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The global mobile phone industry, the international financial crisis down into negative growth, economic recession, the weakness of private consumption evolved, followed by sales of mobile phones a significant decrease, leading to a drastic shrinking profits of the global handset. International Data Corporation predicted that the financial crisis, the global market for mobile phones in 2009 appeared the first contraction since 2001. The global mobile phone experienced commercial refrigeration, many past achievements to be proud of the international brands of mobile phones dropped from the battlefield. If the international mobile phone brand has been destroyed on the ground without glory days, when the domestic mobile phone rings in new ways. If consumers live stock Wujin, if the prosecution has the concept of the brand after the station, the purchase price allocated convenient as the main factor in cell phones and the quality is good and cheap Chinese-made mobile phones . The financial crisis in terms of international mobile phone brand was a disaster, the Chinese mobile phone industry is expanding opportunities. In the recently concluded 2009 International Exhibition Tianjin Mobile phone industry, Tianyu Lu Wei Bing GSM general manager, said the crisis era of the structure of the global market of mobile phones is changing slowly, emerging markets are increasing the share of the Chinese Fully mobile phone brands in the world. Tianyu currently ranks among the three major mobile phone brands in China in second position after Nokia, Samsung. After the operation in 2008 to go to the market in Southeast Asia after 2009, Tianyu has successfully entered the Middle East, South America and other markets. Description of ice, according to Lu Wei exceeded Tianyu months now foreign sales of 60 million and foreign sales are still growing rapidly. Brand China’s mobile phone of confidence on the world stage has also come from 3G licenses in China in the spring of 2009, the official release, especially the Chinese standard TD-SCDMA was developed in strong support of the government. The exhibition in Tianjin, in addition to Motorola, Samsung demonstrated the 3G mobile phone Tianyu 3G products introduced several years. Wei Lu Bing said: “English will propose several days TD to promote products at reasonable prices for 3G products to more consumers, suppliers will also reduce the cost of a single grant for the prosperity of the China’s TD-industry to make our contribution in the file. next six months, we can begin 80-10 TD products section. “Birth Blowout mobile Internet applications, battery-operated hard to double value-added mobile services, mobile devices, to 3G and mobile value-added support of electricity as one of the largest 3G handsets. from 2G to 3G era, mobile phones have more than just a simple function call, the phone, photography, video, navigation, data transmission, video player, send and receive e-mail links, surf-in-one on the web. Bluetooth, WiFi, GPS, mobile TV and other functions, a significant increase in the RF, baseband and then pulled the work of energy, video telephony, mobile TV , Java games and other multimedia applications processor is increased computational load, the monitoring of Super – the screen resolution, making the display and energy backlit by the load. Not to mention 3G phone on 2G/2.5G energy ~ 35 years has increased by 40%, single-function is sufficient to make all kinds of mobile phone battery fancy was tense. Standby and talk times of consumption calls for measuring the performance of its basic criteria, when the waiting time can not fulfill, consumption habits, talk to the user experience of high quality, it is difficult to win customers from 2G the migration of 3G networks. Then the battery problem has become the biggest problem of how to develop 3G. Above the demands of mobile phone features, the battery capacity needed to make a breakthrough for power Mobile is easy to reach and to ensure that sufficient time waiting. is held on the other hand, due to the integrated telephone functions require the battery voltage at relatively high voltage. Recently, the use of the battery accidents in the press: a Dell laptop in the room on fire, explosion, explosion killing Gansu phone is shocking, so against the use of mobile phones more frequently in social situations, safety The lithium-ion battery is very important. In addition, consumers also want more battery life, the number needed to load and unload more. Custom cell phone era, the custom 3G phone to the cell surface in the mobile era of the lithium battery, a number of special requirements. Apple has set a precedent for the internal battery cell phone, iPhone, iPod-style legacy of solid lithium-polymer battery in the phone. Since the battery can to be replaced, there is no way to save the battery power, the cost of replacing the battery up to 75 dollars, so the battery capacity and life demands more stringent requirements put forward . According to Cao Jianhua introduction, B &; best for K, high capacity, long-life lithium battery, you can also for the high and low temperature fuel cell research and development to ensure that the battery in the tropics, particularly high or low ambient temperatures can function correctly. In addition, communications mines, military and communications applications also require high-security cell.