Monday, 13 April 2015

Battery Tests Show Some Lithium-Ion Cells Last Over 5x Longer

Researcher Andreas Gutsch from the Karlsruhe Institute of Technology said at the PV Symposium in Germany recently that some lithium-ion cells working in storage systems experienced up to 30% capacity loss after 1,000 cycles, while some cells have a better capacity after 5,000 cycles. In other words, there can be quite a lot of variation in lithium-ion cell performance.


Testing conditions did not allow him to reveal the names of cell manufacturers. The cells were not easy to obtain for testing and he could not disclose that specific information. However, his test results did reveal that cells from China that were tested had the performance that decreased most rapidly. Cells from Japan and Germany did the best, while ones from South Korea and the US were in the middle of the performance range.

One battery type that was specifically mentioned was the Tesla battery. This battery was found to last 400 cycles and was indicated to have the ability to power a car for about 200,000 kilometers (124,000 miles): 400 cycles multiplied by 500 km per full charge. That said, Elon Musk has stated that Tesla has a Model S in the lab with 500,000 miles (805,000 kilometers) on it, and without excess degradation. So, it seems the tests have been conducted very differently or something funky is going on.

Gutsch previously noted that some energy storage battery types might have safety issues, such as thermal runaway. According to his research, safety standards for some batteries have not been met.

He does believe batteries will eventually be a great way to store electricity, though.

All, or most of us lay people are on a learning curve when it comes considering how to evaluate the best batteries for consumer technology performance. To engineers, it may not be surprising at all that there could be such a range in cell performance. It may be fairly dismaying to lay persons to find this out, though we may notice that some of our consumer devices (like smartphones and other rechargeables) have poor to very poor battery lives, with variation being rather large.

Battery storage for a home or business is quite another matter.


China's BYD ramps up 'leccycar battery production in challenge to Tesla

Warren Buffett-backed Chinese car manufacturer BYD is aiming to compete with Tesla Motors by tripling its production of batteries for electric cars over the next three years.

BYD will produce an additional six gigawatt-hours' worth of batteries per year over the next three years, said company spokesperson Matthew Jurjevich, adding that with the support of consumer demand these production increases could be continued beyond the three years of increase scheduled.

If this rate of production increase continues to 2020, BYD would be set up to challenge Tesla Motors' $5bn Gigafactory in Nevada, which is projected to achieve an annual production capacity of 35GWh when it begins operating in 2016.

Rumours of difficulties in the development of the Tesla Gigafactory have been refuted by CEO Elon Musk. The company is, however, downsizing its Chinese operations following a bungled incursion into the market which has left its distribution centres overstocked. Tesla does not currently produce battery cells, instead sourcing them from Panasonic.

Reuters cites GTM Research as estimating the electricity storage sector growing from a $128m market in 2014 to being worth $1.5bn in the US alone by 2019.

While BYD electric cars aren't luxury models like Tesla's, BYD may be at an advantage in regularly utilising Lithium Ferrophosphate (LiFePO4) batteries in their Energy Storage Systems. LiFePO4 is a Li-ion battery technology which offers a considerably longer cycle-life than the batteries Tesla uses.

In 2010, BYD came first in Bloomberg Businessweek's Top 100. Businessweek claimed that Warren Buffett, though “legendary for his dislike of tech investments”, was persuaded by Charlie Munger “to buy a 10 per cent stake in BYD for about $230m. That was in September 2008. Today Buffett's piece is worth nearly $2bn.”

BYD recently partnered with Uber, who are running 25 of BYD's e6 models around Chicago as part of a ride-sharing venture with Green Wheels.

Thursday, 9 April 2015

About the past era of lithium aluminum battery age will come up?

Chinese American scientists have developed a high-performance aluminum battery's first commercial application, its charge faster, last longer and very cheap, just one minute using this smart phone battery is fully charged. The new battery can replace the widely used but there is still insufficient lithium ion batteries and alkaline batteries. Research published in the April 6 issue of "Nature" magazine online edition.

