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Breakthrough in battery technology is difficult obstacle to the development of smart phones - [business news]2011-05-13
Breakthrough in battery technology is difficult obstacle to the development of smart phones
Competition in the smart phone market is increasingly fierce. As previously reported we have a growing number of smart phone operating system in the efforts to expand its market share, while the manufacturers are also working to improve their market share in smart phones. More and more smart phones available, they are more powerful, more and more high configuration, all display the smart phone market is growing rapidly.
However, the development of smart phones is not a smooth sailing. Despite the rapid development of technology, more and more new technology into the mobile space has been greatly improved user experience, but there are still some bottlenecks restricting the development of mobile phone technology. Battery technology is one of the most important aspects.
Compared to ordinary cell phones, smart phones tend to have higher than normal cell phone hardware configuration, but with more features smart phones have a greater frequency of use. This means that the smart phone's power consumption is correspondingly greater. With the large size of the touch screen into the mainstream, more and more Internet-based applications, smart phone also continues to increase the power consumption trends.
Inconsistent with this development, the mobile phone's battery technology has not made any major breakthrough. The current battery capacity and smart phones a few years ago, to enhance the range is limited, its very difficult life satisfaction of users. As far as I know, a lot of smart phone users are required to charge the battery every day.
Nokia Research Center Henry Tirri said in a recent interview, go through a few years, breakthroughs in related technologies, the smart phone's battery life is possible to achieve "good" level. Henry Tirri that the smart phone battery "good" level is a charge to use about a week, but now many high-end large-screen smartphone was less than eight hours of continuous use.
Short term cell phone battery technology, there is no breakthrough
Defects in battery technology for operators and manufacturers have an effect. Users may hesitate whether to buy a standby time is very short, smart phone, but it also limits the use of smart phone users to make more Internet applications.
Henry Tirri said that as the phone's basic function is to voice and information, so on the phone before the power management of the study was to optimize for both. But in the past two years, with the rapid development of mobile phone technology, there has been a faster processor and more power bigger and brighter screen, and with the "cloud" concept generation, a large number of applications require connected to the Internet server, which also takes a lot of power, however, did not keep up with the battery of this trend.
And taking into account the limited volume of safety factors, the current lithium batteries used in mobile phones is difficult to have much to enhance the capacity, mobile phone manufacturers and battery manufacturers are working on new battery technologies, including the use of solar energy, kinetic energy and so on. However, at present these technologies have no real breakthrough is not yet widely used. ABI Research analyst Michael Morgan said the smart phone battery to get involved in a lot of breakthroughs in technology, but these technologies are related, each technology must wait for other related technology.
Therefore, in the enjoyment of smart phones faster, more feature-rich at the same time, within a period of time, smart phone users still have to endure the pains of the battery can not be sustained. And if this situation would not improve as quickly as possible, perhaps even the development of the smart phone industry a huge impact.
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South Korean scientists develop safe lithium battery materials
Recent incident of mobile phones, notebook burst into flames accident, so now people are using the lithium equipment Duoliaoyifen care. Now, scientists from South Korea developed a new material for the manufacture of lithium batteries, known as fire can greatly reduce the possibility of an explosion to enhance the safety of lithium batteries.
Korea Atomic Energy Research Institute (KAERI) has released news that its researchers have developed a new material for the lithium battery separator that can withstand high temperatures and high impact strength. Prior research suggests that high temperature and poor tolerance collision lithium battery explosion is the main reason for frequent fire accidents.
Cell membrane is the battery positive and negative poles separated to prevent direct contact with a layer of inorganic or organic short film, usually polyethylene material. KAERI has developed a new type of membrane from polyethylene, nanostructured alumina and fluorinated resin mixture, and after the radiation treatment, can effectively compensate for the shortcomings of existing lithium battery.
Allegedly, the use of the mixture can divide the high temperature of 150 degrees Celsius and the considerable impact of external force to maintain its insulation, and ordinary polyethylene membrane at this time already on strike. KAERI has been applied for two patents on this technology, I hope soon will be able to apply lithium battery manufacturing.
