New International Standards for Lithium Battery, there is no market without standards.

Is the lithium battery around you safe? You must think that this is a regular product of a regular manufacturer, and that quality must be guaranteed. However, is not always the case. The "Safety Requirements for Lithium-ion Cells and Batteries for Portable Electronics Products"(GB31241-2014) was released. At this point, the mixed lithium battery industry will eventually usher in the moment of reshuffle.

Lithium battery in the status of daily life, should be said to have and chopsticks almost. Eating is inseparable from the chopsticks, similarly, when you hold the phone giggle, or wear a headset intoxicated, is the lithium battery behind the silent pay. But the problem is, lithium batteries and chopsticks have been no national mandatory standards. Of course, the purchase of chopsticks is very simple, as long as the general clean and beautiful mouth on the line. Lithium battery is not the same, there is no mandatory standard, it is easy to become a bomb around. Light equipment damage, heavy personal injury. In December 2014, the "safety requirements for lithium ion batteries and battery packs for portable electronic products" (gb31241-2014) was issued. So far, mixed lithium battery industry, will eventually usher in the moment of reshuffle.

Invisible bombs at your side

Is your lithium battery safe? You affirm to feel, za this is the regular product of regular manufacturer, that quality is to have assure necessarily. The reality is not so certain. On March 15, 2013, ZheJiang provincial administration of industry and commerce reported the quality monitoring results of mobile phones in the circulation field. Samsung, MOTOROLA, HTC, SONY Ericsson, Huawei, zte and other 17 well-known brands fell down one after another and were listed as "unqualified products". Relevant personage expresses, in the 36 batches of mobile phone goods that random chooses this time, qualified for 9 batches, unqualified for 27 batches, qualified rate is only 25%, overall quality condition is not optimistic.

Test results showed that of the 27 batches of substandard mobile phones, 20 did not meet the "battery thermal shock" standard. The battery thermal shock project is an important standard for testing the safety performance of mobile phone lithium batteries in the national mandatory safety index general specification for ion batteries for cellular phones (GB/ t18287-2000). The project by placing the battery in high temperature test chamber rose to 150 ℃ + 2 ℃ and thermal insulation for 30 minutes, if the battery will not burst into flames qualified or leakage, on the other hand, for the unqualified products.

Lithium battery new national standard no standard market "mess"

Of course, for daily life, this test conditions seem harsh. At ordinary times, the high temperature of 150 ℃ cells carry even if it is to live, electronic equipment may also be ruined. But lithium batteries is not only an accident in high temperature, keyword search for "lithium battery explosion" news, can reach more than ten thousand minutes, eliminate abnormal means users (such as decomposition, short circuit, fire) caused by the explosion, mostly due to the lithium battery itself to be of poor quality, and even the source was an accident.

In November 2014, a fire broke out in Dongguan jinmingyang battery technology co., ltd. in Yuquan industrial park, Fenggang town, Dongguan city, resulting in 5 deaths and 6 hospitalized injuries. The reason for the fire is that the battery needs to be charged for the first time after it is produced. However, in the first flush stage, the spontaneous combustion of the battery often happens, and everyone is used to it. Therefore, the fire extinguisher can be easily sprayed. But this time, hundreds of rechargeable batteries were stacked in a pile, and after they spontaneously ignited, the fire quickly got out of control. However, even a production link there are many hidden dangers of battery products, can people feel at ease to use it?

Even if the upstream qualified large factory production of batteries, can not guarantee 100% safety, or lithium battery how can become one of the air transport restrictions. Even apple, the fashion icon of the digital world, is not immune. In recent years, news of the explosion of lithium batteries in the iPhone has been widely reported.

Another important position of lithium battery mobile power supply is also a disaster area. Mobile power brands are numerous, li ghost and li kui coexist, not every manufacturer has the ability to produce the cell, the best way is to find the upstream cell manufacturers procurement. But any product can not guarantee 100% qualified, upstream manufacturers unqualified cell where? Many have been bought by "ghosts" to assemble mobile power. Such copycat goods, from the root has the potential bomb.

Lithium battery industry can be said to be a mess, accident frequency, many people's attention to lithium battery has shifted from capacity to safety. Industry insiders are calling: it's time to regulate the industry.

