Digital battery

As the core of electric vehicles, power battery applications with the particularity and complexity. To say, have the last hundred years, not the power battery development is bad, but the oil industry and the automotive industry is too large outstanding technological progress. Power Battery experience in the manufacture of batteries, batteries, battery modules, batteries, four-level links, the whole power system, Laptop battery technology has repeatedly stressed the concept of necessity is: consistency, standardization steps. From a technical achievement levels, ranging from small battery-battery technology upgrade to power, not simply “addition” can be easily reached. Power Battery performance factors (power density, energy density, durability, safety, cost) rings linked, high-power and high energy prices on the development and manufacture of hard to take into account a long time a serious impact on the work of the high-power battery, High-Power exothermic phenomenon of the work of the security of the test battery, energy efficiency must be sacrificed in order to obtain a longer life, high energy density and safety risks. This is technically difficult to obtain a full range of meeting, but only to find a balance, but also with the vehicle fuel system that is the biggest challenge for technology comparison. Route choice in technology, nickel metal hydride batteries, native defects (self-discharge, specific energy is small), it was replaced by lithium batteries, only a matter of time. However, the lithium battery line, a series of disputes can the electrode materials, different systems of lithium manganese oxide have, lithium iron phosphate, nickel-and cobalt-manganese ternary and other technical line. Of the lithium iron phosphate battery technology A123Systems lost Chevrolet tender incidents, automobile manufacturers program the freedom of choice of batteries, for a variety of technical path to wait. We believe that automobile manufacturers’ lithium IBM ThinkPad R40 battery technology is not just over the line, more concerned about the patent dispute, suppliers, manufacturing capabilities and financial strength, etc., it is systemic issues. Main lithium-ion battery makers are still the most commonly used lithium manganese oxide system, Ni-Co-Mn and other technical way, as we believe that given the uncertainty in technological progress, lithium battery technology fronts will be difficult in the 2-3 years will have a clear statement does not preclude the international community, the first benefit of industrialization is the more mature xHEV lithium manganese, nickel, cobalt and other battery-Mn line. Battery is still in the global industrial R & D phase is uncertain, the domestic industry structure and outlook, it is certain that China is in the technical research and development of battery power, battery and vehicle research and development and improve the docking Power battery industry support intensity.

 

The direction of the battery lithium ion battery that can be in Japan and the United States of lithium-manganese-lithium-divided iron. Lithium manganese battery refers to the lithium manganese oxide cathode materials LiMn2O4 in propulsion. Lithium-iron Dell Latitude D510 battery refers to the lithium iron phosphate as cathode material LiFePO4 Power Battery. Us for a comparison:

 

Security

 

Lithium-ion battery charging and discharging process of lithium-ion embedding / de-embedding process. When the crystal structure in the process stability, not change is the battery of security to be high. Otherwise, is that is small, such as the layered structure of the cobalt oxide lithium battery charging voltage rises under the circumstances, the cathode material of lithium ion in the other continued to de-embedded to swim with the cathode, anode material at a time when the filled in the position to the location of the lithium-ion site was, lithium-ion only in the form of metal precipitation on the surface. Such problems arise. On the one hand, the surface of lithium metal deposition is very simple, formed a branch of the form, poly-lithium dendrites, the membrane-penetrating, leading to positive and negative direct short circuit, the other hand, lithium metal is very lively, is a direct response to the electrolyte and heat have, at the same time, the backup lithium is very low, although it is not the surface of the lithium metal dendrite membrane-penetrating, as long as the temperature is slightly higher, as the hp Pavilion DV1000 battery by heating by the discharge of lithium is -melt metal, so that positive and negative short-circuit, causing accidents. There is a high temperature and depth of the charge-discharge process, the cobalt and oxygen bond can be broken to release oxygen and produce an explosion. Lithium cobalt oxide battery temperature of only 150 degrees, the lowest of the three cathode materials. Therefore, the security of the largest lithium cobalt oxide is a short-board batteries.

 

Lithium manganese spinel crystal battery, lithium-ion embedding / de-embedding process is stable, secure high. The oxidation temperature of 250 degrees of lithium cobalt oxide batteries than a full 100 degrees higher. However, in the depths of the charging and discharging the material lattice Kawasaki (susceptible to changes, especially at the higher temperature), and manganese-oxygen bond can be broken to produce and release oxygen in an explosion. There is also a high temperature lithium-manganese oxide crystals slowly dissolved in the electrolyte problems. Lithium manganese battery and must therefore take a variety of security measures to improve security.

 

Lithium iron phosphate sony VGP-BPS2A battery is currently the safest battery. Its unique crystal structure of olivine in the phosphate-base for the entire material has a stabilizing effect, makes the material itself has thermal stability and good cycling performance. This is one of the key in the lithium iron phosphate lithium-ion differs from LiCoO2 cathode material of lithium cobalt oxide and lithium manganese LiMn2O4 with a one-dimensional direction of their mobility, the charge-discharge process can undo and be accompanied by extrusion, and move a central metallic iron oxidation and reduction. In addition, the phosphorus-oxygen bond and strong, so lithium batteries short-circuited, it is not because of the short circuit and produce an explosion. The oxidation temperature is higher than 400 degrees, can be placed on the fire. Therefore, increasing the cathode material lithium cobalt oxide and manganese-lithium battery for the safety had to take on a variety of means, while the cathode material lithium iron phosphate is a naturally have security.

