Application of LiCoO2 in Lithium Cobalt Oxide Battery

LiCoO2 is the first commercialized lithium-ion battery cathode material used, because of its easy synthesis, high-voltage platform, specific energy is moderate, and good cycling performance, is still the mainstream of lithium-ion battery cathode material. However, the inherent characteristics of its structure, the actual capacity to theoretical capacity of only half full security risk existed. While its cycling performance, especially when the discharge voltage loop stability remains of concern to many researchers.

Ti-doped lithium cobalt oxide cathode materials on the performance improvement

(1) the electrochemical properties of LiCoO2 surface doped TiO2 relatively stable, the reduced activity of LiCoO2 surface oxygen, reducing the contact area with the electrolyte, inhibit the LiCoO2 in the Co dissolution in the electrolyte, increasing the battery stability;

(2) A small amount of lithium cobalt oxide at the surface there is likely to loose shape, reducing stress and cycle between particles caused by the process of the structure and size of small strain, increasing the stability of the battery.

(3) Titanium oxide doped LiCoO2 reduced charge and discharge process in the polarization, and the material has a higher discharge voltage and discharge more stable results.

(4) Inhibit the LiCoO2 doped titanium dioxide discharge cycle in the process of electrochemical impedance, is advantageous to reduce the battery’s capacity fading, improve high-temperature cycling performance, improve the electrochemical performance of the battery.

The company’s products have been widely used titanium dioxide lithium cobalt oxide materials. Adding nano titanium dioxide, the initial reversible capacity and cycling performance of high temperature significantly increased the discharge platform is better than not added. In addition, the amount of nano titanium dioxide, can increase the battery charge and discharge process at a number of electrochemical stability and thermal stability, so that the battery in the course of more stable and more durable. Long-term use by the user, the product of high stability, application results are obvious.

Common sense for Button batteries purchase

Technology advances and demand for the expansion of electronic tags are increasingly familiar to people. Volume is based on the different application areas get smaller, so the more applications also will choose the smaller battery. So now more and more electronic label use of button batteries, button batteries are often used in the lithium manganese 3V coin cell. Current domestic production of these coin battery manufacturers is numerous. I do not understand the electronic tag, in which to share with everyone the knowledge of the battery label.

Lithium manganese button batteries are manganese dioxide as cathode, lithium as the anode film, combined with the electrolyte to achieve the discharge effect.

Currently all manufacturers, because the difference between production technology, as well as the different materials used battery, the price is different, in general, domestic battery Japanese battery to be less than many, but now the gap between the smaller and made to do good The batteries and battery performance in Japan has been very close.

Why do the Japanese domestic battery and battery, and domestic battery performance will be among the big gap? First, the production process, quality control is a key reason, the second, the reasons for the battery material is quite large.

Technology problem is the core of each company secrets, and also of the company’s foothold in this, this, we could not be traced, but the raw materials, we can analyze, you can judge. Button battery core material, and which would also affect the battery performance of materials (These should exclude positive and negative raw material situation is not sufficient in many cases Changshang From a profit point of view, to the battery terminals of raw materials cut corners, causing low battery, To really hateful and it is not within the scope of our shows) have sealed the main apron, manganese powder, membrane, and the battery shell.

Sealing Ring, will directly affect the battery leakage, and the battery storage capacity, almost sealing rubber ring easily aging, but aging one, then the leakage, the leakage of the problem will then arises, think, made in China Aprons and Imported Aprons seal still a big gap between the. This point needs to pay attention when we choose not to play to listen to invent the battery can save the number of manufacturers for many years.

The purity of manganese battery performance is also great, impure manganese can cause uneven discharge, inadequate capacity of the phenomenon, which requires battery manufacturers to see whether there is such a special inspection departments.

Membrane is smooth discharge of the very important raw material, the density is too thin membrane, and discharge will be too fast. Too close, you may not power up.

Battery is a battery conductive shell is a good guarantee. At present the commonly used batteries and stainless steel shell and iron sub-reports, of which different materials on the battery are also very different.

