1.Brand mobile phones recalled massive defective batteries
Recently, Nokia announced 46 million mobile phone batteries will be recalled. It is learnt that the battery problem might be involved Nokia N70, N72, N91, 1600, and other 52 phone models, these batteries are made by Panasonic Battery Company from December 2005 to November 2006. On a global scale 46 million batteries are free replaced, this is the largest product recall incident of world by far. Therefore, the corporate image of high quality which Panasonic has long been striving to create has been queried.

2.Battery safety problems
Battery - energy source of mobile. All mobile electronic devices such as cellular phones, notebook computers can not be separated from the battery power. In recent years, with the advancement of technology, constantly updating and upgrading electronic equipment, people increase in demand for batteries, and people want it more compact, more refined, greater power. Maybe due to the battery increasingly have small size, light weight and good power, some manufacturers produced the overburdened batteries, and the problem began to emerge one after another.

3.Frequent phone batteries explosion
* The phone automatically explode in Vietnam on January 2004
* A sudden explosion happened when a Hong Kong resident in the use of a phone call, two eyes hurt by spot debris, his left hand also burnt on May 2004,;
* A sudden explosion happened when Mr. Chen of Beijing is in the use of the phone call , his right neck and right hand injured, black skin turn black on July 2004.
* Five mobile phone explosion continuously happened in Brazil in two months’ 34-year-old lady put her phone on the thigh while driving, Unluckily, the phone suddenly exploded, his arm and two legs burn, Otherwise, 4 explosion respectively happen in 3 cities of Rio de Janeiro and St. Paul state in 2006, California residents sleep at home, the fire happened by a sudden explosion of phone and ignited his clothing and other flammable materials on January 2007.
* June 19 2008, battery suddenly explode when a 22-year-old welders work in Jinta county Gansu Province, it broken his ribs and punctured his heart, which is the first death case caused by mobile phone battery explosion.

4.Battery problems of notebook
Compared with the mobile phone explosion, notebook battery problems are more widespread. Sony, Dell, Apple, Lenovo, Fujitsu and other brands of notebook batteries have occurred fire because of battery problems. In recent years, the notebook computer battery recalled incidents are more, Hewlett-Packard, Dell, Apple, Toshiba, Lenovo, IBM, Sony, Acer, Fujitsu and other companies have successively issued a notice to recall defective batteries.

5.Experts remind that battery manufacturers should step up safety testing.
The experts of PONY test that is a battery testing agency designated by Civil Aviation Administration of China, said that phone explosion was mainly due to poor-quality, battery charge core use long-term, high temperature, poor-quality battery charger and short circuit.
There are some serious security risks of submitted batteries in PONY test. For example, laboratory staff conducted a rechargeable battery protection test, sample exploded and fired. PONY experts said: “the battery manufacturers, logistic system and transport department should take seriously concern on the actuality.”

6.Crash caused by lithium battery
It was reported that since 2005, at least nine fire was related lithium battery, so the U.S. government is ready to limit passengers to carry lithium batteries on the plane. At present, many passengers want to carry lithium batteries on airplanes, which are electrical source of notebook computers, mobile and other electronic products. U.S. transportation officials said that the ministry has banned the transport plane carrying a large number of lithium batteries, and expected the department will do more restrictions of lithium batteries on the plane.
hy the lithium batteries danger easily happen in the transport process, PONY test experts explained that the lithium battery internal seal failure, or the metal connecting the battery bipolar, the battery will bring high heat due to short-circuit. Some of the fake or low-cost lithium batteries don’t have short-circuit protection devices, so risk is higher.

7.The public should attach importance to quality and safety problems of lithium battery
Batteries are facing an unprecedented security challenges. At present, people are inseparable from the mobile phones, digital cameras and notebook computer, and all these need small high-capacity lithium batteries. Market demands and application scope of Lithium battery is constantly expanded. In the next few years, lithium battery may also be used in hybrid vehicles. If the quality and safety problems of lithium battery are not paid sufficient attentions, it maybe leads to more serious consequences in the future.