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From the U.S. sub-prime mortgage crisis has also led to the deterioration of the real economy, China’s economy is also not spared. Environment in the economic downturn, the automobile manufacturing and other industries are struggling, operating difficulties: increased drop in order to reduce escalating costs, start down. The end product will undoubtedly give the consumer back the tide in the market face even greater challenges. By the beginning of the financial sector for corporate finance crisis, the natural environment to create new challenges. In procurement, the lead material as the focus of the cost of materials, lead-acid batteries has been the focus of the enterprise. The new form, the procurement of materials will undoubtedly lead to become lead-acid battery business will be more sensitive nerve. 
 
Lead material purchase the vast majority of the implementation of the whole paragraph to pay after the delivery. For such a payment method, no doubt, so that battery companies must be provided in the material procurement of more fully funding. For enterprise liquidity requirements in relation to other end-products is higher. Driven up the price plunge in the past two years has kept the procurement companies saddled with more serious pressure. Fluctuations in market prices for the security of the assets can not be effectively protected. 
 
On the other hand, traders even take advantage of “first paragraph after the goods” rule, by the time difference between the purchase and sale to avoid market risks, by the time difference to play the price differential. Purchasing because of scattered and insufficient understanding of the  battery market, traders constantly being profit. At the same time, as a low cost speculative traders in the market, but also makes the procurement of funds to pay security of the formation of new pressures. From time to time also heard that some companies complained that because of the sharp price rise, while the traders a refund cancellations things. Although the loan security is not affected, but the timing of the procurement been pushed back, and procurement costs are magnified human factors. 
 
After payment of the purchase price, purchasing enterprises for the price of lead ingots, they will lose the right to speak. The factory is currently priced at more than reference to metallurgical enterprise Shanghai Nonferrous Metals net. The reason is that they are purchasing units in Galena with the supplier pricing rules agreed upon benchmark Shanghai Nonferrous Metals net parity. As for the international market, the smelter more use of letters of credit as a means to pay the purchase price. Such payment, for the smelter is a financing method, but also reduces the purchase risk. 
 
As for the battery businesses, to pay the full payment in advance of the occasion, had also lost their dominance of market pricing. For example the comparison by year, the Shanghai Nonferrous Metals net by the end of 2007 the price range of online bulletin beginning to narrow in 2008 remained at 200 yuan. Before that, the daily quotes the general range of about 400. While battery enterprises in the daily procurement process, the role and significance of parity is not too much. However, prices for metallurgical enterprise in the mine was maintained a decline in the level of 100 yuan. Each smelter practical because the Shanghai Nonferrous Metals net up and down the same day quote to benefit from closer range of at least 100 yuan per ton. Which is in the procurement of lead ingots, this 100 yuan to spread almost exclusively in the market when the more pessimistic than the bargaining space.

07-08 years, with prices soaring and plunging the process of lead smelting enterprises are also subject to impact. But because the original capital investment larger than the battery business. And therefore the impact of this is for the smelting enterprises can afford. Even if the profits did not get the early levels, but far from the battery terminal market are directly faced with a greater impact. Driven up the price later, worried about the pressure on the cost and end-consumption of an acceptable level. After the plunge in prices of assets shrinking Fukui and competitive pressure to lower prices of space follow. 
 
However, there is a non-ferrous metals such as lead ingots concentrated in an industry. According to a rough estimate, the world’s lead consumption in batteries lead products accounted for 75% of total consumption. And this data in the country should be higher. So highly concentrated in one industry, the material can not effectively participate in the market pricing mechanisms. The pricing mechanism does not respond the voice of the largest customer group, to a certain extent has become a lead traders to manipulate the market opportunities. Traders to the Shanghai Nonferrous Metals net provided during the inquiry with the aim of price information, and in the actual transaction but at a lower or higher price transactions. With Shanghai Nonferrous Metals net has been formed in the market, the information platform for authoritative information to guide a huge lead in price Change. To mislead the downstream battery manufacturers and thus make it part of the beneficiary of traders. Battery Factory in such a turmoil, is undoubtedly beset with crises. 
 