Because aluminum battery has a low cost, easy to burn and do not have a high charge storage capacity, etc., for decades researchers have attempted to develop an economically viable to aluminum ion batteries, but has not been successful, where the key challenge is to find the right positive materials and electrolyte materials, so that the aluminum battery is constantly charging and discharging cycles can still produce an effective voltage.

The study's lead author, professor of chemistry at Stanford University Dai said: "People try a variety of cathode materials, but the effect is unsatisfactory we accidentally discovered a new graphite material, which has excellent performance, can be used as a positive electrode of the battery. "

According to the US Science Daily website reported April 6, and the cathode is comprised of graphite researchers in experiments by aluminum anode, coupled with the ionic liquid electrolyte, placed in a flexible polymer foil-wrapped software package in the manufacture of this battery. The research collaborators Gong Ming (phonetic) said: "The electrolyte is basically a liquid salt at room temperature state, therefore, the entire system is very safe."

Dai Hongjie said: "The newly developed aluminum rechargeable batteries safer than conventional lithium-ion batteries, lithium ion batteries may explode, in order to take preventive measures, United Airlines and Delta Air Lines recently forbid civil aircraft checked chunks Lithium batteries, aluminum battery will not explode. On the other hand, is currently equipped with a lithium-ion battery charging smartphones may take several hours, but the use of this aluminum battery for a fully charged cell phone just a minute. "

Aluminum ion battery developed at the University of domestic mobile phone charger available one hour four days

In addition, the new battery life is very long. Other laboratory developed aluminum battery can charge and discharge 100 times, usually lithium-ion battery charge and discharge up to only 1000, and the new aluminum battery without any loss in capacity after 7500 charge-discharge cycles later. The researchers said, "This is the first time the development of this fast, and after thousands of charge-discharge cycles 'torture' still safe and sound after the aluminum ion batteries."

Dai Hongjie said that another feature of the new battery is its soft figure, you can also make it bent its folded, therefore, has the potential for flexible electronic devices. In addition, the battery can replace alkaline batteries will pollute the environment, but also cheaper than aluminum lithium battery. "In addition to small electronic devices, such aluminum battery can be used for renewable energy storage within the grid Dai Hongjie explained:." Grid requires a long life and can quickly charge and discharge the battery, our aluminum battery is the perfect choice . "

However, the voltage of the battery to produce new aluminum lithium battery is only half of the traditional, Dai Hongjie hope can improve the performance of the cathode material, and ultimately improve the aluminum battery voltage and increase the energy density. .

Tuesday, 31 March 2015

Power lithium battery high demand in 2014 will meet the explosive growth of the future

ufo battery offical site
2014, the number of new cars in the global energy yield sales USA, China, Japan, the European Union and other countries and regions, led by more than 300,000, only China's new energy vehicle production in 2014 reached 83,900. The rapid development of new energy automotive industry, so that the global growth in demand for lithium battery power significantly. According to statistics, in 2014 the world's lithium-ion battery shipments reached 10012.8MWH.
Recalling 2014, AESC, BYD and LG lithium battery shipments over 1GWH, to become the world's top three manufacturers of lithium battery. In 2014, about 800MWH Panasonic lithium battery shipments, SDI, LEJ, Hefei, China Xuan and other enterprises Air lithium lithium battery shipments ranking. AESC batteries which are mainly supplied to the Nissan LEAF and the Renault Kangoo ZE, 24AH batteries using NCM ternary system; LG major supplier to the Chevrolet Volt, Renault ZOE, Volvo V 60 Plug-in other models, the use of the ternary system battery; Panasonic major supplier to the Toyota Prius Plug-in, Ford Fusion Energi, Ford C-Max Energi, Volkswagen e-up and other models; the main supply models SDI for BMW I3 and I8 other models, LEJ Mitsubishi I-miev, Mitsubishi Outlander PHEV and other battery powered vehicles.

