luglio 12, 2015
The new geration of lithium batteries has half of weight and size. Here a picture comparing the Winston cell (old technology) with the new cell developed by a chinese factory.
marzo 10, 2015
Appena 4 mesi fa ha fatto scalpore la notizia da Singapore, dove un gruppo di ricerca della Nanyang Technological University (NTU) ha realizzato una batteria al litio con gel al diossido di titanio in grado di ricaricarsi in appena 2 minuti fino al 70% e una prospettiva di vita di 20 anni. Il diossido di titanio (TiO2) è comunemente noto come additivo alimentare ed ingrediente per le protezioni solari ma, si è dimostrato capace di accelerare le reazioni chimiche che si innescano nei processi di ricarica e rendere la batteria piu’ durevole nel tempo. Sebbene la tecnologia sia estremamente recente, segnaliamo la presenza nel mercato di costruttori di batterie al litio con diossido di titanio (LTO). Le specifiche di queste batterie non sono standard per tutti i costruttori, quindi quelle a seguire sono le caratteristiche relative a celle da 40Ah prodotte da un costruttore cinese.
La tensione nominale e’ 2,3V e la capacita’ e’ riferita ad una corrente di scarica di 1/3CA (in questo caso 13A). Le singole celle pesano 1,7kg e hanno dimensioni di 27,5×13,5×3 cm. Queste celle dopo 30000 cicli mantengono una capacita’ di accumulo pari all’80% di quella originale. Risultati interessati forniti dal costruttore a seguito di test compiunti una temperatura ambiente di 20℃ e un aprofondita’ di scarica del 80%. Con performance di questo tipo un pacco batterie potrebbe tranquillamente funzionare per almeno 30 anni senza che le batterie vengano sostituite.
Ideali quindi per sistemi di accumulo per Smart Grid e veicoli elettrici dove la durevolezza e’ messa a dura prova nel caso di un utilizzo intensivo. Per maggiori informazioni: contattateci
dicembre 16, 2014
Great news for e-mobility of the near future, the spanish company Graphenano (industrial-scale graphene production company) developed a new Graphene polymeric lithium battery.
Graphene is the thinnest , hardest material in the world, came out in 2004 , its discoverer , University of Manchester Andre – Heim (AndreGeim) professor who won the Nobel Prize in Physics in 2010.
Such graphene polymeric material has longer battery life, up to four times the conventional lithium batteries. And because of the characteristics of graphene to be very thin (one mono-atomic layer), this battery is only half the weight of conventional batteries, making the load of the car more lightweight , thereby improving vehicle fuel efficiency.
Graphenano company reference person says its cost is not high. It will cost 77% lower than lithium batteries available in the market now.
The material have been developed with the University of Cordoba and the storage capacity reach 3 times the current batteries allowing cars to run for 1000 kilometers and a charging time lower than 8 minutes..
Graphenano company plans to put into production this battery in 2015, rumors says a German car company (not yet disclosed) is testing the battery this month.
dicembre 5, 2014
I recently read “Graphene is the future, the future is now”. If you already read my posts you will see some strange solid-state graphene based batteries can self-charging. You might think it is only patological science, but here you are an important news from Nokia. We can say this innovation has got truly revolutionary potential.
Nokia is one of the leaders in graphene based research work and mainly on prototyping optical sensor based on graphene. Now Nokia has just patented a self-charging graphene based photon-battery.
The generation of protons is facilitated by the presence of water. The configuration of the GO electrode with the water and the higher pH media renders the battery 300 a dynamic battery. In other words, the battery 300 is capable of regenerating itself immediately after discharge through continuous chemical reactions. In particular, the battery 300 may be automatically charged back to open circuit voltage without an external energy input. The result is a low-power, energy-autonomous device.
It may use humid hair to recharge itself:
During operation, the battery 300 can generate an open circuit voltage on the order of about 1 volt (V) when in the presence of humid air (for example, when the relative humidity is about 30%). The battery 300 also exhibits a fast recovery of its voltage within a few minutes after being fully discharged and without the application of external energy.
If this innovation is not enough, they say it even can be printed on flexible substrates for making a flexible battery or can be made highly transparent.
The battery 300 can be made flexible using printing technology. For example, the battery 300 can be printed onto a flexible substrate. The battery 300 can also be made to have highly transparent optical properties or elastomeric properties.
ottobre 6, 2014
Here an example of mass production of lithium ion cells for energy storage facilities under development by Glidepath. Three 20-megawatthour facilities would be located in McHenry, Joliet and West Chicago.
Each facility will be made up of nine containers that house the battery power components. They will sit on about 4 acres and work with traditional power plants by switching from charge to discharge mode as needed to provide customers with a stable power supply.
The containers are similar in size to a storage or shipping container. They house all of the racks collecting lithium ion batteries. They are equipped with a climate control system and monitors to track performance.
Inside each container holds 20 to 30 energy storage racks stacked much like a computer server.
The container hold about 80,000 lithium-based batteries, each battery are about 1.5 times the length of a D cell battery.