CR1625 battery

　　How powerful is BYD’s power CR1625 battery safety technology?

　　BYD Power CR1625 battery is one of the first echelon domestic power CR1625 battery companies. BYD has mature experience in power CR1625 battery development and has a professional R&D team for materials & electrochemistry & power CR1625 battery technology development and process development. It has accumulated rich experience in power lithium CR1625 battery R&D and production, and has summarized a complete set of effective production processes and controls. Standards pave the way for mass production and also provide guarantee for a high degree of consistency between single cells.

　　BYD's "high-performance power CR1625 battery industry chain R&D and production technology", "safe and efficient CR1625 battery pack technology" and "CR1625 battery system efficient control technology" provide reliable technical support and advantages for its competition for the "Annual Technology Innovation Award" .

　　1. High-performance power CR1625 battery industry chain R&D and production technology. Developed a new type of electrolyte that is resistant to high temperatures and low impedance, as well as a high-temperature resistant multi-layer composite ceramic diaphragm (the shrinkage rate at 350°C is only 2%), invented high-temperature ceramic insulation packaging for poles and low-voltage explosion-proof technology, and developed high-density, low-voltage Strain electrodes, etc., improve the cycle life and safety and reliability of the CR1625 battery.

　　2. Safe and efficient CR1625 battery pack technology. The application of lightweight pallet materials and high-density CR1625 battery cell layout solutions enables standardized CR1625 battery module design; a design method that combines passive protection and active protection is used to achieve a CR1625 battery system group efficiency of 89%.

　　3. High-efficiency control technology for CR1625 battery systems. Established a model for synchronous estimation and tracking of CR1625 battery status and parameters, and implemented a high-precision CR1625 battery system status estimation algorithm; invented CR1625 battery self-heating technology based on LC high-frequency oscillation pulse technology, and was the first to realize the heating time of the CR1625 battery system from -30°C to 0°C. It is shortened to 8 minutes, breaking through the problem of long external heating time.

　　How has BYD, which has always kept a low profile, never had a CR1625 battery safety incident in 15 years? Let us uncover the secrets of BYD’s power CR1625 battery safety technology. BYD's research direction of power batteries is mainly lithium iron phosphate batteries and ternary lithium batteries. The safety of lithium iron phosphate batteries is higher than that of ternary lithium batteries, so we will explore the relatively unsafe ternary lithium batteries. Ternary lithium batteries have the advantages of high energy density and large output power. However, the shortcomings are also very prominent. The deoxidation temperature of the ternary material is 200°C. It has poor high-temperature stability and the exothermic energy exceeds 800J/g. It cannot pass the needle stick test. If the ternary CR1625 battery is internally short-circuited, it is easy to cause serious damage. safety incident.

　　Thermal runaway is a very important risk factor in CR1625 battery safety. When thermal runaway occurs, there is no way for soft-pack batteries to release energy in a directed manner, but hard-shell prismatic batteries can have some specific exhaust and directional design in the module. Fire exhaust channel. This ensures that even if a cell goes out of control, the energy of the cell can be released along the fire exhaust channel, and the thermal insulation and fireproof materials between cells can protect other cells from being affected, thus ensuring the safety of the entire system.

　　Therefore, BYD, which has always been known for its safety and technology, finally chose hard-shell prismatic batteries. The prerequisite for bringing consumers the wonderful driving experience of electric vehicles is to ensure the safety of passengers. This is BYD's consistent style. BYD has not had any safety accidents caused by CR1625 battery problems in the past 15 years. In the field of electric vehicles, the CR1625 battery life and safety that consumers are most concerned about have been initially solved by BYD. We look forward to BYD's further achievements in electrification and intelligence in the future. Good performance, stay true to your original intention and move forward.

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