Our power lithium battery manufacturers mainly concentrated in Guangdong, Shandong, Jiangsu, Zhejiang, Tianjin and other places, the Chinese enterprises in 2014 the basic use of lithium iron phosphate batteries. 2015 began, there have been a number of domestic models such as EV200, Zotye cloud 100, the second generation of BMW's promise, JAC began using ternary battery batteries. There are rumors that a number of domestic car companies are working with Panasonic negotiations, the intentional introduction of its 18650 NCA batteries fitted to their new energy vehicles. So you can see, the future of the ternary material will become the main power lithium battery cathode material. Currently the major battery plant is actively preparing, and expand the sources of procurement of raw materials, for laying the foundation for the upcoming expansion wave.
Ministry data show that two months of 2015, China produced a total of about 12,000 new energy vehicles. Market analysts said that with all levels of government continue to overweight new energy automotive industry policy, this year China's new energy vehicle population is expected to exceed 20 million units, and as a core component of the electric vehicle battery market demand will be explosive, lithium ion battery market officially entered the golden period.
Relevant institutions predict that by 2020, car ownership in China will reach 200 million, according to the new energy vehicles accounted for 2% of the total vehicle computing, when China's new energy vehicle ownership will reach as many as 4 million. According to the estimated growth curve in 2020, China's annual production of new energy vehicles will be about 1 million. According to a conservative car loaded 30kwh battery, the annual consumption of battery power will reach 30 million kwh, the annual consumption of about 50,000 tons cathode material, anode material about 2.5 million tons, about 28,000 tons of electrolyte, separator of about 400 million square meters. At the current yield calculated on battery power, 2020 will be the expansion of our battery 8x power lithium battery industry will usher in the explosive growth and related industries to flourish.

More about UFO Lithium battery:

LG Chem will provide the lithium battery cell Daimler Smart EV

K-car News LG Chem has released an official statement saying that Daimler has selected the company as a supplier of lithium batteries, will provide Smart EV battery, which models will be launched in 2016.

LG Chem will provide Daimler cell, battery pack assembly by Daimler.
Last August, LG Chemical also received orders for Audi's battery, which provides support for plug-in hybrid vehicle lineup. The company also noted that the future is expected to get more orders from Audi's parent company Volkswagen Group.
In the field of automotive batteries, LG Chemical has gained 20 customers, including General Motors; the company's goal is to overall sales in 2018 will increase to a large battery of 10 trillion won (US $ 9.8 billion) or more.

Friday, 6 March 2015

How to Save Power for Your Iphone6? Iphone6 Saving Power Tips

1, Note the signal strength
One culprit phone battery consumption is often quick search weak signal, but for us, but there is no way. If you are in a relatively poor signal areas, consider temporarily switch to flight mode, not iPhone constantly searching weak signal. Also Wi-Fi can be used under the conditions as much as possible with Wi-Fi, cellular data equally unstable cell phone battery will bring relatively large consumption.

