Good Battery

While still with an organic solvent, but otherwise is a new composition, to improve battery energy density, the lithium – air-batteries. In this experiment, the Japanese Institute of Industrial Science and Technology and Japan Society for the Promotion has a new structure of lithium – air developed batteries.

Lithium – the concept of air batteries have long brought up. Due to the positive use of oxygen in the air as the active material, so that the infinite capacity in the theory of positive density can increase the capacity. In addition, the use of lithium metal anode, theoretical capacity than lithium-ion battery  to improve name a few.

However, lithium – air battery, if not one of popularity. The reason is, there is a fatal flaw, namely, the solid reaction products, lithium oxide (Li2O) accumulate in the anode, so that the electrolyte were cut off contact with the air to meet what is not anymore.

Made in Japan & Research Institute, divided into two types of electrolyte solution to this issue. In the negative (lithium) side of the use of organic electrolyte in the cathode (air) side of the use of aqueous electrolytes. Between the two electrolyte lithium-ion only through the solid electrolyte membrane set to share them. This will prevent the electrolyte mixture, and promote responsive battery.

Use of lithium metal anode. Cathode is used in combination with the electrolyte containing organic lithium salt electrolyte. While we can not let you down the organic solvent, but it limits the use. Water-based alkaline electrolyte cathode with water-soluble gel, and after the micro-based catalyst for the formation of oxides of carbon and low-cost connection from the positive.

Generated in the cell, by the discharge reaction is not a solid Li 2 O, but readily dissolved in the aqueous electrolyte in the LiOH (lithium hydroxide). Therefore, the oxidation of lithium accumulation in the air after the electrode will not cause the work was stopped. In addition, water and nitrogen through the solid electrolyte and not next door, so there is no place with a lithium metal anode reaction risk. Moreover, competent when the configuration-specific positive charge, but also to prevent conductive load induced corrosion and deterioration of the air electrode.

To 0.1A / g discharge rate of discharge, the discharge of about 9000mAh / g. The former Lithium – air battery discharge capacity of only 700 ~ 3000 mAh / g, can be said to achieve a substantial increase in capacity.

In addition, the use of an aqueous solution is to replace the water-gel in the air are 0.1A / g discharge rate of the continuous discharge for 20 days, the discharge of approximately 50,000 mAh / g, a figure higher than the original. Since the lithium metal battery capacity had as lithium-ion battery a high number, so that the value of more than tens of lithium-ion batteries high range. High-performance solution, but in the use of even facilitate better on the gel. In the future, need to consider which of these two, one for development.

This technology could also consider using an easy-to-use batteries of different ways. If no battery charging, but replace the cathode through the electrolyte aqueous base to card boxes, etc. to the lithium metal anodes enrichment, cars will not need to charge waiting time, immediately. Through the recycling of used water-based electrolyte, the electrical means for regeneration of lithium, but also a multiple use of lithium. One can say, is a new type of lithium-powered fuel cells.dell inspiron 1100 battery,dell inspiron 1150 battery,dell inspiron 1300 battery,dell inspiron 1420 battery,dell inspiron 1501 battery,dell inspiron 1520 battery,dell inspiron 1521 battery,dell inspiron 1525 battery,dell inspiron 1526 battery,dell laptop battery .

This year, with the introduction of a new energy policy and the Government of solar energy-intensive change in attitude: from a “positive guidance” to the “strategic importance” as the A-share market’s only pure photovoltaic concept stock, expand the New can stock from Along the way the beginning of less than 11 yuan rose to 34 per around, or up to 200%. 

New Extension revenues can come from three main business, in 2008 the company achieved total operating income of 290 million yuan, net profit of 73 million, the product mainly for the overseas market, the proportion of exports to reach 90%. Among them, civil solar cell products, accounting for 40% of main income; amorphous silicon solar cell chips and components accounted for 31%; crystalline silicon solar cell chips and components accounted for 29%. The company achieved sales of amorphous silicon solar products 13MW, crystalline silicon solar product sales 5MW. Companies in the past three years average sales growth rate of 30%, with an average profitability rate of 24%, the overall business, the average gross margin of 36%.

Mainstream products as solar cells, crystalline silicon solar cell stability, conversion efficiency, in the future the market will continue to occupy a dominant position. However, crystalline silicon solar cells due to a more mature product, gross profit margin is not high, the international large-scale enterprises generally also maintained at 17% ~ 20%.

Amorphous silicon thin-film batteries for low-cost, high margin (50% or so) and good potential for development is becoming the current international and domestic solar energy manufacturers favor the new area. In 2008, Rio New amorphous silicon solar cells can be accounted for revenue ratio of 31.28%, gross margin reached 47.39%.

Although the conversion efficiency is low compared to crystalline silicon solar cells there is a large gap, however, in view of crystalline silicon industry, intense competition, excessive reliance on silicon raw material, and the high cost of the current international and domestic solar manufacturers have begun to have involved in a-Si the field of solar cells.

As a second generation of the representation of amorphous silicon thin film solar cell business by expanding the New in amorphous silicon solar cells technology and equipment has a strong independent research and development strengths, and the customers are mostly long-term customers, relatively stable, the company’s non – crystalline silicon solar cell production and export volume ranks fourth consecutive year, China’s first. Si production line as the company more than 70% of their own R & D, manufacturing facilities, dependence on imported production equipment compared to other similar companies, the company’s substantially reduced the cost of the product’s gross margin is much higher than the industry average.

However, the financial crisis, in October last year, the photovoltaic industry in product prices and demand situation faced by dual-drop this year, a quarter of poor performance, net profit fell 36%, the second quarter, although improved, but the short-term point of view, foreign demand remains sluggish, the industry is still no significant improvement in the plight of the products exported more than 90% of the extension is still optimistic about the New to business performance.

As companies Leshan industrial park’s construction and new production lines reach capacity, the company will increase production of double battery business, performance will be increased dramatically. However, in the industry, attracted by high margins and other solar energy companies springing up like a production plan is bound to lead to future competition in the field of amorphous silicon solar cells increased, the level of downside risk margins.

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