Chint Solar is expected to account for 20% in the Chinese market

In 2010, a substantial expansion of production capacity appeared in Chint new energy industries. And the performance is obvious in the western region.

Currently Chint Qinghai and Gansu provinces, respectively, and signed a cooperation agreement signed last year with the 100MW (MW) photovoltaic power plant in Shizuishan, Chint Group’s total investment in the four western provinces and the 200MW 1800MW solar photovoltaic PV module production project, preliminary layout of Chint Group, Western photovoltaic industry.

Chint signing of Golmud City in Qinghai Province as the state’s key areas of economic development, the development of photovoltaic industry Advantages outstanding potential, is the country’s most resource-rich regions of light one, the annual sunshine time is the second high-value area. Chint Solar System, according to Director Zhou Chengjun introduction, Chint power generation project was built in Golmud City, the vast desert, the project is expected to be completed by 2015; a 20MW photovoltaic power plant investment and construction will start within the year, the fastest completion of power generation. The first phase will be construction of Golmud City, important national base of PV power is an important measure.

In addition, Chint Group and Gansu Province Development and Reform Commission signed a solar energy industry strategic cooperation framework agreement; Chint will spend 22 billion Yuan in the construction of solar photovoltaic power projects in Gansu and solar module production line. Under the agreement, Chint Group plans to build 1000MW of solar photovoltaic power projects, 200MW solar module production line. June 2009, Chint Group has invested 20 billion Yuan in Shizuishan city to build 100MW of solar PV power plant.

August, Chint and investment agreements were signed in Gansu, with 1,000 megawatts of solar photovoltaic power projects. Chint Solar Energy Technology Co., Ltd. CEO Yangli you said that in 2011 CHINT of thin film solar cell production will account for 20% of China’s high-end market.

The end of this year, Chint Solar to 480 megawatts of production capacity, and the beginning of this data is only 130 MW. That is, growth of 350 MW this year, a growth rate of 269 percent capacity.

In fact, in 2009, China PV power has been the rapid increases in share of total world production of solar cells, from 35% in 2008 to 55%. Which is expected by the end of 2010, Chint Solar crystalline silicon cells in Hangzhou will be extended capacity 400MW, thin film battery expansion to 75 MW? Wenzhou in the newly established base, thin film battery capacity planning will reach 240MW, to meet the fast-growing demand for domestic and international markets.

Solar Innovation and Integration Alliance Formed in Taiwan

By the Taiwan “Ministry of Economic Affairs Industrial Development Bureau,” contributed to the institute the new green energy promotion of “innovation and integration of the photovoltaic industry to promote the Union” was established on the 26th, it was understood that the PV industry to promote innovation and integration of the composition of alliance will integrate ” BIPV integration of the League “,” CIGS Industry Alliance “,” silicon solar cell industry alliance “, ” DSSC (dye sensitized solar cells) industrial integration of the League “and other industry alliance to construct the PV industry innovation and integration platform upgrade Taiwan’s industrial competitiveness.

It is understood that the alliance is mainly taking into consideration Taiwan’s photovoltaic industry, there are still room for growth in vertical integration, in particular, still lack of integration of solar energy systems, the establishment of further integration through the Association of four major alliances in order to enhance Taiwan’s industry in the international market competitiveness and look forward to using industry alliance platform to help provide the photovoltaic industry needs, mainly Yi Fa Zhan key processes, equipment, materials, components and Xin application products such as technology, the establishment of production Nenghe Zuo, Strategy alliances, global market layout and other cooperation platform.

To Establish Flexible Fuel Cell Test System

According to a survey by the International Energy Agency, Asia and Australia in 2004 for energy has reached 1.65 trillion liters of oil. The survey also shows that since 1990, oil demand is rising every year, causing nearly depleted natural resources, such as surging prices. Fuel cells as an alternative energy could be used to solve the energy shortage problem.

