1. Causes of thermal runaway of lithium iron phosphate batteriesThermal runaway of lithium iron phosphate batteries is a complex process involving multiple factors. The following are the main reasons:① Internal short circuit of the battery: Due to defects in the manufacturing process, damage during use, or accumulation of electrolytes inside the battery, the internal short circuit of the battery may occur. The large amount of heat generated by the short circuit cannot be dissipated in time, causing thermal runaway.② Overcharge or over-discharge: When the battery is overcharged or over-discharged, it will cause the internal temperature of the battery to rise, causing thermal runaway.③ External environmental factors: High temperature, extrusion, acupuncture and other external environmental factors may also cause battery thermal runaway.2. Impact of thermal runaway of lithium iron phosphate batteriesThe thermal runaway of lithium iron phosphate batteries not only affects the performance of the battery, but may also cause safety problems. The specific impacts are as follows:① Degraded battery performance: Thermal runaway will cause the internal temperature of the battery to rise, resulting in a decrease in battery capacity, reduced charging and discharging performance, and shortened battery life.② Safety risks: The high temperature generated by thermal runaway may cause fire or explosion, posing a threat to the safety of people and property.③ Impact on the performance of electric vehicles: Lithium iron phosphate batteries are the power source of electric vehicles. Thermal runaway may affect the normal operation of the vehicle and even cause the vehicle to fail to start.3. Countermeasures for thermal runaway of lithium iron phosphate batteriesIn order to reduce the risk of thermal runaway of lithium iron phosphate batteries, countermeasures can be taken from the following aspects:① Battery pack balancing management: Through balancing management technology, ensure that each battery cell in the battery pack is in a similar working state to avoid overcharging or over-discharging of individual batteries.② Battery cooling system optimization: Use advanced cooling technologies such as liquid cooling and heat pipe cooling to improve battery heat dissipation performance and reduce the risk of thermal runaway.③ Battery pack thermal management: Establish an effective thermal management system to monitor and control the temperature of the battery pack in real time to avoid thermal runaway caused by high temperature.④ Establish an emergency plan: For possible battery thermal runaway events, formulate corresponding emergency plans to ensure that they can be handled in a timely and effective manner when they occur, and minimize personnel and property losses.

At present, our 314Ah lithium battery cell has obtained certifications such as UN38.3, UL1973, UL1642, UL9540A, IEC62619, etc., it is preparing to serve overseas markets!LF314 can achieve an energy density of 180Wh/kg while maintaining the shape of LF280 lithium battery cells, which will increase the energy per unit volume and saving customer application space.LF314 lithium battery cells are currently widely used in 215Kwh, 373Kwh industrial and commercial energy storage systems, 20 foot and 40 foot cabinets. They are widely popular in the Chinese energy storage application market and have been delivered in bulk to markets such as Europe and the United States.Welcome to contact: info@bosaenergy.cnBosa EnergyBosa Energy with 150GWH capacity and over 400,000 electric bus/utility vehicle application experience we are listing first 5 in China power battery industry, actaully in  2023 we are the number 3 on li-ion cell delivery in China Market. We cooperate with Yutong/Geely/Damiler etc.We are also offering Continer ESS systems and delivered 5GWh ESS in 2023. In local market, we are offering OEM service for Changan, CALB, National grid, Ping Gao Electric , Xuji electronics, Ruineng electronics, they are our main Container ESS suppliers in China Market.Our daliy output capacity at present is 10Mwh and production capacity 20GWh;For excellent quality and performance our products are popular in more than 30 countries in the world. We also have established warehosue in Germany and Netherlands to provide safety stock timely delivery for our customers.l Customized and Flexiblel High Delivery capacityl Wide Applicationsl Rich experience on Lithium battery pack

