hao battery

China Development Forum, Business Summit 2011 held in Beijing. In the third unit of "high-end chain of international cooperation" as the theme of the discussion, Canadian Solar Technology Co., Ltd. Hua Xiao Qu, chairman, said in 2004, China's solar cell production accounts for 1% of the world. In 2010, dell Inspiron 2500 battery, production has more than 50%. Now in China, 95% of the solar cell manufacturers are for export, is to help the world reduce the costs.

Following is the transcript Record:

Thank you very much, Mr. Chairman. First, I should talk to share with you my own story. I was born in China, graduated from Tsinghua University, then went to Canada, then completed a degree in materials science in 1996, when I was doing some research, then Canada introduced a new technology, I was lucky to become a member, to a scientist to produce, research and development of this technology. We have a small source of funds, from a fund institution, we can use this to use solar technology to help China's rural areas. We also went to some small rural areas, including Tibet, some small rural areas.

I have the opportunity to see some small solar panels, there are some small solar controller. These controllers and battery plate is very small, it can be a small charge. But I want to talk about, so small a device can change the fate of local villagers, do not look the solar panels or a controller is very small, if we use it to magnify the scale, we can change the fate of the villagers . So, I mean, solar energy has become a major source of energy.

We have also established his own company, to develop our own solar panels. 9 years, we went to many of the top solar cell manufacturers. The size of our company is now also growing, with sales also continued to expand.

Go back to 2004, the solar cell production, China accounts for only 1% of the world,dell Inspiron 2500 battery, dell Latitude CPX battery, dell Latitude C600 battery, dell Latitude C610 battery, but more than 50% of last year. dell Latitude CPX battery, Why solar energy development in China so fast? Very simple, first, China has accumulated over the past 20 years, which many key technologies and elements of production, China has a strong eco-system in the electronics, in machinery, in the EMS, all these systems we already have , and you produce a variety of solar technologies have been in place. Secondly, we have the support of financial institutions from China, we have money to do this thing. Third, China's entrepreneurs, they have a very strong driver, to be first, and sometimes they even want to be first in the world, want to keep the expansion, which are developed rapidly in China over the past few years, the reasons .

The future, China's solar energy industry will also be to the world. Now in China, 95% of the solar cell manufacturers are for export, is to help the world reduce the costs. I think the past five years inside the world of solar panels in other countries dropped by 60%, in some countries for solar energy has been sold as retail. However, solar is still growing, for example in Germany, Germany is one of the largest solar market, the end of 2010, when Germany will install the 3G-watt solar power generation facilities, the peak generating capacity up to 65G watts. Such government subsidies, and we each unit of electricity is 20 euro cents, this is the case, and to attract the part of the Chinese manufacturers to get there.

Another part of this international cooperation, in a sense, even if there is such a fast development of PV in the industry, we still see in international trade friction is not much, why? Because I think the major countries in the PV area has occupied an important part of the industry, such as Germany, China exports a lot of photovoltaic products to Germany. But last year SCIA, is the U.S. agency responsible for the photovoltaic industry, it is that the U.S. is a net exporter of PV industry in the country, because they are at the high end of the polycrystalline aspect is very advantageous. Germany has its advantages, of course, we export a lot of PV products in Germany,dell Latitude C600 battery, in fact, all of China's photovoltaic products and technology or the use of German components in Germany, which makes the industry to complement each other, which is why we friction in this industry is not much to see.

China's PV industry also faces many challenges, one challenge is not a relevant national policy. To solve this problem or if these challenges are two options, first in China, I would like to call the Government to implement a policy of photovoltaic industry to further research and application of the localization of the PV network, power grids, through the DC DC storage applications and solutions to problems. I also hope to further increase China's investment in this area, a solar photovoltaic power generation industry and includes one of the main applications of these devices business. In other words, when the Chinese consider to go out, I would like to not only have to buy mineral resources of other countries should also be in the photovoltaic industry chain in other countries invest more to achieve industrial development of renewable
LTC6803. Global automotive manufacturing system providers and other customers have embraced the company's perseverance Linear battery pack device, and let the confidence that new models of the series the next generation of HEV and EV will deliver outstanding performance. "

The development of 3G communication requirements of the business end of the screen, 3G communications chip, such as continuous upgrading. Display input facilities to deal with, the use of a larger area of ​​the screen, use the more convenient song is not indecent man-machine interface will become a trend. Touch screen with touch, saving space for the keyboard, enabling the display to maximize; same time, the touch is the most natural way, the most indecent songs, the most convenient way of human-computer interaction,dell Latitude C610 battery, touch mobile phone as a result of this consumption of the subject indicators, shipments rising more than Shen.