Space travel is the first use of fuel cell technology industry. Back in early 1960, General Electric manufactures proton exchange membrane (PEM) fuel cells, once for the NASA’s GemiNI PXI NI radio receiver technology developed and Apollo space capsules of the power system to provide energy. Since then, the fuel cell technology has made great strides, and their use has now spread from laptop computers and MP3 players to hybrid cars and even buildings, and other fields. With the growing number of fuel cell applications, design engineers not only need to understand the principles of this technology should also be familiar with the fuel cell stack (cell stack) testing the reliability and functionality. In this paper, fuel cell test system built two main criteria: scalability and isolation.

Fuel cell is a device that can use hydrogen of this planet’s most abundant element chemical energy into electricity. PEM fuel cell (the most commonly used as a fuel cell), in the porous anode (porous anode) and cathode layer between the electrolyte membrane. This layer electrolyte membrane allows protons from a block of electronic passed through but made of special materials. PEM cells work, so that hydrogen and oxygen through the anode and cathode, respectively, resulting in current. Exposure to hydrogen anode reaction is decomposed into protons, these protons through the PEM to the cathode. E can not penetrate the PEM; it would follow around a circuit to the cathode, this circuit in the form of electrons moving on the current.

PEM fuel cell is mainly used for automotive applications; each battery cell battery heap can generate 1.1V to 1.23V voltage. Then the fuel cell and the difference between normal cells where it? Ordinary batteries can only store a limited charge, thus using the time limited; fuel cell is different, as long as hydrogen and oxygen to maintain a constant supply of fuel cell has been able to provide energy. This feature can continue to produce energy to fuel cell cars and buildings suited to provide energy. Some very reliable energy source required the application requires the use of fuel cells thoroughly before testing.

Fuel cell is a scalable, low complexity, able to produce “a lot of power” system. Flexibility of fuel cells has also decided, and in order to ensure safe, long-term, calls for a flexible test. Therefore, to add me / O points, and modular platform for applications built fuel cell test is particularly important.

In addition should have a modular and scalable features, the test system should also be measured both the whole cell stack voltage is also capable of measuring the voltage of each battery cell. Each unit cell stack, hydrogen and oxygen flow rate through the anode and cathode are different, so each unit provides the voltage is different. Thus, monitoring the voltage, to understand each unit is working properly, and the control of gas flow rate to achieve the best energy generated, which are very important. In addition to gas flow rate, the temperature of the fuel cell must be controlled. To PEM fuel cells as an example, 60 ℃ to 80 ℃ is the best operating temperature.

The New Age of Next Generation of Electric Vehicles Battery in China

August 11, 2010, Yu-Sheng Yang, launched by his fellow “2010 high-energy power future electric vehicle symposium,” so the inscription: long way to go, to seize the opportunities – Education Institution platform, and plan our new high-energy battery, “and that China’s development of electric vehicles industry, on the one hand to seize the initiative, the Integrated Development of Industry, Learning model, the development of new high energy battery; the other hand, the industry must be given sufficient patience must not pursue overnight. The development of electric vehicles only 5 years, takes the development of the centuries of tradition, car standards to electric vehicles, too harsh.

Until recently, at the “second electric vehicles battery and motor technology International Conference”, Ouyang Ming Professor Kao said in his speech, the development of new energy vehicles in China in three stages are: hybrid, small pure electric, pure electric drive sedan senior, to reach the third stage, the energy density of individual cells to be more in 400Wh/kg, “the next generation battery” concept is emphasized once again!

Currently, the technical aspects of electric vehicles are the largest energy density. Today, both the nickel-metal hydride batteries and lithium ion batteries, the energy density are some limitations, not the mileage, compared with the internal combustion engine vehicles. We urgently need to develop high energy density of the power supply to ensure that our future generations can enjoy the green environment and good life.

In the Ministry of Science, Fudan University with the support of relevant departments will be held September 16, 2010 held in Shanghai for the first time the “future energy supply electric vehicle symposium,” multi-talents together and exchange the latest results, reunion consensus, to promote the development of new energy automotive industry.