Lithium battery mandatory standards

In fact, there are a number of international and domestic standards for lithium battery safety requirements, such as the United Nations "dangerous goods transport test and standard manual" on lithium battery transport requirements (UN38.3), the domestic "mobile phone lithium ion battery and battery set general specifications" (GB/ t18287-2013). But the regulations are either not mandatory (as in UN38.3, which applies only to transportation) or do not have comprehensive safety requirements for lithium batteries.

On December 5, 2014, the national standardization administration of China issued notice no. 27, approving the issuance of 234 national standards, including the coveted "safety requirements for lithium ion batteries and battery packs for portable electronic products" (gb31241-2014).

Under the guidance of the ministry of industry and information technology, the standard was drafted by the China institute of electronic technology standardization in cooperation with Shenzhen bike battery co., LTD., scud (Fujian) electronics co., LTD., and other related enterprises, and will be formally implemented on August 1, 2015. As can be seen from the standard code GB, this standard is a national mandatory standard. Subsequently, China quality certification center revised the "safety certification specifications for lithium ion batteries and battery packs for portable electronic products" from cqc336-2013 to gb31241-2014 according to the standards. At the same time, it began to use the new implementation rules and certification standards to accept applications for safety certification for lithium ion batteries and battery packs for portable electronic products.

According to the new standard GB31241, all lithium ion batteries and battery packs that meet the requirements of "no more than 18kg of predetermined portable electronic products that can be carried by users frequently" shall comply with the mandatory requirements given in the standard. Portable electronic products applicable to the standards include portable office products such as laptops, etc. Mobile communication products such as mobile phone, cordless phone, Bluetooth headset, walkies-talkie, etc. Portable audio and video products such as portable TV, portable DVD player, MP3/MP4 player, camera, camera, recording pen, etc. Other portable products such as electronic navigation devices, digital photo frames, game consoles, e-books, etc. Of course, the standard emphasizes that 'all portable electronic products listed above are not included, so the products not listed are not necessarily outside the scope of this standard: that is, lithium batteries used in future wearable electronic products may also need to meet the requirements of this standard. The standard also states that "there may be additional requirements for lithium ion batteries or battery packs for portable electronic products used in specific applications such as vehicles, ships and aircraft, as well as for special applications such as medical, mining and undersea operations." This means that the safety of lithium electronic products used in these fields will be further improved.

Read the new regulations for lithium batteries

Issued new portable electronic products with lithium ion batteries and battery packs and safety certification rules a country compulsive standard GB31241, a combination of several battery standards at home and abroad (such as UL, UN, IEC, etc.) in the mature security test project, in addition to thermal shock, external short circuit, the battery falls, charging test project for the modification, such as adding the protection circuit and identifies the durability requirements, especially for the battery protection circuit is also put forward the corresponding security requirements and the specific test method.

The new standard tests lithium-ion batteries to a no-dead zone, but it is also harsh. We found that the battery test project contains not only standard of general safety requirements (safety working parameters, identify requirements, the warning message, durability), specifically, proposed to the battery environment test, battery safety test, battery protection circuit safety tests, system protection circuit safety requirements and so on more than 30 test. It should be said that this is the most comprehensive safety standard for portable lithium ion batteries at home and abroad. This also makes this standard early promulgation causes the industry's great attention. Whether the new standard will lead to a higher difficulty in the research and development and production of lithium electronics, 7MC reporter learned from the relevant testing institutions that the technical requirements of the new standard should not have much impact on the upstream cell manufacturers, because the test index is not different from the current UL and IEC standards, and the product index can basically meet. However, it is still necessary to carefully check the requirements in the standard. For example, section 5.3 "labels and warning instructions" has a direct impact on the product. Your battery may be qualified in all aspects of quality, but it may be punished after the implementation of the new standard because it is not labeled as required. Text signage is really important, and it can also save some trouble for manufacturers. Foreign have "this electric iron should not be regarded as the weak-minded explanation of the heater and so on is not weak-minded actually, do not believe reference McDonald's because of coffee scald the case that American old lady is sued).