Crisis, as well as hidden opportunities. For the focus on the cost of materials purchases, it takes time to change the rules of the game can be achieved. Under the tide of the economic crisis, no doubt for the batteries is also a reconstruction of enterprises, the best time of procurement rules.sony vgp-bps2 battery,sony vgp-bps2a battery,sony vgp-bps3 battery.

Electronic information age, so that the mobile power needs are growing rapidly. As the lithium-ion battery with high voltage, an important advantage of high capacity and long cycle life, safety performance is good, so that the portable electronic devices, electric vehicles, space technology, defense industry, and many have broad application prospects, becoming the last few years of extensive public attention in research focus [1] [2] [3]. The mechanism of lithium-ion battery general analysis that the lithium-ion battery as a chemical power source, refer to two separate and de-embedding can be reversibly lithium intercalation compounds as positive and negative ion secondary battery constituted. When the battery is charging, the lithium-ion from the cathode in the de-embedded, embedded in the cathode, discharge the contrary.

 Lithium-ion battery is physics, materials science and chemistry of the crystallization of interdisciplinary research. Lithium-ion ibm laptop battery involved in the physical mechanism, is currently being embedded in solid-state physics to explain the physical, the embedding (intercalation) is movable object particles (molecules, atoms, ions) reversible embedded in the main body with the right size of the lattice The network space point. Electron transport lithium-ion battery cathode and anode materials are mixed ionic and electronic conductor embedded compound. Electronics can only be positive and negative material movement [4] [5] [6]. Embedded in a wide range of known compounds, object particles can be molecules, atoms or ions. In the embedded ions, requested by the main structure for charge compensation in order to maintain electrical neutrality. Charge compensation can be the main material can be achieved with changes in the structure, electrical conductivity before and after the embedded subject to change. Lithium-ion battery electrode materials can exist stably in the air is closely related with this feature. Intercalation compound only to meet the structural changes in reversible and are able to change the structure in order to compensate for the charge, as lithium-ion battery electrode materials.

Control the performance of lithium-ion IBM thinkpad t40 battery key material – Battery Chiang Kai-shek negative active material is the key to this technology, it is the consensus of the researchers at home and abroad.

A cathode material performance and the general preparation method

Positive characterization of ion transport in the nature of the important parameter is the chemical diffusion coefficient, usually, the positive active material in lithium-ion diffusion coefficients are relatively low. Cathode materials for lithium insertion into or from the working-class de-embedded material, accompanied by changes in crystal phase. Therefore, the lithium-ion batteries require a very thin film electrodes, usually tens of microns in order of magnitude. Cathode Material Lithium compounds are lithium-ion battery Lithium-ion temporary storage containers. In order to obtain a high single thinkpad t41 battery voltage, tend to choose high electrical potential of the lithium intercalation compounds. Cathode material should be met:

1) In the required charge-discharge potential within the electrolyte solution has the electrochemical compatibility;
2) moderate kinetics of electrode process;
3) a high degree of reversibility;
4) full of state of lithium in the air stability.

The study focused on layered LiMO2 hot and spinel-type structure of compounds and composite LiM2O4 two kinds of M (M is Co, Ni, Mn, V and other transition metal ions) is similar to the electrode materials. As a lithium-ion thinkpad t42 battery  cathode material, Li + ions in the process of de-embedding and embedding structural changes in the extent and reversibility determine the stability of the battery charge and discharge of repetition. Preparation of cathode material, its material properties and synthesis of process conditions will have an impact on the final structure. A variety of promising cathode material, there is the use of the cycle of decay in capacitance, which is a research priority. Have been commercialized cathode materials Li1-xCoO2 (01) solid-phase method generally used in lithium carbonate and other lithium salts and cobalt or nickel compounds, lapping compounds, after mixing to sintering reaction [10]. Advantage of this method is to process simple and easy to get raw materials belonging to the early development of lithium-ion battery development and production has been extensively studied approach, the more mature foreign technology; disadvantage is that the prepared cathode materials for electric capacity is limited, poor mixing of raw materials, preparation of materials performance, stability, good, quality, consistency between batches and the batch difference.