LTC6803 precision performance over the feet of the latest battery needs. Are the vehicles, it can ensure accurate, safe, reliable and unbiased to a job. "

To long-term storage of the battery pack, the integrated battery management system (BMS) current consumption capacity of the battery pack may be out of balance.

Micron Technology Co., Ltd. Shenzhen Ophelia prospectus main product lines for the IR cut filter and mirror base components; now launched the second generation of Linear high-voltage battery device during the reporting period,dell Inspiron 2500 battery, dell Latitude CPX battery, dell Latitude C600 battery, dell Latitude C610 battery, the company successfully developed a flat touch-screen products; Total expenditure of the two operations accounted for sales in 2007, closed in 2008 and 2009 expenditure 69.62%, 67.71% and 77.82%. Companies with no set off outside the main products relative hazards.

After our FTTx (fiber access network) to build gradually, the three major operators and radio and television systems are identified "speed of light into the back of copper, and promote the access and little transformation" of thinking, to achieve FTTC (fiber-to-edge), FTTB ( fiber to the building),dell laptop battery FTTH (fiber to the home), FTTD (fiber to the desktop), triple play (voice networks, data networks, television networks) and other transmission and PDS (PDS system) program. Yucheng fiber-optic network to be built, in addition to a variety of necessary cable wiring layout, the introduction of fiber optic cable splicing and fiber optic network to achieve redistribution, but is E-PON, G-PON technology, but also a large number of optical devices necessary to complete the last FTTH indicators.

The design of light cut off MILPITAS, signal conditioning products CD ErikSoule vice points, said: "Until now, we sound destruction of outstanding series battery pack into that category, not exceeding two years, we are pleased to offer our customers that paragraph Enhanced Products

First, the installation of battery

Use of batteries commonly used in series, namely, a battery positive and the negative terminal of another battery connected all the batteries together,dell laptop battery the last remaining positive and negative terminals with the wiring connected to the corresponding electric cars, electric vehicle motors, controllers, electricity meter and others are battery load.

Electric cars tend to have the battery box, from the installation location divided into a slash-style, post plug-in and chassis-mount, its structure and shape are manifold. Each electric depot each other. Generally at the end of the battery box tank cover, battery contacts and charging socket, trams lock so on. At the end of slot and cover buckle, and use self-tapping screws or bolts fastening. The battery box is designed by battery model specification, and in vehicle design should be considered in its good thermal performance.

Second, battery charging

"Battery is not bad but the charge with the bad", this is simply not an alarmist, battery charger on the battery life good or bad performance, and the use of performance play a decisive role, we must attach importance to.

1, battery charging process on the requirements of

Understanding of battery charging process on the basic requirement is to analyze the basis for charging technology. Dell Latitude C600 Battery, Battery on the charge of the basic requirements are: the charge current should be less than or equal to the battery charge current can receive. Otherwise, the excess of current liquid too quickly cause electrolysis of water consumed to produce the following hazards: increased battery water loss rate, increase the maintenance workload for the maintenance-free batteries,Dell Latitude C600 Battery, Dell Latitude C610 Battery, Dell Latitude C640 Battery, Dell 1691P Battery, can cause early battery failure; produce mist, resulting in environmental pollution, health hazards to workers health; to reduce the charging efficiency, resulting in a serious waste of energy.
Charging process is the reverse electrochemical reaction discharge reaction process, if the rechargeable electrochemical reaction process carried out in an ideal state, this process should be mutually reverse reaction, that is filled into the electricity and the release of electricity should be almost equal. However, in a serious analysis of gas state, the effective charging energy consumed in the electrochemical reaction process not reach 40% of the total electricity consumption, that is a waste of electricity over 60%.

Gases within the porous electrode gathered in the batteries, reducing the electrolyte and porous electrode contact area, that is, charging the electrochemical reaction interface is drastically reduced, so that chemical reaction speed reduced charge, the charge is very difficult to extend the charging time.Gassing serious damage batteries:
① a large number of gases to the electrode active materials are scouring effect, so that active substances that can loose and shedding.

② In the high polarization voltage, the positive plate grid will produce severe corrosion, generate Pb02, the corrosion and electrochemical survival Pb02 is completely different, which is not reversible oxide, conductive poor, enable grid deformation, embrittlement, loss of the role of skeleton and conductivity.Dell Latitude C610 Battery, Therefore, in the charge should be possible to prevent the overcharge.

Less than the long-term charge, no reaction of active substances leads to irreversible high-positive large particles PbS04 grain (ie, irreversible sulfate) to enable the battery capacity decline in resistance increase, charging more difficult, resulting in early damage to batteries. Therefore, as far as possible to ensure adequate battery power, to prevent irreversible sulfation.