In addition, organized by the Government of Jiading District, Shanghai, easy trade exhibition co-organized the 2010 Shanghai International Forum of new energy vehicles will be 19-22 October 2010 in Shanghai New Energy and Industrial and organize key components industry base, looking concerned.

A New Generation of Batteries

With China’s sustained economic development, automotive, communications, electricity, transport and the rapid development of computer and other industries, has entered a rapid growth period. The growing demand on the battery, but the lead-acid batteries in the manufacturing, production, use, pollution and waste sectors in the short life and poor performance than the defect was no longer meet the requirements of environmental protection and technological development. To this end, the majority of researchers through long-term exploration and development, and finally developed a new generation of battery — lead crystal battery. Overall performance of the battery has exceeded the level of similar products in the world, and has entered the practical stage, marked the battery industry, the start of another revolution, epoch-making significance.

Application of lead crystal battery is proprietary technology, using high conductivity silicate electrolyte lead-acid battery electrolyte is a traditional complex modification, and no mist formation process within the innovation process is finalized. First of these techniques and are at home and abroad, the product in the production, use and waste pollution problems do not exist, more in line with environmental requirements, as lead crystal battery replaced with silicate liquid sulfuric acid as electrolyte, in order to overcome the lead-acid batteries Life is short, not high current charging and discharging of a number of drawbacks, more in line with the essential conditions of battery, lead crystal battery power batteries are also bound to a huge boost.

Than lead-acid battery storage battery lead crystal has unparalleled advantages:

1, lead crystal battery life is long. General lead-acid battery charge and discharge in 350, while the lead crystal battery discharge in 60% of rated capacity under the premise of life cycle 700, the equivalent of twice the life of lead-acid batteries.

2, high rate discharge performance is good. Special technology to make lead crystal cell with a high rate discharge characteristics, general lead-acid batteries discharge only 3C, lead crystal battery discharge can have a max 10C.

3, the depth of discharge performance is good. Lead crystal battery depth of discharge to 0V, to restore all the rated charge capacity of lead-acid batteries in terms of this characteristic is relatively difficult to achieve in the realm.

4, low temperature performance is good. Lead crystal battery temperature to adapt a very wide range from -20-50 ℃ can adapt to, especially in the case of -20 ℃, the discharge can reach 87%. The vast number of low-temperature region is the preferred product rare.

5, green are good. Lead crystal cell used in new materials, new processes and new formulations, there is no mist of harmful substances such as volatile, on the land, rivers and other non-polluting, more environmentally friendly.

Generous Earnings of Solar Corporate

Yesterday came the leading solar cell plant in Japan Sharp; plans to build in Europe and the United States production of crystalline solar cell of the new plant, by local production overseas, triggering market makers receive orders for Taiwan-related associations. Companies such as Yu Jing, U.S. grain and so light, daily limit, a legal person entitled to the proposed layout warrant higher pay.

IBTS associate Liping Zhang said: Solar strong population momentum long, continuously record high, to replace the existing stock warrants in addition to participation in the underlying stock investment gains, the more back up if the underlying stock, the losses are small.

American Crystal solar wafers, epitaxial wafers and LED sapphire substrate production line in Q3 is expected to fully loaded; and the current production cost of polycrystalline silicon decreased, but the recent offer is on the rise, which means that corporate profits increased significantly than before .

The new solar energy light recently signed with Zhejiang Yuhui Yang reached a total of 434MW of polysilicon / silicon solar wafer supply contract, which raised 10 billion of funds and also for capacity expansion.

Zhang Liping that links most of the new daylight warrants were tested at current prices, investors can choose KGI and Polaris GF CG closer to the subject of price level.

1000 Solar Panel for Sale Released Again in Swiss Pavilion

Reporter learned yesterday from the Swiss Pavilion, the museum launched in 8000 the first solar panels have all been pre-sold. Swiss curator Er Heli said in September will be re-launched nearly a thousand pieces of solar panels, including the purchase of previously booked, but to give up some panels.