2) The complex method using organic complex preparation containing the first lithium-ion and cobalt or vanadium ion complex precursor, and then sintering. This method has the advantage of molecular-scale mixing, material uniformity and performance, good stability, cathode materials, high capacitance compared to solid-state method, and foreign has been testing lithium-ion thinkpad t43 battery used for the industrialization of methods, technologies not mature, yet few reported. 3) sol-gel method using the last century, 70 years since the development of

Preparation of ultrafine particles to the method of preparation of cathode material, the method has the advantages of the complex law, but also prepared the capacitance of the electrode materials have a greater increase being at home and abroad belong to the rapid development of methods. The disadvantage is high cost of technology is a development stage [11].

4) ion exchange process such as Armstrong prepared by using ion-exchange LiMnO2, won the reversible discharge capacity of up to 270mA • h / g high-value, this method for studying the new hot spot, which has the electrode system, thinkpad r50 battery,stable performance, high capacity electrical characteristics of . However, re-crystallization process involves evaporation of solution and time-consuming steps such as license fees, there is a considerable distance away from practical use.

Cathode materials research literature can be seen from abroad, its power capacity to an annual 30 ~ 50mA • h / g at the rate of growth and development tend to become smaller and smaller-scale micro-structure, while increasing power capacity of lithium intercalation compounds and raw materials to the nano-scale advance, on the structure of lithium intercalation compounds, theoretical research has made some progress, but its development in the theory is still evolving. Trouble in this area increases the capacity of lithium thinkpad r51 battery  power and recycling capacity fade problem, researchers have proposed to add other components to overcome the method [12] [13] [14] [15] [16] [17]. But for now, these methods have not thoroughly studied the theory of the mechanism, leading Japanese scholars Yoshio.Nishi that in the past decade, little substantive progress in this field [1], an urgent need for further study.

2 Anode material properties and the general preparation method
The conductivity of anode materials are generally higher, select potential as close as possible potentials can be embedded lithium-lithium compounds, such as various carbon materials and metal oxides. Reversibly de-embedded embedded anode material for lithium-ion requires:
1) In the lithium-ion IBM fru 08k8193 intercalation reaction in the free energy change is small;
2) lithium-ion solid-state structures in the anode have a high proliferation rate;
3) highly reversible intercalation reaction;
4) have a good electrical conductivity;
5) The thermodynamic stability, while not react with the electrolyte.

Research focused on carbon materials and has a special structure of other metal oxides. Graphite, soft carbon, medium-carbon microspheres have been in the country there are development and research, hard carbon, carbon nanotubes, buckyballs C60 and other carbon materials is being studied in [18] [19] [20] [21] [22] [23]. Japan’s Honda Researchand Development Co. , Ltd, K. Sato and other people use poly p-phenylene vinylene (Polyparaphenylene – PPP) of thermal decomposition products PPP-700 (to a certain heating rate heating PPP to 700 ℃, and the heat some time to be a product of the pyrolysis) as a negative,IBM 92p1060, the reversible capacity of up to 680mA • h / g. U.S. MIT, MJMatthews reports PPP-700 lithium storage capacity (Storagecapacity) up to 1170mA • h / g. If the lithium storage capacity of 1170mA • h / g, with an increase in the amount of lithium insertion, thereby improving lithium-ion battery performance, I believe that future research will focus on the smaller nano-scale micro-structure of lithium intercalation. Study of carbon anode is almost the same time, looking for potential and Li + / Li potential similar to other anode material has been taken seriously. Lithium-ion batteries used in the carbon materials surviving in two aspects:

1) Voltage lags, that is, lithium intercalation IBM 08k8214  reaction in between 0 ~ 0.25V (relative to Li + / Li) and the de-embedded response occurred at about in the 1V;
2) Cycle the capacity decreased gradually, generally after 12 to 20 cycles, the capacity dropped to 400 ~ 500mA • h / g.