1.Reasons for low voltage of lithium batteries(I) Influence of external factors① External short circuit and overcharge: Explore the phenomenon that the internal pressure and temperature of lithium batteries may increase when the external circuit is short-circuited or overcharged.② High-rate and high-current charging: Analyze the electrolyte decomposition and negative electrode material damage that lithium batteries may face under high-current and fast charging conditions.③ Internal short circuit and micro short circuit: Study the short circuit phenomenon caused by tiny particles inside lithium batteries and its impact on battery performance and life.(II) Battery factors① Self-discharge phenomenon: When lithium batteries are not in use, they will gradually lose power due to internal chemical reactions, affecting the long-term storage performance of the battery.② Battery aging problem: As the number of cycles increases, the capacity of lithium batteries will gradually decrease, resulting in battery performance degradation and affecting the endurance of the device.③ Increased internal resistance: The increase in internal resistance of aging batteries will aggravate energy loss, reduce battery efficiency, and cause low voltage problems.2. Low voltage solution(I) Diagnosis and evaluation① Understand the battery usage in detail: In-depth analysis of the battery's historical charge and discharge records, identify usage patterns that may affect the battery life.② Choose a suitable charger: Evaluate the compatibility of existing chargers to ensure that their output parameters meet the battery requirements and avoid overcharging or undercharging.③ Monitor battery health: Regularly check key indicators such as battery voltage and internal resistance to promptly detect potential low voltage risks.(II) Recovery and repair① Slow charging strategy: By gradually increasing the charging current, avoid internal short circuits in the battery and effectively improve battery performance.② Professional equipment diagnosis: Use precision instruments to conduct comprehensive battery testing, locate the specific cause of the low voltage problem, and provide a basis for targeted repairs.

Product specification：Picture：Vehicle application pictures：Bosa EnergyBosa Energy with 150GWH capacity and over 400,000 electric bus/utility vehicle application experience we are listing first 5 in China power battery industry, actaully in  2023 we are the number 3 on li-ion cell delivery in China Market. We cooperate with Yutong/Geely/Damiler etc.We are also offering Continer ESS systems and delivered 5GWh ESS in 2023. In local market, we are offering OEM service for Changan, CALB, National grid, Ping Gao Electric , Xuji electronics, Ruineng electronics, they are our main Container ESS suppliers in China Market.Our daliy output capacity at present is 10Mwh and production capacity 20GWh;For excellent quality and performance our products are popular in more than 30 countries in the world. We also have established warehosue in Germany and Netherlands to provide safety stock timely delivery for our customers.l Customized and Flexiblel High Delivery capacityl Wide Applicationsl Rich experience on Lithium battery pack

Product specification：Picture：Bosa EnergyBosa Energy with 150GWH capacity and over 400,000 electric bus/utility vehicle application experience we are listing first 5 in China power battery industry, actaully in  2023 we are the number 3 on li-ion cell delivery in China Market. We cooperate with Yutong/Geely/Damiler etc.We are also offering Continer ESS systems and delivered 5GWh ESS in 2023. In local market, we are offering OEM service for Changan, CALB, National grid, Ping Gao Electric , Xuji electronics, Ruineng electronics, they are our main Container ESS suppliers in China Market.Our daliy output capacity at present is 10Mwh and production capacity 20GWh;For excellent quality and performance our products are popular in more than 30 countries in the world. We also have established warehosue in Germany and Netherlands to provide safety stock timely delivery for our customers.l Customized and Flexiblel High Delivery capacityl Wide Applicationsl Rich experience on Lithium battery pack

Product specification：Picture：Bosa EnergyBosa Energy with 150GWH capacity and over 400,000 electric bus/utility vehicle application experience we are listing first 5 in China power battery industry, actaully in  2023 we are the number 3 on li-ion cell delivery in China Market. We cooperate with Yutong/Geely/Damiler etc.We are also offering Continer ESS systems and delivered 5GWh ESS in 2023. In local market, we are offering OEM service for Changan, CALB, National grid, Ping Gao Electric , Xuji electronics, Ruineng electronics, they are our main Container ESS suppliers in China Market.Our daliy output capacity at present is 10Mwh and production capacity 20GWh;For excellent quality and performance our products are popular in more than 30 countries in the world. We also have established warehosue in Germany and Netherlands to provide safety stock timely delivery for our customers.l Customized and Flexiblel High Delivery capacityl Wide Applicationsl Rich experience on Lithium battery pack