Xing Heng took the lead in compiling China's first White Paper on Lithium Battery Safety for Electric vehicles after frequent Lithium Battery explosions.

In recent days, the frequently reported battery safety accidents of two-wheeled electric vehicles have pushed the safe use of lithium batteries to the forefront of the wind and waves. This has to lead to reflection and questions: is lithium battery safe? How to use lithium battery to be safe? The answer may be found in this article.

The safety of lithium battery of electric vehicle (especially electric two-wheeled vehicle) includes two aspects: the safety of lithium battery itself and the safety of lithium battery use.

On the first level, there is no doubt that the lithium batteries produced by regular lithium battery manufacturers are safe, especially those that have focused on the field of lithium batteries for many years, leading technology and mature products. However, with the release and implementation of the new national standard for electric bicycles, lithium electrification of electric bicycles has become a general trend. Some unprofessional manufacturers and even small workshops smell the cake of lithium electrification. In the absence of mature technology and professional production lines, products are eager for success and shoddy production without market inspection, resulting in no guarantee of the quality of lithium batteries produced, which leads to safety accidents. Therefore, when choosing lithium batteries, users must recognize the lithium batteries produced by regular enterprises.

The second level is how to manage and use the regular lithium battery. In the actual use of electric vehicles, there will be exposure, rain, wading, falling, overcharging, charger mismatch, indoor charging, private modification and other complex and diverse scenarios, all of which will increase the safety risk factor of electric vehicle lithium battery use. On this point, Xing Heng participated in the comic version of the White Paper on the safe use of Lithium-ion batteries for Electric bicycles, respectively, from the aspects of dealer / store safety management of lithium batteries, how users safely use lithium batteries, how to safely manage lithium batteries at centralized charging points, and emergency treatment of lithium batteries, etc., to explain the matters needing attention in the safe use of lithium batteries.

The White Paper on the safe use of Lithium-ion batteries for Electric bicycles (cartoon version) was issued by the China Bicycle Association in May 2021. Xing Heng, as one of the lead compilers, devoted great efforts. The cartoon version of the white paper is a further refinement of the 2020 text version of the white paper, in the form of cartoons more intuitive and vivid expression of the choice of electric vehicles lithium electrification has become a general trend, so that users are more aware of the advantages of lithium electric two-wheels. such as stronger power, longer life, more environmentally friendly materials, etc., at the same time, specific and visual to remind lithium operators and users of the safety matters in actual use.

Xing Heng is a senior lithium battery manufacturer, focusing on the lithium battery industry for 17 years, and has professional knowledge and rich experience in lithium battery production principle, operation principle, manufacturing process, safety management and use. In the process of compiling this cartoon version of the white paper, Xing Heng incorporated his professional knowledge on the safe use of lithium batteries into the pictures and texts of the cartoon white paper, making it easier for readers to understand lithium batteries, promoting the popularization of lithium battery safety knowledge among dealers and consumers, and providing complete management methods, use methods and emergency treatment plans for the safe use of lithium batteries. It is expected to guide and promote the development of the standard of safe application of lithium batteries in the electric bicycle industry.

From the cartoon version of the white paper, we can understand that the root cause of the battery safety accident is the heat out of control in the battery, the battery in the thermal out of control state, the rapid release of energy, at the same time, there are more side reactions in the battery, resulting in a large amount of heat, safety problems follow. So regular lithium battery manufacturers need to put an end to these safety problems in battery research, design and manufacture. Xing Heng, who has been engaged in the research and manufacture of lithium batteries for 17 years, once said: "Safety is the bottom line and top priority of lithium batteries." Therefore, in terms of safety, Xing Heng insists on achieving the extreme in every link of battery production, from the selection of cathode materials to the design of cell structure, to the manufacturing process, from BMS research and development to independent PACK design, and then to special chargers. Either choose the material and structure that are safe by themselves, or adopt safety protection measures to ensure the safety of the battery in an all-round way.