Theory also relies on the further deepening of a variety of high-purity, structural regularity of raw materials and carbon materials Preparation and Characterization of a more effective method of building. Fuji has developed a new type of lithium-ion battery anode materials for tin-based composite oxide, in addition to the existing research has focused on a number of metal oxides, the mass ratio of energy than the carbon anode materials increased substantially. Such as SnO2, WO2, MoO2, VO2, TiO2, LixFe2O3, Li4Ti5O12, Li4Mn5O12, etc. [24], but not as sophisticated carbon electrode. Lithium in carbon IBM 08k8195 materials, reversible high-storage mechanism in the main formation mechanism of lithium Li2 molecule, multi-layered lithium mechanism, mechanism of crystal lattice, elastic ball – elastic net model, layer – side-side – the surface of lithium storage mechanism of nano-graphite reservoir Li-ion mechanism, carbon – lithium – lithium hydrogen storage mechanism and the mechanism of pore. Graphite, as a kind of carbon materials, has long been found that it formed with the lithium-graphite intercalation compound (Graphite Intercalation Compounds) LiC6, but these theories is still in development stage. To overcome the difficulties of anode materials is also a question of capacity loop attenuation, but in literature we can see that preparation of high purity and regularity of the micro-structure of carbon anode materials is the development of a direction.

The odometer of a low emission hybrid electric test vehicle recently reached 100,000 miles as the car circled a track in the UK using the power of an advanced CSIRO battery system. The UltraBattery combines a supercapacitor and a lead acid battery in a single unit, creating a hybrid car battery that lasts longer, costs less and is more powerful than current technologies used in hybrid electric vehicles (HEVs).

“The UltraBattery is a leap forward for low emission transport and uptake of HEVs,” said David Lamb, who leads low emissions transport research with the Energy Transformed National Research Flagship.

“Previous tests show the UltraBattery has a life cycle that is at least four times longer and produces 50 per cent more power than conventional battery systems. It’s also about 70 per cent cheaper than the dell gd761 battery currently used in HEVs,” he said.

By marrying a conventional fuel-powered engine with a battery to drive an electric motor, HEVs achieve the dual environmental benefit of reducing both greenhouse gas emissions and fossil fuel consumption.

The UltraBattery also has the ability to provide and absorb charge rapidly during vehicle acceleration and braking, making it particularly suitable for HEVs, which rely on the electric motor to meet peak power needs during acceleration and can recapture energy normally wasted through braking to recharge the dell kd476 battery.

Over the past 12 months, a team of drivers has put the UltraBattery to the test at the Millbrook Proving Ground in the United Kingdom, one of Europe’s leading locations for the development and demonstration of land vehicles.

“Passing the 100,000 miles mark is strong evidence of the UltraBattery’s capabilities,” Mr Lamb said.

 “CSIRO’s ongoing research will further improve the technology’s capabilities, dell td347 battery,making it lighter, more efficient and capable of setting new performance standards for HEVs.”

The UltraBattery test program for HEV applications is the result of an international collaboration. The battery system was developed by CSIRO in Australia, built by the Furukawa Battery Company of Japan and tested in the United Kingdom through the American-based Advanced Lead-Acid Battery Consortium.

UltraBattery technology also has applications for renewable energy storage from wind and solar. CSIRO is part of a technology start-up that will develop and commercialise dell u4873 battery,dell d5318 battery,dell g5266 battery-based storage solutions for these energy sources.