05 mars 2015

Better Battery-Control Software Could Double Charging Speed: Research

2014-chevrolet-spark-ev-prototype-sausalito-ca-nov-2012_100409382_l New battery charge estimation algorithms developed by engineers at the University of California (UC), San Diego, are on the verge of vastly improve the capabilities of current lithium-ion batteries. The changes center around improving charging times, potentially allowing for batteries that charge twice as fast as those currently available.The new algorithms make the process of monitoring battery packs much more sophisticated, not only allowing the... [Lire la suite]

26 février 2015

Electric-Car Battery Breakthroughs: Ultimate Guide

If it wasn't so important for the future of electric cars, it could almost get tiresome: Just how do you improve batteries for longer life, quicker charging and a greater range? Inspired by Popular Mechanics' look at potential electric vehicle and hybrid battery breakthroughs, here is a compilation of our previous battery tech articles into one handy guide. Which of the following will be our batteries of the future? Aluminum-air We've all heard--and laughed off--stories of water-powered cars. It just isn't possible on any practical,... [Lire la suite]
24 février 2015

Advances In Lithium-Sulfur Batteries Offer Promise For Electric Cars

Commercial uses of the element sulfur date back centuries, but it may be the key to a new generation of batteries with high theoretical energy density and relatively low cost. The principles of a lithium-sulfur battery have been known for decades, but practical solutions to the chemical challenges inherent in the cells remain to be found. Now, a new study the journal Nature Communications (via ChargedEVs) describes a possible way to solve one of those challenges.  In a lithium-sulfur battery, the sulfur and lithium sulfides... [Lire la suite]
20 février 2015

Top EV Battery Manufacturers — 2014 Top 10 In Sales

Comprehensive sales figures for EV Battery manufacturers in 2014 recently became available, giving us further insight into the fast-growing market. Altogether, the year saw an increase of 54% over the previous year. As far as the major players in the market, those haven't change, yet - BYD has definitely been growing in preence and market share. With regard to the top of the pile, Panasonic came in with a market share of 38% — still the undisputed market leader. The company saw 2,726 megawatt-hours (MWh) of capacity sold. Next up... [Lire la suite]
09 février 2015

The Changing Regulations Pertaining to the Transportation of Lithium Batteries

In August the US Department of Transportation (DOT) issued final rule HM-224F affecting the safe transport of lithium batteries. DOT announced that the effects from the revisions of HM-224F will “strengthen safety conditions for the shipment of lithium cells and batteries. These changes, some of which focus specifically on shipments by air, will better ensure that lithium cells and batteries are able to withstand normal transportation conditions and are packaged to reduce the possibility of damage that could lead to an unsafe... [Lire la suite]
02 février 2015

Understanding Lithium-Ion Battery Safety and Its Implications

The National Transportation Safety Board (NTSB) report about the January 7, 2013, fire on board a Japan Airlines Boeing 787-8 aircraft at Boston’s Logan Airport said that the fire involved a lithium-ion battery located in the aircraft’s the auxiliary power unit (APU) and was followed by a second fire, nine days later, in Japan involving the main battery unit of another Boeing 787 aircraft. The NTSB determined that the probable cause of the incident in Boston was an internal short circuit within a cell of the APU lithium-ion battery,... [Lire la suite]

30 janvier 2015

Frost & Sullivan Applauds OXIS Energy for its Lithium-Sulfur Battery Chemistry that Delivers Superior Energy and Safety Profiles

Based on its recent analysis of the advanced lithium-based batteries market, Frost & Sullivan recognizes OXIS Energy with the 2014 European Frost & Sullivan Award for Technology Innovation. OXIS Energy has developed a unique technology based on a lithium-sulfur battery chemistry that resolves some of the issues in the batteries currently used in military, automotive, and solar energy storage applications. As this battery technology offers energy density greater than 300Wh/kg., it is lightweight and offers enhanced safety... [Lire la suite]
29 janvier 2015

New Technologies, Contracts Bolster Growing Energy Storage Business

Promising technological advances and a host of lucrative new contracts and incentives are encouraging signs to alternative energy watchers who say that the market for storing wind and solar-generated electricity could become a multibillion-dollar industry in the next decade. <iframe src="http://player.theplatform.com/p/2E2eJC/nbcNewsOffsite?guid=n_dylan_03energy_110629" width="635" height="500" scrolling="no" frameborder="0"></iframe> Today, the energy storage business is measured in the tens of millions of dollars,... [Lire la suite]
27 janvier 2015

Bosch cooperates with BMW and Vattenfall on a second life electric vehicles batteries project

What to do with valuable batteries once they have reached the end of   their life cycle in electric vehicles? A project involving three partners is connecting old batteries in Hamburg to form a large-scale storage  system to keep the power grid stable. Lithium-ion batteries still have high storage capacity at the end of their life cycle in electric vehicles. As a result, they are still very valuable and can be used extremely efficiently as stationary buffer storage for many years to come. The project allows the three... [Lire la suite]
02 janvier 2015

Graphene Could Kill Lithium-Ion Batteries

Don’t break out the widow’s weeds just yet, but it looks like momentum is building for energy storage to move past the lithium-ion phase and get into the more powerful territory of lithium-sulfur technology. In the latest development, a multinational research team has figured out how to overcome a major obstacle in the path of lithium-sulfur energy storage, by using graphene as a “bridge” between different components. In theory, lithium sulfur (Li-S) batteries possess far greater energy density than the familiar lithium-ion (Li-ion),... [Lire la suite]