Archive for October, 2009

Sony Camera Battery explosions: Sony said it was counterfeit batteries

Posted by admin on October 30, 2009
Uncategorized / 2 Comments
A charge in the Sony camcorder battery suddenly exploded, the idea being next to the machine, Mr. Internet injured. Sony said after the service personnel went to check the machines are original, but the battery was “out of hand plus workshop to do a” fake goods.

Mr. Zhang said the camera had never been bought to replace a battery, while the camera dealer insisted it was “normal factory produced”.

13 am, living in a district of the Chang Yi Tamura will be home to Sony30E Sony cameras plug in the power began to charge their own Internet access in the next half an hour later, the charge of the batteries exploded.

Mr. Zhang, now a taxi and went to Shenzhen City, two hospital bandaged the wound, it was diagnosed, Mr. Zhang left ear congestion, the Ministry of the right shoulder burns, there are about one centimeter long wound.

Reporter yesterday at the scene saw the explosion was blown into the dell Inspiron 1300 battery for at least 56, including a significant expansion of deformation, debris generated by explosions and black powder all over the house, an explosion will be next to a fan base of the camera has burst.

All of the reactions

Sony: machine is the original, the battery is a fake

After the explosion, Mr. Zhang contacted Sony after-sales service stations in Shenzhen. 14, the Sony’s three staff members came to Mr. Zhang, home inspection, followed by telephone inform them of their machine is Sony’s original, but the battery is not original Dell Inspiron 1300 battery, if you want to identify genuine and fake batteries should be returned to the designated buying the maintenance of point to test.

Reporter followed by telephone inquiries Sony after-sales maintenance department of Shenzhen, the staff member said that the camera is an original battery number is 50, while the explosion of the battery number is 70.

In addition, the staff member said that the piece of battery explosion, “there is a piece of metal, is equipped with weight, we have (sony) is that the battery is a multi-multiple, there will be no weight, this (the explosion) batteries Dell Inspiron 1520 battery, Dell Inspiron 1525 battery is done by hand plus workshop out of something “is a fake.

Dealer: Yes, certainly “regular factory produced”

Mr. Zhang to find out the purchase of this camera when an invoice shows that this camera is a SONY Taiwan October 17, 2004 in Weinan City, Shaanxi Province in international trade to buy commercial invoice marked on the battery pack, with sales, together with the camera The.

Mr. Zhang said that the video camera to buy after the dell Inspiron 6000 battery has not been replaced. Phone calls from reporters asking commercial international trade of Weinan in Shaanxi, the commercial service department staff, said: “definitely normal factory produced, we have signed a contract with the gate-keeping.”

Currently, Mr. Zhang, in addition to the hospital for 23 days would also like to review, but also is waiting for Sony’s battery identification results in writing, waiting for the result came out to look for relevant departments to resolve the matter.

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Nissan-NEC joint venture vehicle has started test production of lithium batteries

Posted by admin on October 29, 2009
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Belgian research institute IMEC has announced the trial in the thickness of the active layer as thin as 10μm silicon solar battery, but also received 7.5% of energy efficiency. Reduces the thickness of the new laptop battery to reduce the amount of silicon can be said that the development of high efficiency solar cells a step forward.

IMEC, before they are committed to the achievement of silicon thin film crystalline solar cell technology issues. Prior to that, solar cells in monocrystalline silicon is equal to or greater than the thickness dell Inspiron 1501 battery,dell Inspiron 1520  of 150μm, must make a lot of silicon. This reduces not only the thickness but also by the growth of the rule of law in the layer of silicon crystals, and therefore did not produce cutting debris, and can significantly reduce the amount of the benefits of silicon.
  
However, if you only reduce the thickness of the case, now there are only 1 ~ 2μm thick amorphous silicon solar cells. However, the efficiency of solar cells in amorphous silicon on a single node where the limit is 6 ~ 8%.

The production of solar cells is the following: the adoption of post-treatment to be part of the glass for crystallization of the glass ceramic substrate (IMEC) to form a thin layer of crystalline silicon species, and therefore, in its top so that the activity of monocrystalline silicon layer epitaxy (epitaxial) growth. Obtained a slightly higher yield than the 7.5% energy efficiency of solar cells in amorphous silicon, but is expected to slightly adjust the structure of the electrode IMEC can be more than 9%. In addition, reflection “Light and light sealing structure has not yet been any improvement. If you include these improvements are  Dell Inspiron 510m battery, Dell Inspiron 600m battery expected to 5μ ~ 10μm thick with cell activity in crystalline silicon solar to over 15% efficiency (IMEC).