The quality of Xing Heng's products can be said to be well-known in the electric two-wheeler industry. The total number of global users of lithium batteries for electric vehicles has exceeded 18 million, ranking first in global sales, with 0 major safety accidents. Big electric car brands such as Yadi, Emma, Tailing, Lvyuan and so on all use Xingheng lithium battery for power matching. If you have a lithium electric car produced by a regular manufacturer, you might as well open the battery warehouse and have a look. There is a good chance that Xingheng lithium battery will be assembled. Based on seventeen years of precipitation in the lithium battery industry, Xing Heng not only makes lithium batteries professionally and safely, but also has professional and rich experience in how to safely manage and use lithium batteries. This cartoon version of the white paper is to pass on the practical and effective knowledge of the safe use of lithium batteries to everyone.

For lithium battery dealers and stores, privately modifying and tampering with lithium batteries is one of the main culprits leading to safety problems of lithium batteries. Therefore, dealers and stores should ensure that they do not tamper with the capacity and voltage of the battery pack, do not tamper with the entire vehicle battery warehouse, do not use batteries that do not match the vehicle factory instructions, and store the lithium battery in an environment where the lithium battery is dry and ventilated, away from the fire source, the temperature is-5 ℃-35 ℃, and there are fire fighting facilities. In order to ensure the safety closed-loop management of lithium battery before circulation to users, responsible for their own operation, but also responsible to consumers;

For users, it is strictly forbidden to bring the lithium battery into the home or inhabited environment for storage and charging, choose the charger that matches the battery, avoid reversing the positive and negative electrodes, avoid charging in the environment below 0 ℃ or higher than 45 ℃, and be careful not to disassemble and repair the battery by yourself. if you encounter special circumstances such as soaking, soaking or falling, you need to report for repair and testing in time, and be responsible for your own life safety.

For the centralized charging point, it is necessary to do a good job in safety management. First of all, the centralized charging site should be built in an open and well-ventilated position to prevent rain and more than 2 meters away from the heat source; secondly, fire-fighting facilities on the site should meet the requirements of laws and regulations; finally, the charging socket should be fixed and grounded, one socket and one charging port is a special socket for electric vehicles. At the same time, when using charging piles, users should avoid charging for too long, charging unsuitable batteries, and avoiding the mixed use of lithium charging piles and lead-acid charging piles.

No matter who it is, when there is an emergency, take the right way to remedy it. When there is a high temperature in the battery, the power should be cut off in time, the high temperature can be extinguished by dry ice fire extinguishing qi, sand completely covered, high temperature battery immersed in water and so on. When there is an open fire, fire hydrant is immediately used to cool the water, and so on. When the battery is smoking at high temperature, the hydraulic vehicle should be transferred to the open area to isolate the battery pack that is not on fire. At the same time, the room should quickly open the doors and windows to maintain ventilation, reduce the smoke concentration or temperature, and avoid smoke injury.

Coordinated development to promote the lithium industry, please climb to another high-rise building

In the context of new energy travel, lithium electric travel has become a trend, and lithium battery safety is the fundamental guarantee of green travel. The safety of lithium batteries is not only related to lithium battery manufacturing enterprises, but also closely related to all kinds of enterprises in the industrial chain. Relevant government departments need to strengthen the regulation and management of safe travel of electric vehicles, industry management departments and industry associations need to lead enterprises to formulate safety standards, and lithium battery manufacturers and head vehicle factories also need to strengthen training and publicity on the safety management and use of dealers, stores and users. Really based on users, service users. At the same time, the industry needs joint supervision to put an end to speculators fishing in troubled waters and disrupt the healthy development of the industry.

Only by ensuring the safety of every link, can we ensure the quality of lithium battery products, ensure the safe travel of users, let more people face up to lithium battery and trust lithium battery, and finally promote the popularization of lithium electrification. On the way to the popularization of lithium electrification, there are no rivals, only comrades-in-arms. Only when the upstream and downstream enterprises of the lithium industry share the same breath, share the same fate, share successful experiences, share the responsibility of the times, and advance hand in hand, can the popularization of lithium electricity go faster and the road of development of the lithium industry go further.