Hitachi Maxell yüksek güç yoğunluklu lityum iyon pil- new lithium battery


li-ionHitachi tarafından duyurulan yeni lityum iyon pil, daha önceki lityum iyon pillerden 1.7 kat daha az alan kaplarken, 4500W/kg yoğunluğuyla aynı zamanda daha hafif.

Günümüzde elektrikli otomobillerin daha geniş kitleler tarafından kullanılmasının önündeki en büyük engel, motorlarına güç veren pillerin otomobilin ağırlığının neredeyse yarısını oluştururken, aynı zamanda oldukça büyük yer kaplıyor olmaları.NTVmsnbc.com

Hitachi Boosts Energy Density of Li-ion Battery for Hybrids
Hitachi Ltd and Hitachi Vehicle Energy Ltd announced May 19, 2009, that they developed a lithium-ion rechargeable battery with an enhanced power density of 4,500W/kg for use in hybrid electric vehicles.

The new battery uses prismatic cells, which the company positions as the fourth-generation product. The cell measures 120 x 90 x 18mm. And it has a current capacity of 4.8Ah, an average voltage of 3.6V and an energy density of 72Wh/kg. The companies will start shipping samples for auto makers, etc in fall 2009.

Daha küçük ve daha hafif piller, daha geniş kullanım alanı sağlayacağından bu tip otomobillerin daha fazla tüketicinin ilgisini çekmesi ve daha büyük bir pazar yaratılması açısından büyük öneme sahip.

Hitachi Ltd and Hitachi Vehicle Energy Ltd announced May 19, 2009, that they developed a lithium-ion rechargeable battery with an enhanced power density of 4,500W/kg for use in hybrid electric vehicles.

The new battery uses prismatic cells, which the company positions as the fourth-generation product. The cell measures 120 x 90 x 18mm. And it has a current capacity of 4.8Ah, an average voltage of 3.6V and an energy density of 72Wh/kg. The companies will start shipping samples for auto makers, etc in fall 2009.

Hitachi is currently providing the second-generation cells for Mitsubishi Fuso Truck and Bus Corp’s hybrid buses and trucks. Hitachi is planning to mass-produce the third-generation cells in 2010 with a monthly output of 300,000 units and provide them for General Motors Corp’s mild hybrid vehicles, etc.

The third-generation product is a cylindrical cell measuring 40mm in diameter and 92mm in length. It has a current capacity of 4.4Ah, an average voltage of 3.6V and a power density of 3,000W/kg. Therefore, the power density of the fourth-generation cell is 1.5 times as high as that of the third-generation product.

The fourth-generation cell features a prismatic shape, which has a high cooling performance and makes it easy to expand the surface area of the electrodes and improve the power characteristics. Furthermore, the company optimized the particle design of the Mn-based positive electrode material. The negative electrode material is amorphous carbon as in the case of the existing products.

With the drastically enhanced power density of the fourth-generation cell, the weight and volume of batteries to be used in hybrid vehicles can be reduced by approximately 40%, according to Hitachi.

At present, the cost of the fourth-generation cell does not match that of nickel-metal hydride (NiMH) secondary batteries. But the company expects that “the cost will be lower than that of NiMH secondary batteries in the future.” It aims to start volume production of the fourth-generation cells in 2013.

The new cell is scheduled for display at Automotive Engineering Exposition 2009, which runs from May 20 to 22, 2009, at Pacifico Yokohama in Kanagawa Prefecture, Japan.

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22 Mayıs, 2009 tarihinde Elektrik, Electric, Enerji, Energy, Hibrit, hybrid içinde yayınlandı ve , , , , , , , , , , , , , , , , , , , , olarak etiketlendi. Kalıcı bağlantıyı yer imlerinize ekleyin. Yorum yapın.

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