2, charging the choice of frequency

Battery charge cycle life on the great influence on the depth of the basic exponential change. This is because the positive active material for Pb02, the combination of fastness is not high, discharge into PbS04, charging Shiyou into Pb02, andThe volume ratio of about 2:1. Therefore, positive plate, the active material expands and contracts will be repeated so that the connection between particles gradually fall off, so that loss of battery discharge characteristics of active materials as "anode mud" so that battery performance degradation until the end of life. The deeper depth of discharge,Dell Latitude C600 Battery, Dell Latitude C610 Battery, Dell Latitude C640 Battery, Dell 1691P Battery, expansion contraction the greater the damage to the active material binding the larger the shorter life expectancy; and vice versa the longer cycle life.

In theory, should try to avoid the use of deep battery discharge, should be placed shallow ground charge, provided there is a special match matching charger. But the actual use, due to battery charging performance and battery by the charger and charge their own habits and discrete charging speed of impact than those in the higher voltage charger, charging more or less existed. In particular, charge mostly in the night time is generally 6-10 hours, an average of 8 hours or so, if the shallow discharge, the charging will soon reach the end of charge efficiency changed when low, will have been charging. Over relatively long charging time, coupled with frequent charging, battery life would make a greater impact due to charge being.
Optimal charging request according to the actual circumstances, to refer to normal operating frequency, mileage situation, Dell Latitude C640 Battery, the instructions provided storage battery factory, as well as supporting the development charge charger performance parameters such as frequency. According to the vast majority of the user's situation, battery to discharge a depth of 50% -70% of the best to recharge a battery so that battery life can achieve the best results. When converted into the actual use of riding mileage on one charge when needed.

3, the impact of temperature on the charge

Battery is running in the hot season, the main problem existed charge. Battery when the temperature increased, the activity of all active substances increase in oxygen evolution potential of a decline in positive and negative oxygen evolution potential is also reduced (negative down), so charging charging reaction speed, charge current, charge needed to charge voltage is low. In order to prevent excessive charge voltage, battery temperature should be reduced to ensure good heat dissipation, to prevent sun exposure after charging, and should be away from heat.

Battery at low temperatures, the various active substances to reduce the activity of its dissolution on the electrode becomes difficult, charging hard to be replenished after depletion, the charge current significantly decreased, when the positive plate at -20 ℃ charge acceptance of current is only at room temperature for 70%, while the negative effects of charging by the expansive agent, low-temperature charge acceptance of a lower, -20 ℃ to accept the charging current of only 40% at room temperature. Therefore, the main charge under the conditions of existence of low-temperature charge acceptance ability is poor, Dell Latitude C600 Battery, Dell Latitude C610 Battery, Dell Latitude C640 Battery, Dell 1691P Battery,charging the problem of insufficient, calling for improvements to extend the charging voltage and charging time. To improve the low temperature performance of the main set should be negative. Antifreeze should be taken to use low-temperature thermal insulation measures, in particular charge should be placed in a warm environment,Dell 1691P Battery, conducive to ensure adequate electricity, to prevent the irreversible production of sulfuric acid to extend battery life.

During the storage and use of batteries can be activated periodically charging the so-called equalizing charge, which is irreversible sulfate to prevent the battery is very good for battery life is very good, worth advocating.

