Solar cell technology breakthrough: 40% conversion efficiency of super -

U.S. Department of Energy (DOE) announced a new solar cell, the conversion rate of more than 40%. The battery is produced by Boeing-Spectrolab, through mirrors and prisms to increase the battery into the sun. DOE said that the price of this battery-three dollars per watt, producing electricity cost of 8-10 cents / per kilowatt-hour.

Traditional solar cells conversion rate is only about 15%, while the new battery to use this concentration relatively low-cost mirrors and prisms to focus sunlight on to the battery on the more expensive gallium arsenide part to improve the conversion efficiency.

Spectrolab’s forecast current technology conditions, the conversion efficiency of solar cells could eventually reach 45%.

Light fuel cell vehicles are expected to enter the market within five years

Automobile manufacturing sector, according to a schedule, starting in 2010, sales of economically viable fuel cell vehicles will enter the market. To this end, Tongji University Automotive Institute has launched this future vehicles, “lightweight” research to try to overcome the fuel cell vehicle power system too much weakness. The news was announced yesterday by the Shanghai Academy of Sciences sponsored by the Center Fellow Sharon learned information.

From the last century, 90 years since the introduction of fuel cell vehicles, which rely on hydrogen, oxygen, chemical reaction-powered cars have been generally optimistic about the industry, is considered the best alternative to internal combustion engine vehicles, one, because it not only saves oil, and will not cause any pollution. But at the moment, our R & D of fuel cell vehicle power system weight of 200 kg weight than ordinary cars as it enters the market a major “stumbling block.” To this end, Tongji University started a series of lightweight vehicle research and development program, the hospital developed “beyond the numbers” series, locked in the target weight of 1351 kilograms. According to Dean Yu Zhuoping introduction, they are for the fuel cell vehicle batteries, body material, structure and other aspects worked out a detailed weight loss program to promote such future automotive market as soon as possible.

Lithium-ion power battery production line

Shanghai, already have produced lithium-ion battery cathode materials capabilities and technologies, to be lithium-ion battery separator production capacity in the city to form after they have met all the conditions for production of lithium-ion batteries and foundation. Project construction content and scale: annual output of 1.8 million lithium-ion battery. Market Analysis: Lithium-ion batteries are widely used in mobile phones, notebook computers, video cameras and other portable electronic products, lithium-ion battery can also serve as hybrid electric vehicle power supply, as well as aerospace, deep-sea areas such as the charging power supply operation. Lithium-ion battery with the traditional nickel-cadmium, nickel hydrogen batteries, compared with a high specific energy, long cycle life, no memory effect, security, pollution-free and fast charge and discharge, etc., it is estimated that China’s current account for lithium-ion battery production for more than one-third of the world’s total. At an alarming rate to gradually replace the nickel-chromium and nickel-metal hydride batteries, and has become a major consumer electronics products, power supplies, from China and the global market perspective, the market potential for lithium-ion batteries is enormous.

Global prices laptop battery shortage

Since August this year, Dell laptop due to the existence of the company had to fire risks Sony laptop batteries recalled Sony batteries have been plagued by the problem, Apple, Lenovo and other major notebook manufacturers also have to recall defective Sony battery. Today, the recall of army recruits have added a.

Last weekend, the Japanese electronics maker Sharp Corp. announced that the company will soon start the recall plan, have been sold to recall 2.8 million Sony laptop batteries.

At the same time, Japan’s Fujitsu is also the official Web site announced that the company will be an additional recall of 51000 Sony laptop batteries. Earlier this month, Fujitsu has launched a worldwide recall 287,000 Sony laptop battery plan. At this point, Fujitsu to recall Sony batteries, the total number of 33.8 million units.

Yesterday, the reporter learned from Sony China, the two companies announced before the operation is Sony’s recall part of the plan. The company late last month announced a plan to recall Sony laptop batteries. Sony China’s press spokesman Kang, said: “Sony plans to recall the statement before, whether or not to recall notebook production company solely by its own decision.”

The batteries are in Japan

“It’s 28000 Sony laptop batteries in Japan, domestic sales do not involve overseas.” That day, Sharp spokesman Hiroshi Takenami said.

Sources said that prior to Apple, like Dell’s recall of Sony batteries, Sharp in this recall defective batteries may also be in use during the short circuit, which led to overheating and even fire.

Previously, Sony had said that when the metal particles and some of the problematic position of the battery contacts, a rare short-circuit phenomenon may occur.

However, Fujitsu does not disclose the flow of additional battery recall problems. The company only said that after the receipt of additional information about Sony, Fuji-rounder has taken an additional recall.

Other products not already covered

Sharp with the latest recall of events, since August this year, a total of 7.7 million Sony laptop batteries recalled by the major notebook companies, while the greatest number or Dell, there are 4.2 million.

As the battery is not only confined to the Sony laptop battery products, the industry’s widely speculated that Sony, the battery recall will be enlarged, involving other electronic products, batteries, such as DVD players, music players and Sony PSP game console products such as batteries .

Sony China’s Healthy yesterday in response to this argument by saying: “At present, the company recalled products are also limited to the laptop battery recall does not extend the scope of the evidence.”

The recall also makes Sony faces a huge crisis of confidence. At present, the company is still assessing a series of financial impact of the battery recall. While the recall may have little effect on Sony’s financial performance, but many well-known customers roll in. They all think that the Sony battery recall culprit.

Cause the battery out of stock prices

The recall is not only a direct impact on Sony, Apple, Dell and other companies, other global battery manufacturers are also subject to a certain extent, lead to rechargeable batteries in short supply, prices and delivery delays and so forth.

Taiwan chin, electronics, Hongliang businesses and resistant to battery 3 battery maker, says that Sony laptop battery recall program led to shortages, this situation will continue until next June. Analysts believe that the battery shortage may reduce the notebook and portable music players and other electronic products in the sales this Christmas shopping season.

Because of shortages in Taiwan, over the past 3 months the battery prices rose about 15%, and there are once again rising trend. In addition, the order of the customer needs to wait for the previous two months time. Sanyo, Sony is second only to the world’s second largest rechargeable battery maker. Sanyo and Samsung came in third place, currently do not have enough capacity to meet market demand.