How to guarantee the high safety and high quality of lithium batteries?

"It was our job to prevent unsafe products from entering the market, but now it is our job to help safe products enter the market," said former UL Mr. CEO Noble. "This is not only a change of words, but also a change of concept.

High safety and high quality products are needed in the global market

For the rapidly developing lithium industry, the safety of lithium batteries may directly affect the market fate of many applications. From the data point of view, the impact is indeed serious. In fact, since 2006, there have been many examples of a fire worth between 500 and 600 million U.S. dollars. Samsung's Galaxy Note 7 battery explosion in 2016, for example, cost it nearly $700 million. But the consequences of the brand trust crisis are more serious than the knock-on effects of declining sales, falling profits and evaporating market value. For lithium-electric enterprises, product safety is life, safety problems need alarm bell.

Today, the domestic power lithium battery industry has begun to change and is realizing the double improvement of quality and quantity. According to data, in the past five years, the power cell monomer has doubled its energy, has reached more than 200 Wh/Kg, and the unit cost of the system has dropped to 1.4-1 .5 yuan/Wh.

In addition, in 2017, China's planned power battery production capacity has exceeded 170 GWh. It is expected that by 2018, China's output value of lithium battery core will reach 144.8 billion yuan, and the power battery industry has become a new growth point for China's national economy. At the same time, the rapid rise of the global new energy automotive industry, as well as the continuous exploration and growth of energy storage, drones, balance vehicles and other sub-fields, have also provided new research and development directions and profit momentum for the development of the lithium industry in China.

However, whether it is the application of power battery products in domestic new energy vehicles, energy storage, and ladder utilization, or the domestic lithium battery products "go out", "safety and standardization" has always been the topic of the industry. Therefore, how to build a unified standard system to improve product safety; How to adapt to the corresponding standards in overseas markets and expand the product sales market, these issues require domestic lithium battery companies to think ahead and layout.

Complicated application security issues

When it comes to safety, we have to mention the probability of an accident. In fact, the probability of lithium battery accidents we usually talk about means that under relatively mild conditions, if it is on electric vehicles, including vibrations, collisions, etc., this probability will greatly increase. The safety of lithium battery applications is a relatively complex problem..

Not long ago, AAA said that Tesla Models and Model-X had higher claim rates and claim costs than cars of the same class. As a result, the company is considering raising premium rates for both models. Although this is only for a Tesla car company, its impact is global.

The United States is known as the "country on the wheel". The automotive industry is mature and developed. China learns from the United States in many aspects of the industry, such as the new energy car points system. If Tesla is really required to "pay more for insurance", it will inevitably affect the cost of insurance for Chinese electric vehicles.

There are many safety problems in the application of lithium batteries such as insurance costs and accident liability. However, the reality is that lithium batteries that have experienced safety accidents have passed safety certification. Therefore, we found that there is not much correlation between strict safety testing methods and the occurrence of safety accidents. This is a very headache.

In addition, domestic lithium battery products "go out" to "go up", enterprises not only want to sell products, but also sell word of mouth, selling high-end brands, how to achieve? These are issues that need to be addressed urgently.

Based on the strong demand of industry companies and the consideration of the healthy development of the industry, UL and the power battery Application Branch of the China Chemical and Physical Power Industry Association will jointly sign a memorandum of understanding on cooperation in the UL Suzhou Laboratory to strengthen cooperation. During the period, there were seminars such as "UL Battery Global Access Service Introduction" and "Battery Safety Risk and Case Sharing". UL chief engineers and senior R&D experts brought standards-related market information and industry developments.

Through in-depth communication with battery companies and vehicle companies, the conference will conduct exchanges and communication on the feasibility of domestic lithium batteries entering the international market, UL power battery-related standards, problems in the field of safety and environmental protection of power cells and energy storage batteries, and technical bottlenecks. To explore the standardization direction of lithium batteries.

UL authentication:

Founded in 1894, UL is one of the most authoritative organizations in the world engaged in product safety testing and certification. With the mission of "creating a safer world," UL specializes in evaluating the safety performance of products, materials, and systems. In 2003, UL officially entered China. UL Suzhou Laboratory is UL's first laboratory in mainland China and UL's main test center in China. UL certification is crucial for Chinese products to enter the US and even North American markets.

It is understood that testing in the laboratory is only a step of UL certification. To obtain the UL certification mark, the company also provides a series of certification procedures in addition to the sample delivery test of the product. At the same time, It is also necessary to accept the inspection of engineers dispatched by UL to the production site four times a year to confirm the consistency of the products produced by the factory and the inspection products.

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