Last year, December 1 ~ 12, the domestic lead prices have driven up steep decline, from 1.7 yuan / ton plunged to 8,000 yuan / ton, after which lead prices soaring again to 1.1 yuan / ton, while the London Metal Exchange Lead prices have been 1000 U.S. dollars / ton minor fluctuations.Dell Latitude X300 Battery, At this point, coincides with the peak season on the eve of lead-acid battery production, companies are a large number of lead materials purchased by the unexpected sharp price fluctuations,Dell Latitude X300 Battery, Dell W0465 Battery, Dell Inspiron 2000 Battery, Dell Latitude LS Battery, staggered businesses even worse.
To this end, China Electrical Equipment Industry Association, lead-acid storage battery branch company has an urgent basis to discuss the governing response. The participants agreed that the recent offer domestic lead material to deviate from international prices and the magnitude of changes in a short time such a far from satisfactory.
Branch of China Nonferrous Metals Association, lead, zinc, Zhao, deputy director of January 8 Thuy Thanh told the China Industrial Daily News reporter, lead the procurement of materials were mainly for battery manufacturers, over the years the relationship between the buyer and seller is relatively fixed, the purchase price is a rule of thumb dependent. In his view, in recent years, battery increasing number of enterprises and traders, so the market should be standardized lead prices.
Prices were being manipulated
Lead-acid storage battery branch of the Iraqi Xiaobo told reporters: "As a result of U.S. financial turmoil, traders and smelter in varying degrees of lead loss. In December last year, lead the market becoming more and more stable prices, this is the revitalization of reviving a good opportunity, but some traders took the opportunity and some units are jointly raise their purchasing prices, smelter as well as to rush through the price increases to compensate for the early emergence of the financial crisis losses to the traders and some lead given with high-priced units. "
Lead prices have been pushed up rapidly after black-box operation last year, December 10 domestic lead prices away from the international lead prices rose to 1.1 contrarian yuan / ton, higher than the international market price per ton of lead Lead price 2000 yuan, and in a short time oscillation of frequent stretching.
The branch chairman Fan Guang-Yu told reporters, lead, lead-acid battery is the main production materials enterprises, accounting for more than 70% of manufacturing costs, lead prices soaring, the battery manufacturer cost pressure can not be shifted downstream, only themselves, and some Enterprises thus sapped.
Power Co., Ltd. Zhejiang Chao Wei, vice director of strategic sourcing Wan Li Wang told reporters, and now lead the re-rendered irrational rise in prices. Dell W0465 Battery, When the price crossed the million mark, the battery manufacturer may choose to re-price adjustment.
Any business faced with the cost exceeding 10% of the changes is a must to consider. Is losing money to maintain sales, or raise prices to ensure that enterprises are not a loss? At present the choice of battery production enterprises is undoubtedly an extremely passive. However, for most enterprises, the loss-making market transactions will not be too long.
Buyer's lack of voice
"The current bid has been a seller's market-based, there is no taking into account the buyer's market." A lead-acid battery manufacturer person in charge, told reporters.
Shanghai Nonferrous Metals Trade Association Information Service Center, general manager of Tong Yue Shen said that the pricing of the past,Dell Latitude X300 Battery, Dell W0465 Battery, Dell Inspiron 2000 Battery, Dell Latitude LS Battery, lead materials mainly come from several major smelter quotes, belong to a seller's market. The future, we would also like to listen to the voice of the battery production enterprises in order to more accurately and objectively provide you with a reference price of lead.
The use of lead-acid battery industry accounted for the total production volume of China's lead in more than 65%, while the industry involved in pricing the right to speak was small. "The reasons are manifold, on the one hand, trade associations, and the upper reaches of the lack of communication between industry and related sectors, there is no active participation in the pricing of raw materials, markets work; the other hand, the battery manufacturer purchases are too scattered, there is parity, keep the prices down so vicious competitive behavior. "Iranian Xiaobo said that these factors have led to confusion in the current market price of lead.
Wang Wan-li also told reporters that the lack of business the right to speak lies the crux of the procurement method of payment. It is understood that trading in the lead most of the material is "the first paragraph after the goods" in the money to pay, Dell Inspiron 2000 Battery, the battery manufacturer completely lost the right to speak, although the seller by the time difference between the buying and selling, all of the risks and pressure onto the buyer. Called standard pricing rules
Yi Xiao-bo said: "There is no non-ferrous metals like lead, like focus on one industry, while enterprises are unable to participate in lead-acid battery market pricing is obviously unfair and unreasonable. We call upon and advocated the establishment of a fair pricing platform."
At present, the Shanghai market's offer is the reference price of lead procurement of the main guides. For a long time, affected by various factors, the quotation does not accurately reflect and embody the interests of the relationship between supply and demand, the lack of scientific and impartiality. To this end, the battery manufacturer requirements lead the market in Shanghai, the offer by a certain right to speak. The Branch hopes to form purchasing alliances governing unit, price-fixing cartel, actively involved in pricing the work.
Wang Wan-li also proposed to change the procurement method of payment. In his view, the international multi-smelter in the purchase price paid by way of a letter of credit, which means not only the financing channels for the smelter, but also can reduce the buyer's market risk. Large number of participants of the lead-acid battery business representatives believe that the long run, China should establish a mature market price of standard lead, eventually need to form a market-driven pricing platform. Zhao Cui-Qing, said: "The current price of lead is only quotes, rather than the actual market transaction prices, the establishment of futures markets will effectively regulate the market price of lead.Dell Latitude X300 Battery, Dell W0465 Battery, Dell Inspiron 2000 Battery, Dell Latitude LS Battery, Branch of China Nonferrous Metals Association, Lead and Zinc Development and Reform Commission and relevant departments many times to reflect and recommended the introduction of Lead futures, which have been lead futures has yet to launch. "
"At present, China's futures market is more mature, lead enters will be a natural thing." Dell Latitude LS Battery, Wanli Wang told reporters, companies also hope that as soon as possible lead futures. According to the latest news, industry associations in Zhejiang Province, convened by battery, Zhejiang Changxing area battery manufacturers have taken a collective price adjustment measures.