IMEC said: “In the long term we hope to develop the method without the need for epitaxial growth, which further reduces costs.” The agency has tried to adopt an annealing process of porous silicon (sintering) METHOD prototype solar cells. Achieved an efficiency of 2.6%.

Sharp with 35.8% conversion efficiency of solar cells refresh folder

Posted by admin on October 29, 2009
Uncategorized / 3 Comments
“Effectiveness is near the internal combustion engine. This is the conversion laptop battery efficiency to achieve the ideal of breaking 50% of solar cells in the process of a major breakthrough” (Sharp). Recently, Sharp, the conversion efficiency of solar cells has reached a record high of 35.8%. If the condenser to 1000 times the conversion efficiency is also expected to reach 45%.

Technical Sharp’s new series in development. The goal is 1 / 10 the cost of non-condensing unit when the conversion efficiency exceeded 40%. To go beyond 40% as the goal is not to intensify the development of a Sharp. To achieve high solar cell efficiency, technological development of competition are becoming more active.
  
Before that, the greater efficiency of conversion is the U. S. NREL (National Renewable Energy Laboratory) in 2007, created by 33.8%. Collapse in conditions of maximum efficiency is the United States Spectrolab dell Inspiron 1100 battery,dell Inspiron 1150 battery have just learned in October 2009 of the 41.6% posted. Including Sharp, including the results of this and create a register of all compounds for the three-in-style multi junction solar cells.
  
The conversion efficiency of solar cells to the limit and need to combine different band gap materials to take full advantage of the different wavelengths of light. Sharp focus on the past, the simplicity of manufacture, the network chooses continuous close to the matter. Namely, the upper unit (upper three branch structures) of InGaP, unity (ibid., middle) as InGaAs at the end of the unit (ibid., below) for GE, bottom GE.
This time, Sharp to optimize the band gap for the first at the end of the unit Ge (bandgap of 0.67EV) of InGaAs (ibid., 0.97eV) substitution, using InGaP (top) , GaAs (China), InGaAs (bottom) GaAs combinations of motherboards. Accordingly, pursuant to the order from top to bottom, short, long wavelengths of light can be applied effectively to generate electricity.

Solve the problem by the Counter-Cascade

This association exists InGaP and GaAs lattice constants, and the lower layer of other issues quite differently. This phenomenon may give rise to crystal defects, it is difficult to obtain high yields. To that end, Sharp  shot the film on the order placed through the use of the InGaP (top) has begun to turn film “inverse method cascade training” so that the lattice constant of GaAs substrate mainly consensus. Through constant mesh of different GaAs (middle) and InGaAs (bottom) inserted between the buffer layer, defects inhibition. Taking into account the transmission wavelength, the buffer layer and cover with InGaP.

Forming using the method of the inverse cascade InGaP (top) has begun to turn to the superposition of InGaAs (bottom), three GaAs substrate layer need to separate InGaAs (bottom) up the substrate layer If the transfer. InGaP layer in a direction to the surface. Liaison with the substrate if use is “similar to the welding material (Sharp).

In addition to more efficient, the method can also reduce costs in the future. GaAs separation process of the substrate is currently used by the method of curettage GaAs substrate. If in the future to take advantage of plug stripped down, wishing to give up part of the implementation of ion implantation and other methods to complete the process, then GaAs substrate is expected to enable reuse. As the GaAs substrate is very expensive, thus making this method can reduce costs considerably.

With these improvements, “and crystalline Si-strong double digits,” should reduce manufacturing costs to the current 1 / 10. Its use is currently limited to satellites but with lower costs in the future, may also be extended to other areas.
  
Increasing the efficiency of conversion does not stop there. 2025, Sharp plans to develop a conversion efficiency of cells by 40%, 1000 times the condenser when the conversion efficiency of 50% solar cells revolutionary. With the InGaAs (bottom) following the addition of new layers, for up to four multi resultant junction solar cells. The methods of manufacturing is still the method of inverse cascade training. In addition to the difference of different bandgap materials, the use of quantum dots layer Gap Band control is set to become a new layer.

South Korea’s LG and Taiwan’s AU Optronics (AUO) is scheduled for “Green Device Forum 2009″ (10/28 ~ 10/30) wished to explore the activity of solar cells and strategy seminar solar cell technology.