Hitachi will invest 15 million U.S. dollars building a world-class battery factory in Dongguan
Delegation of the city early this month at Tai Fu Han investment period, a subsidiary of Hitachi Chemical Industry Co., Ltd. Shin-Kobe Electric Corporation, and Hitachi Chemical Chashan headquarters in Tokyo, the government signed a contract plan from 2010-2014 to the Hitachi Storage Battery (Dongguan) Limited replenishment of $ 15,000,000 company to build world-class globalization of the main battery factory.
Replenishment of the main factory building $ 15,000,000
"I first went to Dongguan in 1999, so far has been 10 years since. Dasan since we factory has been subject to Chashan Town, Dongguan City, and strong government support." Hitachi Chemical Industry Co., Ltd. will be a long Seto Ning times said.
He said that the Hitachi Group companies in Chashan Town have made great progress, very optimistic about their economic strength and growth of Dongguan. Hitachi plans from 2010 to 2014, the Hitachi Storage Battery (Dongguan) Co., Ltd. replenishment of $ 15,000,000, for the plant output and develop new products, and strive to build a world-class production and the globalization of the main battery factory. Chashan Committee Secretary Lu Shaoxiong and Shin-Kobe Electric Corporation President Ito Fan million capital increase for 1500 contract projects.
4 replenishment of expansion has
In 1999, the Hitachi Group, Hitachi Chemical Company settled its Dasan. May 2003, a total investment of $ 17,000,000 of the Hitachi Storage Battery settled Dasan, began production in November the same year. In recent years, Hitachi batteries and Chashan in Dongguan city government's concern and support of enterprise can flourish, has replenishment of expansion 4, the increase amounted to $ 7,430,000.
With the rapid development of China's automobile industry, car batteries surge in demand, led to the development of Hitachi. The face of world financial crisis, the Hitachi battery to increase domestic sales efforts, relying on the booming auto industry in Dongguan calmly. According to statistics, sales of the company in 2008 as 250.1 million yuan, the total tax payment of 724 million yuan this year in January to 10 months of sales of 192.02 million yuan, tax amounted to 12.21 million yuan.
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Advent of new materials, lithium-ion battery never exploded or achieve
Most of the daily life of consumer electronic products powered by a lithium-ion battery, such as mobile phones, MP3, camera and notebook computers. Before 2007, lithium ion battery gives a good impression of stability. But in the past few years, there's lithium-ion batteries have been explosive for the industry to re-examine its security issues, and trying to find a new supply materials.
Foreign media reported that Taiwan's Industrial Technology Research Institute recently found a new solution is still powered by lithium-ion battery, but it will not explode. It is reported by Alex Pang's team developed a technique called "Stoba" of the new materials, can be used in lithium ion battery between the positive and negative.
When the lithium-ion battery and other internal short-circuit condition, the internal temperature will rise to 500 degrees quickly, resulting in lithium-ion batteries overheating, or explosion, and this Stoba new material can be when the temperature reaches 130 degrees to form a protective film isolation layer, so that will avoid further enhance stability, to avoid an explosion, it added Stoba battery materials, also known as "never explosion of the battery."
However, the current problems is to join Stoba will increase the cost of lithium-ion battery, about 2% -3% raise, the promotion will encounter resistance. Alex Pang said the new lithium-ion batteries in laptop computers and mobile phones will be the first to use, is expected to be able to see the first quarter of 2010.
Photovoltaic panels put into the residential building
November 14, a row of more than 20 solar cell module plates in Nanjing, the CLP Yi and homes real estate debut. It is reported that the main city of Nanjing as the first national building energy efficiency center of the Ministry of Housing and Urban utilization of solar energy demonstration project, the real estate building a 15 million square meters of solar building integrated technologies are used. Which focus on acquisition of residential roof solar hot water, household electric auxiliary heat exchanger separate water tank; centralized power supply by solar photovoltaic power generation, residential garage, residential staircases, roads, gardens and lawns are the use of solar photovoltaic technology lighting.