Swiss Pavilion, a total of more than 10,000 pieces is called “Little Sun” solar panels, excluding loss and retention part of the museum, available for booking “Little Sun” has more than 8000 pieces. August 13, formally accepted the Swiss Museum visitors book “Little Sun”, each priced at 260 Yuan.

“Little Sun” to accept reservations after the reservation of visitors’ line up evens a Swiss museum shops around twice. According to the Swiss Museum of staff Martin introduced more than just a week more than 8,000 pieces of “Little Sun” was booked, can then continue to come from visitors asking, “We have to hang out the brand advertised.” Martin said.

Reporter at the scene saw yesterday, the Swiss Museum gift shop visitors before the consultation is still continuing, “Little Sun.” I heard “Little Sun” sold out, Qingdao, Shandong visitors Otto bit disappointed, he was left in the register their contact information, “son loves the design, I want to buy a piece of him also a memorial.” Tao President said that if the Swiss Museum of further sales, hope the staff to inform him.

Reporter learned yesterday from the Swiss Pavilion, the desire to meet some of the visitors, the museum prepares to launch in September and then nearly a thousand pieces of solar panels. Staff briefed reporters yesterday, has been booked solar panels in 8000, “more than 2,000 book from the store, and has received the cash paid futures, the rest are tourists registration book, and there are some outstanding tourist of money.”Swiss Pavilion, news assistant Dan said that they would contact the subscriber, if not finally make payments before the end of August to confirm, will be considered abandoned, the museum will be in September was not sure to buy solar panels to conduct a pre-sale.

Swiss curator Er Heli 23, also said in an interview, including the book after giving up the “Little Sun”, next month they will re-launch of nearly a thousand pieces of solar panels. Hope that the book “Little Sun” in the Museum website visitors attention recently that they will release relevant information through the website.

Swiss Museum of intelligent solar panels on the walls of the Swiss Pavilion is one of the major highlights of environmental protection technology. “These solar panels can absorb too much sunlight during the day and the evening also can absorb the camera flash lighting, torch light, and stored energy, so as to self-luminous.” Swiss Pavilion, the staff also said, “Little Sun” road map inside is a map of Switzerland.

It is understood that the museum will be souvenirs for sale as an innovative solar cell is the hope that people can recycle them at the same time the concept of sustainable development into the thousands of families. Swiss Pavilion that book, “Little Sun” before the tourists to pay, leaving the address, such as three months after the end of World Expo, the “Little Sun” will be mailed to buyers.

Yichun to Develop New Lithium Energy Industry

The afternoon of August 23, Castle Peak Energy Development Co., Ltd. Yichun Economic Development Zone project cooperation with the signing ceremony. Municipal Committee, mayor Gong Jianhua, deputy director of Ren Chenqiu Paul Municipal People’s Congress, attended the signing ceremony, vice mayor Wang, Huang Jianping, deputy mayor presided over the ceremony.

Castle Peak Energy Development Co., Ltd. battery and electric cars are a total investment of 7.0 billion, built in three phases of the construction of 120 lithium battery production line, the formation of 60 000 units (sets) electric vehicle production capacity. The first phase will be from September 2010 to August 2011, with an investment 1.75 billion Yuan, the new 30 power battery production line, and the formation of 10 000 units (sets) electric vehicle production capacity.

Two plans from September 2011 to August 2012, with an investment 1.75 billion Yuan, the new 30 power battery production line, the formation of 20 000 units (sets) electric vehicle production capacity. Three planned from September 2012 to August 2013, with an investment 3.5 billion, adding 60 battery production lines, the formation of 30 000 units (sets) electric vehicle production capacity. Projects are all put into compliance; it will realize annual output value of 120 billion Yuan.

Castle Peak Energy Development Co., Ltd. settled, the city will have new lithium energy industry play a significant role in promoting and leading for the lithium industry base to accelerate the country, efforts to build “Asia lithium are” of great significance.