2, closed useless notification center applications
Many applications in the notification center will continue to push the message that you really need it? I think most people are not yes. Each application will consume little power push notifications, so we have to cut off the source. To "Settings", "Notification Center" go close it, and do not forget to turn off the sound alerts and icon.
3, change the display settings
Display is power-hungry, and therefore do not have the time necessary to make it fast closing. To "Settings", "universal", "auto lock screen" in the look, will automatically lock the time to adjust to the relatively short range. In addition, we can also to set the brightness of the wallpaper and close the "Auto Brightness" adjustment, so that the screen is always in a state under a relatively dark, you can also save a lot of power, after all, we only need a relatively large in the case of direct sunlight brightness, and this situation does not always occur relatively.
4. Disable animation
If you do not cold dynamic background and visual difference, 3D effects, then the same can be closed off. Although they look interesting, but also consume more power. We can go to the set of "wallpaper and brightness", select a static image as wallpaper, and in the "General", "Accessibility" close animation.
5, reduce application background refresh
People like between different applications constantly switching back and forth, but you know too many applications running in the background is also very power it? You can close out the background to set the refresh most applications. This is particularly true in the background refresh Facebook application, really special power. Reload each time you want to use, is a more effective method of saving.
6, collect email manually
Push e-mail first thing for some people it is very convenient, but also depends on whether or not to open the frequency and intensity of your e-mail. If we allow the system to receive five minutes once every mailing list in the background than to manually refresh a lot more power. Suppose if you only need a few hours to see a mailbox for each can, then there is no need to let the system automatically collect e-mail in the background. To get to the settings to adjust it.
7, close positioning
Unless it is a map so you must use the positioning application, otherwise location tracking in fact not much use, it is also very power-hungry features.
To "Settings", "Privacy" in the closed position location services, or keep those applications must be positioned, the other useless are turned off. In addition, "Location Services" in the "System Services", there are many built-in functions can be canceled positioning systems, such as location-based advertising iAd based diagnosis and dosage reminders and location and so on.
8, keeping the environment cool
Also affect the temperature of the battery life, do not take iPhone6 put under direct sunlight. When play the big game, or watching online videos, mobile phone batteries can also cause fever, may wish to stop and take a break, so that the temperature decreases and then continue it.
9. Turn off Automatic Updates
Generally, either the application or system update will bring new features, but always automatically updated, will consume electricity at inopportune times. To the "Settings" in the closed iOS system, automatic updates, and "iTunes and App Store" closes the application automatically download the update, it will also save power, even if the hand update, but also choose the next Wi-Fi environment.
10, turn off Siri
If you do not regularly use Siri, you can go to the "Settings", "universal" in the turn off Siri, because when you're not careful it does not touch the Home key to retrieve the start Siri.
11, turn off the vibration
In the "Settings", "voice" can choose to turn off vibration, while the "Mail" set in vibration close the new e-mail alert, doing so will really save you a lot of power.
12, turn off iCloud
We enter into iCloud setup, you will look at cloud sync you will consume a lot of data and power, of course, the case that you can connect the phone back on the charger sync iCloud backups can also be a very good save important data.
In fact, we often feel that their phone is power, why was not any electricity on out shabu, in fact, many times this is with some of your habits with the machine, we want to get rid of those bad habits with the machine, we recommend you Some applications do not back off, to reduce unnecessary start-up items, I hope that today's 12 iPhone6 saving tips for you to help.

Thursday, 5 March 2015

Apple was sued by Electric Car Battery Manufacturer

Apple is working with an electric car battery manufacturer to discuss together to solve the legal proceedings, this battery manufacturer accused Apple of illegal employment of their key engineers, and work for Apple's new battery business.

A123 Systems filed in Massachusetts last month to federal court lawsuit against Apple and five former employees of A123 Systems, which several Apple employees now work. The lawsuit against Apple in the last year has taken "aggressive actions", which won over the implementation of key development and testing activities of employees. The lawsuit seems to provide further evidence that Apple has developed an electric vehicle that goal.

On Tuesday, Apple has made an application to the court, and they hope to get more time to respond to the lawsuit, they said it is exploring alternatives and potential plaintiffs plan to solve this problem.

A123 Systems is committed to developing an energy storage system that is suitable for a variety of commercial and industrial applications, including advanced energy storage for electric vehicles. A123 Systems for the bus company to build lithium-ion hybrid system to any other manufacturer in the world to be more than.

Apple hired five employees accused of execution in the lawsuit with Apple in the same function, in violation of the employees to sign non-compete and confidentiality agreements. Although in many US states that non-compete clause in the law is enforced without, but in Massachusetts, which is A123 Systems is allowed to sue the place of the agreement.

Apple rumors began to develop electric cars last month, rumors indicate that Apple is the formation of a team responsible for the design of electric vehicles, this team is by Tesla and other auto companies to recruit people who co-founded. And A123 Systems developed technology will be the key technology for electric cars on the roads.