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After the new lithium battery: lithium - the first practical air batteries - [business news]2011-05-05
After the new lithium battery: lithium - the first practical air batteries
Lithium - the first practical air batteries
In addition, the industry has also made other attempts, while still using organic solvents, but the difference is the new composition to improve the energy density of batteries. This is the lithium - air batteries. In this attempt, the Japan Industrial Technology Research Institute and the Japan Society for the Promotion developed a new structure of lithium - air batteries.
Lithium - the concept of air batteries have long raised. As used in the cathode oxygen in the air as an active substance, so in theory the capacity of positive density is infinite, can increase the capacity. Also, if using lithium metal anode, theoretical capacity than lithium-ion rechargeable battery to improve a number.
However, lithium - air battery has neither popularity. The reason is a fatal flaw, namely, the solid reaction products of lithium oxide (Li2O) accumulate in the cathode, electrolyte and the air so that the contact is blocked, leading to the discharge stopped.
Production Research Institute of Japan is divided into two by the electrolyte solution to this problem. In the negative (lithium) side of the organic electrolyte used in the cathode (air) side of the use of water-based electrolyte. Set between the two electrolyte lithium-ion only through the solid electrolyte membrane separating the two. This will prevent the electrolyte mixture, and to promote the battery reaction.
Article by lithium metal anode. Cathode with the electrolyte is used in combination with the organic electrolyte containing lithium salt. Although organic solvents can not be abandoned, but it limits the use. Use of electrolyte cathode alkaline water soluble gel, and after micronized oxides of carbon and the formation of low-cost cathode combination.
In the cell, the discharge is not the reaction of solid Li2O, but easily dissolved in the aqueous electrolyte in the LiOH (lithium hydroxide). Therefore, the accumulation of lithium oxide in the air after the electrode does not lead to work to stop. In addition, water and nitrogen through the solid electrolyte will not next door, so there is no lithium metal and the negative reaction of the danger. Moreover, in charge, if the configuration-specific positive charge, but also to prevent the charge conductivity and corrosion caused by aging of the air electrode.
To 0.1A / g discharge rate of discharge, the discharge capacity of about 9000mAh / g. Previous lithium - air battery discharge capacity of only 700 ~ 3000mAh / g, can be said to achieve a substantial increase in capacity.
Also, if you use solution to replace water-soluble gel can be in the air to 0.1A / g discharge rate of continuous discharge for 20 days, the discharge capacity of about 50,000 mAh / g, higher than the original one number. The capacity of the lithium battery lithium-ion battery than the original high-single digits, so the total value of the high ratio of double-digit lithium ion rechargeable battery. High performance solution, but the ease of use even better on the gel. The future need to consider which of these two to develop.
This technique could also be considered a simple rechargeable battery with the use of different methods. If we do not charge the battery, but by the water base of cathode electrolyte replacement, card boxes, etc. in order to recharge the lithium metal anode, cars do not need to charge waiting time can be immediately closed. By recycling of used water-based electrolyte to electrically regenerate lithium, lithium can be used repeatedly to achieve. Can be regarded as a new type of lithium fuel cells as fuel.
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Nissan plans to solve the battery cost in order to reduce the price of electric cars - [business news]2011-05-03
Nissan plans to solve the battery cost in order to reduce the price of electric cars
Nissan chief executive Carlos Ghosn has said Nissan Motor plans to address the high manufacturing cost of advanced batteries, the company's all-electric vehicles at competitive prices.
Sources said Ghosn expressed this view in Beijing, he also cut costs by about three years working to a timetable. Ghosn said the price may be decided that the initiative is an important factor in the success or failure.
"Our products need to enable consumers to accept government subsidies to continue for long time? We believe that such subsidies are necessary for some time, the company is expected that this time period is three years." Ghosn said,
Ghosn also said Nissan all-electric vehicles that demand may continue to grow, and the resulting cell production economies of scale will allow companies and other manufacturers of electric vehicles can significantly reduce manufacturing costs.
News also said it expects technological improvements also help reduce manufacturing lithium batteries, high-power engine and other manufacturing cost of technology required for electric vehicles.
It is reported that Nissan Motor plans to start the second half of next year, its electric vehicle products worldwide offensive. In addition, the company plans to test sales in China in 2011 Leaf, the Wuhan municipal government agencies and other rental customers launch of this car.
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