 

Economy

 

How much do the cobalt to the high price of lithium cobalt oxide material. Manganese is rich in natural resources are cheap, while lighter lithium manganese preparation, manganese-lithium batteries and low cost. Phosphorus and iron-rich cheap, but difficult to lithium iron phosphate preparation for its low rate of sintering of the finished product, so that the material lithium iron phosphate battery costs. To reduce the cost of lithium iron phosphate a variety of methods, such as increased production, improved technology and so on.

 

High Capacity

 

Including the electrical power and voltage. Theory of the highest capacity in the lithium-cobalt, manganese and lithium the lowest. However, in order to assess the safety, the actual performance of lithium cobalt oxide of a compromise, only about half the theoretical capacity. Thing like this would, if you have to increase generating capacity to sacrifice safety. Security, high theoretical lithium manganese oxide with a low capacity means that there is not much scope for the development of electric power and up to 148mAh / g VGP-BPS10 with greater safety in comparison, lithium iron phosphate, it was made in the laboratory 160 mAh / g capacity of the actual performance. Of course, the operating voltage of lithium iron phosphate as low as 3.3. But it has a very flat voltage platform, which means it is more stable and efficient discharge properties.

 

Fast Charge

 

Speed of charge from the conductive material decision. There is no doubt the worst of lithium iron phosphate. This is because the lithium iron phosphate lithium-ion extrusion, reducing the volume of the grid, from which a total FeO6 octahedron corners, because they can not be separated by oxygen atoms to form a permanent FeO6 network structure, whereby the electronic conductivity. On the other side of the crystal in the oxygen atom near the main road of tightly packed six-party agreement, so that the lithium-ion offers only limited access, allowing lithium ions in the structure at room temperature in a very small migration rates. But that does not mean that lithium manganese oxide can be easily achieved fast loading. Because of its crystal structure of lithium iron phosphate is not stable, high current fast charge may mean that the bars come saki changes, the key of the manganese and oxygen can be broken, which means an explosion. By pair-doped lithium iron phosphate, for example, by adding carbon, cobalt and the like will be the conductivity is greatly increased. BYD experiments reported that his 10 minutes to the apple M8403 battery to 80% are filled.

Vanadium redox batteries (VRB, VanadiumRedoxFlowBattery) is the largest and most technologically advanced, closer to the industrialization of high fuel cell performance reversible, with a great power, high capacity, high efficiency, low cost, a long life and a series of unique green benefits of wind energy, photovoltaic energy, energy peaks, distributed power generation, electrical storage military vehicles of municipal services, base station communication , power supplies UPS has a very wide field of good prospects in Japan, Canada, the United States, Australia, Western Europe and other countries and regions have begun to replace the capacity of small, short life, pollution a large lead-acid batteries.

 

With the rapid development of the vanadium Laptop battery technology, the vanadium battery is required to make a human being without precedent is of great importance and large industrial energy revolution!

 

Advantages of the vanadium battery

 

Compared to other food chemicals, vanadium battery has obvious advantages, the main advantages are:

 

1. Big Power: increasing the number of single cells and the area of the electrode, you can increase the power of the vanadium battery, the commercial demonstration of American power in the vanadium IBM ThinkPad R40 battery is running has reached six megawatts.

 

2. High capacity: an increase in the volume of electrolyte, you can arbitrarily increase the power of the vanadium battery until gigawatt hours or more, increasing the concentration of electrolyte, you can multiply the power of vanadium batteries.

 

3. The efficiency is high: When the vanadium battery electrode high catalytic activity, and positive and negative electrode active material were stored in the storage tank positive and negative electrolyte, preventing the material of positive electrode and negative active self-consumption of a discharge, charge the Dell XPS M140 battery of vanadium and discharge energy conversion efficiency up to 75% or more, much more that 45% of lead acid batteries.

 

4. Long life: When the vanadium battery positive and negative active material to exist only in the positive and negative electrolyte, charge and discharge the battery when no other phase-change policy, can not damage the battery deep discharge, long battery life. Canada Now VRBPowerSystems longest commercial demonstration module vanadium battery has worked more than 9 years, the burdens of life-cycle pulse of more than 18,000 times higher than the fixed type lead-acid battery 1000 times.

 

5. Speed of response: the heap is full of electrolyte hp 346970-001 battery of vanadium could be launched at a moment in the process of filling and operation requires the execution of only 0.02 seconds to turn the state, response time 1 ms.

 

Expenses 6. Perhaps snapshot: the electrolyte can be achieved by replacing the battery Vanadium instantaneous load.

 

7. High security: vanadium battery, without the potential risk of explosion or fire, although the mixture of positive and negative electrolytes is also non-hazardous, but the temperature of the electrolyte was slightly increased.

