5 minutes to make a "Flying Leg" battery

On the afternoon of May 14, the electronic market of Minjiang Road after the rain was still bustling. The "IT Times" reporter came to Lujiang Road. Next to the dazzling cottage mobile phone booth, there are a handful of battery vendors. Here, there are so-called original batteries labeled "Nokia" and "HTC", as well as domestic batteries such as "Flying Legs", "Desai" and "Zhongxing". The specifications are different. The reporter pulled out a "NOKA" cottage Nokia mobile phone, hoping to buy a battery. A boss of Ye surnamed for a moment, said that this phone has no matching battery, if you really need it, you can make a piece on the spot. After some bargaining, Ye promised to make a battery for the reporter at a price of 35 yuan, and brought the reporter into the store. I saw a battery-making mold, vinyl gasket, insulation paper and other items on a square table. Subsequently, Yemou pulled out a bundle of batteries with rubber bands, and selected a piece according to the reporter's mobile phone specifications. This type of battery with a small iron block does not have any manufacturer's name and anti-counterfeiting mark. The marked capacity is as high as two or three thousand, and some are only seven or eight hundred. "The milliamps marked above are not allowed. The actual capacity is only about 80% of the label. However, the capacity is too large, the charging time will increase, the temperature will rise easily, and an explosion may occur. If the capacity is too small, the power consumption will be very high. Fast." One side of the leaf said in an understatement, while using a mold to install a protective circuit board for the battery core, and then corresponding to the positive and negative poles, then randomly pull out a "flying leg" wrapping paper and quickly stick it to the battery, a homemade battery The processing was successful and took less than 5 minutes.

Was the original "Flying Scud" in the cottage actually done this? Yemou whispered to the reporter: "Don't talk about Scud, Nokia, HTC's battery is also, what brand of batteries we can do here. This wrapper 0.1 yuan a piece, online everywhere. You can rest assured that this battery I After more than two years of use, there has never been an explosion, and other batteries are not guaranteed." The reporter then called the Scud company, and its sales staff made it clear that they had never sold unmarked batteries.

In another store, the reporter pretends to have a battery for his Nokia E63. The owner said that the original Nokia battery is complete, and a business battery named “Lai Shenglong” has been issued, claiming that it has passed the security verification. Just 40 yuan a piece. But when the reporter wanted to ask for an invoice, the shop owner seemed to be twisted and pinched, just filling out a receipt without any heads up. Peel the wrapping paper of the battery, which is also the same as the self-made battery, even the protective circuit board.

Second-hand battery "dressing" debut

The cottage mobile phone battery has been chaotic. The original mobile phones are generally equipped with original batteries, but for the domestic cottages, the variety, the variety, the versatility is also very poor. The battery operation of the domestically produced machines and the cottage machines was mainly based on finished batteries. The operation of domestic batteries required thousands of stocks, and the funds were very large. Moreover, it took time and effort to find a piece of the same battery in thousands of types. There are no way to guarantee a certain success rate for the inventory of four or five thousand models. So in the past two years, the universal self-made battery has been surging. Some small and medium-sized manufacturers produce a series of battery types. With a spot welder, glue gun, glue stick and other tools, plus a certain package, it takes only about 10 minutes to make a battery. Due to the blind spot of the cottage phone, the homemade battery is still quite a market.

In addition to the use of cottage batteries to produce lithium batteries, there are some hawkers, directly reclaimed used batteries to make a face-lift, dressed as a new lithium battery for sale.

Mr. Yu, a manufacturer of batteries in Shenzhen for many years, told the IT Times reporter that during continuous use, the capacity of the battery will be reduced, and the discarded batteries that are discarded will often have a small capacity of 1/2~1/3. This gives hawkers a chance. They use certain testing equipment to find out the available batteries and resell them to consumers by wrapping a film on the outside and attaching wrapping paper. Such a battery has a short life span, and it has no electricity for several times. At the same time, it is easy to explode due to short circuit of the battery. "This is a risky and profitable business. In Guangdong, there are more than 100 small companies that make batteries."

Cottage battery is very easy to cause an explosion

There is no rigorous production process, there is no material that meets the requirements, and even the core of the battery is also a misuse of the name, such a mobile phone battery safety hazard is extremely scary. Zhang Junliang, professor of the Energy Research Institute of the School of Mechanical and Power Engineering of Shanghai Jiao Tong University and deputy director of the Fuel Cell Research Institute, said that the battery manufacturing conditions are very demanding, and the electrolyte materials are explosive, which may cause some harmful effects such as hydrofluoric acid. Gas, no special factory can not meet the production requirements, if the battery is processed according to the shape of the mobile phone, destroying the seal of the original battery core, the electrolyte in the battery core will leak and cause harm. In addition, the positive and negative poles of the battery cell need to be covered with a layer of insulation film, with an auxiliary protection circuit to improve safety. If the heat-insulating film used is not good in heat resistance, or there is no protection circuit at all, the battery is overcharged and discharged or subjected to external high temperature, which is prone to short-circuit and breaks through the diaphragm. "Mobile phone batteries sold in the domestic market should undergo strict testing. The name, capacity, origin, model, implementation standards, precautions and plates should be marked on the surface of the battery. This self-made mobile phone battery obviously does not comply with the relevant process. ”

Cell phone battery specifications are difficult to unify

Despite the security risks, consumers who buy batteries are still in a constant stream. In the electronic market of Minjiang Road, many middle-aged and elderly people came to buy cottage batteries or homemade batteries, just for the sake of two words: cheap and convenient. Compared with the original battery that started with one or two hundred yuan, the 300-forty-yuan cottage battery is more attractive, but when the reporter talked to them about the harm of homemade batteries, they did not know.

In 2007, the former Institute of Telecommunications Research Institute of Telecommunications began to develop a unified standard for mobile phone batteries. Today, mobile phone battery standards are progressing slowly. A person from the External Development Office of Tell Labs introduced that there are many types of specifications for lithium batteries in China, and there are different standards. Among them are recommended national standards, as well as industry standards such as post and telecommunications, electronics, light industry, automobile, and commodity inspection.

"There is a lack of coordination between the national and industry standards and industry standards, and the standard objects have certain overlaps and repetitions. In recent years, with the rapid increase of mobile phone brands and models, various standards cannot keep up with the situation, and practical operation. Poor, giving the unscrupulous sellers a chance," the source said.

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