In addition, the relevant testing agencies said that lithium batteries may be included in the scope of mandatory certification in the future, similar to the power supply has a separate 3C certification. At present, the certification authority, the ministry of industry and information technology, and the general administration of quality supervision, inspection and quarantine pay more attention to the compulsory certification of batteries, and are studying the implementation transition period of the compulsory certification. But the mandatory certification will not be available until August 1.

This is good news for the upstream formal manufacturers, they have the strength to produce in line with the requirements of the new battery products. And lee ghost will eventually show up, thus changing the current bad money expulsion of good money dilemma. Of course, the early stage may be a little painful because unqualified products did not sell, downstream copycat manufacturers were blocked out of the industry by the new standards, so they have to destroy, or may face punishment. But this is just "growing pains", in the long run, the industry will get healthy development.

Therefore, from the point of view of the new national standard of lithium battery, for enterprises: it does not have much impact on the regular large lithium battery production enterprises, because these large enterprises themselves use the strict production process; And for some small work, the release of the new national standard lithium battery will play a strict limit on its role. For our consumers, the release of lithium battery new national standard, will greatly enhance the safety of lithium battery products. For example, it can effectively protect the personal and property safety of consumers within a certain range by improving the encapsulation rigor of lithium battery.

Before the new standards were introduced, there was a misconception that they would also regulate the proliferation of fake mobile power supplies and fragmented lithium-ion batteries for cars. But the ministry of industry and information technology lithium ion battery safety standards task force experts have made it clear that "GB31241 is the safety standard of lithium ion battery, not the standard of mobile power supply, can not be regarded as the standard of mobile power supply. This is because the mobile power supply is a product with independent functions, which can be sold and used independently. It is a complete machine. And the battery is just a part or component of the whole equipment. GB31241 is a component standard, not a complete machine standard.

According to the relevant interpretation, the safety assessment of mobile power supply should use the standard gb4943.1-2011 or GB8898. Among them, gb4943.1-2011 is "information technology equipment safety part 1: general requirements", gb8898-201 is "audio, video and similar electronic equipment safety requirements". The difference between the two requirements is not significant, the specific use of which standard to see what kind of mobile power supply equipment. Both gb4943.1-2011 and GB8898 require the safety critical parts of the whole equipment to meet the corresponding component safety standards. Lithium ion battery is a key safety component of mobile power supply (belonging to the whole equipment), so after the release and implementation of GB31241, mobile power supply must meet the requirements of GB31241 in addition to lithium ion battery, the rest of the safety requirements need to be evaluated by GB4943. 'I or GB8898. Because the mobile power supply as a whole equipment, security is not only by a component standard GB31241 can be covered.

It is disclosed that in the national standard for mobile power supply "general specification for mobile power supply for information technology portable digital equipment", the safety of mobile power supply will be comprehensively considered (GB4943.11/GB8898) and the safety of lithium ion battery (GB31241).

The same goes for car batteries. Previously, there are reports that the national standard for single battery has been formulated and submitted to the national standards committee. The news was quickly denied by industry insiders. At present, only the high power application and high energy application part of the national standard of lithium ion power battery for electric vehicles has been completed, and is in the stage of publicity and comment solicitation.

Misunderstanding, reflected industry to move power source and car power battery urgent demand of national standard actually from the side.

Write in the last

An industry, an industry to develop, there is no standard must be chaos. The previous turmoil in the lithium battery industry was caused by unruly and unruly markets. The introduction of safety requirements for lithium ion batteries and battery packs for portable electronic products (gb31241-2014) will greatly improve the safety threshold of lithium ion battery production and standardize the market order, and some counterfeit products and unqualified brands will be shuttered out. Of course, not to say that a new standard is all right, an industry to have a way out, in addition to industry regulations and standards, enterprises should also do self-discipline.

Of course, as users, we also need to care about the test cost of the new national standard, hope not too high, after all, the cost of this test will eventually fall on our consumers. As can be seen from the notice issued by the National Committee for the Standardization of Information Technology concerning the convening of the National Standard Initiation Meeting on the General Specification of Mobile Power for Portable Digital Equipment for Information Technology, the meeting was held at the beginning of this year. I believe that the national standard of mobile power is also about to be released.

The page contains the contents of the machine translation.