external batteries enable a greater range of apps to be used for longer periods, including energy sapping applications that use location services and GPS.

Bruce Grobler, IT Business director for Southern Africa at Schneider Electric, said, the APC Mobile Power Pack is designed to ensure that users can utilise their apps when they need them – whether that means being able to download e-mail and documents, tweet, access gaming accounts or upload pictures and videos at festivals.

“We all need more battery life at some time or other, either at home, on our travels or at work. The APC Mobile Power Pack allows users to get more from their mobile,” he adds.

There 2 sizes of this APC Mobile Power Pack external battery packs: M5 (5000mAh) and M10 (10,000mAh). The smaller M5 weighs in at 142g and measures under 108mm x 65mm x 15mm, packing enough energy to charge the average smartphone twice. M5 weighs 243g and measures under 147mm x 89mm x 14mm, it provides one full charge for a tablet or four smartphone charges.

Externally, it can support 2 devices to be charged by connecting to the two output USB connections.
The battery packs are charged using a supplied micro USB connector; charge times are typically four hours (M5) and eight hours (M10). Both external batteries are remarkably efficient at storing charges and can be left in laptop bags, handbags, rucksacks and the like for weeks on end with no significant energy loss.

Custom battery pack,Protection circuit modules Lithium Polymer Battery

Monday, 18 May 2015

A huge changed has been occured at the Grid the way

Currently, large power plants generated most power and provided to consumers. Electric energy storage offers a double-way flow of power that makes some obvious advantages for support of the power grid. For example, storage is particularly useful for offsetting the intermittent nature of wind and solar photovoltaics, which don’t produce power on demand as a fossil fuel power plant does.

Having a battery behind the meter provides a great deal of flexibility in  energy using manage for an individual consumer. Consumers are allowed to cut their electric bills by reducing how much power they consume during peak hours when waste a high power costs, which is usual situation in many states such as California.

Houses with rooftop solar panels on the top and batteries can actually use energy from their solar systems during power outages and, with The right amount of storage, have sufficient power to last for days if the grid is out. And with enough storage, they can disconnect from the grid indefinitely – a development utilities fear.

Some states have net metering, programs in which utilities purchase the excess electricity from solar panels that’s fed into the grid. In combination with net metering, behind-the-meter storage creates the opportunity for customers to buy power from the grid when prices are low and then sell stored energy from batteries when prices are high. This practice, known as arbitrage, has led to concerns at utilities which have levied large additional charges for equipment installations in some places.

Commercial and industrial customers stand to benefit from behind-the-meter storage as well. They can reduce their usage during times of peak demand and cut so-called demand charges – fees for maximum power usage – that can dominate how much they pay for energy.

Custom battery packs