 

8. The cost is low: In addition to the ion exchange membrane, components of the vanadium battery, the cost for most low-cost carbon materials, engineering plastics, materials, sources of wealth, easy recovery, not of metal valuable as electrode catalysts, and low.

 

9. Vanadium VGP-BPS2C battery location large degree of freedom can be fully automated transaction closed, no pollution, easy maintenance, operating costs low.

 

Vanadium battery market outlook

 

Wind

 

Wind generators should be equipped at present is roughly equivalent to 1% of its power lead-acid batteries are used in emergencies to protect the revenues of the fan with a fan, another machine is also required Typhoon for each power is roughly equivalent to 4% of its power back-up battery. As the grid has become a bottleneck in the development of wind power with the explosive growth of wind energy, wind energy and power struggles will become stronger over the network to reduce the impact of the substantial increase in the use of wind energy at the same time win a huge difference peak and valley power systems, wind farm will be required with a power equal to its power 10 ~ 50% of toshiba PA3399U-1BAS battery storage dynamics. For fans outside the electricity grid, you need a greater proportion of flow storage batteries.

 

As the fan there is lead-acid batteries currently used in small capacity, short life, poor stability, maintenance time and effort, causing pollution and other serious defects, manufacturers fan has been looking for a better alternative to lead product battery acid, I believe, has many outstanding advantages of the vanadium battery can replace the existing lead-acid batteries, thereby building a wind farm dynamic system of energy storage, has greatly improved the efficiency and effectiveness of wind farms to promote the industry of wind energy to develop better and faster.

 

PV

 

According to official statistics, in recent years, the growth rate of average annual global PV modules up to 30%, the photovoltaic industry has become the world’s fastest growing emerging industries. In particular, in 2008, the world’s total installed PV capacity of 3 GW.

 

As its name suggests, the photovoltaic power generation needs sunlight, once in the evening and on rainy days is not like electricity, and thus the need for apple A1012 battery energy storage electricity because of power lead-acid battery, capacity, life expectancy is very limited, I think a number of advantages of an outstanding series of Vanadium Batteries will serve as first choice for battery storage of photovoltaic energy.

 

A peak power

 

Grid shaving up was the primary means of pumped storage power plant. Nearly three decades, the developed world in the development of power plants pumped storage power faster and faster. Pumped-storage power plant in the world’s fastest growing installed capacity of the largest in Japan, followed by the United States, Italy, Germany, France, Spain, Japan and the United States were station pump-turbine installed capacity of over 20 million kilowatts.

 

Pumped Storage Power Station due to the need to build upper and lower reservoirs, subject to conditions more limited geographically, in lowland areas is not easy to build, and covers a large area, the high maintenance costs . Vanadium station storage TravelMate 290 battery, without geographical restrictions, location of free, compact, low maintenance cost. We can expect, with the battery technology develops vanadium, vanadium station battery energy storage will gradually replace the pumping station-turbine in the network plays an important role in peak shaving.

 

Transportation Services

 

As the world continues to accelerate the process of urbanization and the continuing growth of motorization, pollution, car exhaust, urban air pollution has become the primary source of pollution. Vigorously develop energy-saving, environmentally friendly alternative to traditional fuel cars electric car, has become the consensus of the people. With the rapid development of Dell RN873 battery technology of vanadium can be seen, has many outstanding advantages of vanadium in batteries for electric vehicles (especially buses), electric motorcycles, electric bicycles, electric boats, traffic lights, streetlights and other major areas of scenery to play an important complementary role.

 

Communication Base Station

 

Base stations of communication and communication needs of the battery as a back-up supply chamber, and usually not less than 10 hours. Operators in terms of communications, security, stability and reliability and longevity are most important in this area, the vanadium hp PB991A battery is a lead-acid batteries can not match the rewards.

 

UPS Power Supply

 

CCID Consulting research shows that in 2007, UPS market has continued growth trend, primarily because of rapid and sustained development of China’s economy caused by the decentralization of UPS needs of users, making the industry more more business-to-UPS produces a sustained needs. The next few years, the UPS product development towards greater availability, security and features integrated, intelligent, and humane.

 

Currently, China’s UPS market, strong demand for large power, batteries are safe, stable and reliable batteries of vanadium in this area, as opposed to lead-acid batteries in terms of power, safety and stability, or both have an absolute advantage in life.

 

Power Distribution

 

In today’s society of energy and electricity supply, quality, efficiency, environmental protection and the growing requirement for high security and reliability, large-scale power was due to their own failures can not meet this requirement. With the rise of the distribution of the central, large central power stations will gradually decrease. I think the vanadium battery is the first in a hospital, command centers and control, data processing and communications centers, commercial buildings, entertainment centers, vital government services, pharmaceutical and chemical industrial materials, Industries precision manufacturing play an important role in the distribution of power.

 

Military Reserve Power

 

Vanadium battery may also be military bases, command centers, military and other military departments play an important role in charge storage.