[laffs] New Lithium Batteries

----- Original Message ----- 
From: Gene Hatfield 
To: LAFFS MEMBERS 
Sent: Saturday, April 02, 2005 9:43 AM
Subject: New Lithium Batteries



Subject:  Lithium Batteries

                
           
           
            Toshiba's New Rechargeable Lithium-Ion Battery Recharges in Only 
One Minute

            29 March, 2005


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            New battery offers unsurpassed recharge performance and high energy 
density 
                 



            TOKYO -- Toshiba Corporation today announced a breakthrough in 
lithium-ion batteries that makes long recharge times a thing of the past. The 
company's new battery can recharge 80% of a battery's energy capacity in only 
one minute, approximately 60 times faster than the typical lithium-ion 
batteries in wide use today, and combines this fast recharge time with 
performance-boosting improvements in energy density. 

            The new battery fuses Toshiba's latest advances in nano-material 
technology for the electric devices sector with cumulative know-how in 
manufacturing lithium-ion battery cells. A breakthrough technology applied to 
the negative electrode uses new nano-particles to prevent organic liquid 
electrolytes from reducing during battery recharging. The nano-particles 
quickly absorb and store vast amount of lithium ions, without causing any 
deterioration in the electrode. 

            The excellent recharging characteristics of new battery are not its 
only performance advantages. The battery has a long life cycle, losing only 1% 
of capacity after 1,000 cycles of discharging and recharging, and can operate 
at very low temperatures. At minus 40 degrees centigrade, the battery can 
discharge 80% of its capacity, against 100% in an ambient temperature of 25 
degree centigrade). 

            Toshiba will bring the new rechargeable battery to commercial 
products in 2006. Initial applications will be in the automotive and industrial 
sectors, where the slim, small-sized battery will deliver large amounts of 
energy while requiring only a minute to recharge. For example, the battery's 
advantages in size, weight and safety highly suit it for a role as an 
alternative power source for hybrid electric vehicles. 

            Toshiba expects that the high energy density and excellent recharge 
performance of the new battery will assure its successful application as a new 
energy solution in many areas of society. 

            Major Specifications of New Battery 
            1) Excellent Recharge Performance 
            The thin battery recharges to 80% of full capacity in only a 
minute. Total recharge takes only a few more minutes.
            2) High Energy Density
            Small and light, the new battery offers a high level of storage 
efficiency. The prototype battery is only 3.8mm thick, 62mm high and 35mm deep 
and has a capacity of 600mAh. 
            3) Long Life Cycle
            A prototype of new battery (a laminated lithium ion battery with 
600mAh capacity) was discharged and fully recharged 1,000 times at a 
temperature of 25 degrees centigrade and lost only 1% of capacity during the 
test.
            4) Temperature 
            The new battery operates well in extremes of temperature. It 
discharges 80% of its capacity at minus 40 degrees centigrade, against 100% at 
an ambient temperature of 25 degrees centigrade, and loses only 5% of capacity 
at temperatures as high as 45 degrees centigrade after 1,000 cycles. These 
characteristics assure the wide applicability of the battery as a power source 
for products as diverse as hybrid vehicles and mobile phones. 
            5) Eco-friendly Battery
            The new battery can quickly store energy produced by locomotives 
and automobiles. This speedy and highly effective recharge characteristic of 
the battery will support CO2 reduction, as the battery can save and re-use 
energy that was simply wasted before. 

            Comparison Sheet with Other Batteries  


            Comparison in Terms of Energy Density and Recharge  


                 

           

           Information in the press releases, including product prices and 
specifications, content of services and contact information, is current on the 
date of the press announcement,but is subject to change without prior notice. 
            

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