These three conditions may lead to lithium battery explosion

Images of blue on the right side of the battery is used for the experiment of 3. 2 volts lithium iron phosphate batteries, roughly equivalent to a capacity of electric vehicle battery monomer. ” The third kind is heating, such as outside the weather is hot, or using the environment temperature is higher, this case can also cause some organic matter inside the battery, such as the battery is negative between the melt and contraction of the diaphragm, causing the battery is negative sub, solar photovoltaic power voltage will eventually cause burning and explosion accident of the battery. Happened on August 14, nanjing network about car deflagration together to another injury accident, nanjing built his police report released by the new progress of investigation: after find out, CAI a get on the bus passengers carry plastic food, left hand when the right hand carry to repair electric lithium battery pack, driving about six minutes to the site, chest without back can you back suddenly caught fire smoke. Pilot weekend trip firefighting, photovoltaic sunshine shed photograph vehicle hit a roadside flower bed to stop. Its electrical engineers research institute in jiangsu sun pointed out that: & other; Lithium battery, it is an energy storage device, it will be in the release of an orderly process more convenient our life, but in a state of disorder or is out of control, to release this energy can cause larger harm, even we often see this kind of battery the combustion or explosion phenomenon. At present, some back, left leg burns, the driver not life-threatening, passengers CAI one died on the spot. Powerful lithium-ion battery, if use undeserved, consequences be dangerous! The conductive material from inside the battery is lithium ion, can be transported through the diaphragm in shuttling back and forth between positive negative energy, but in extreme cases, the battery is negative, the diaphragm between the inside could be produced because of the heat shrinkage and melt, this will direct contact with the battery of the positive and negative together, can produce a larger current in an instant, the current inside the battery will produce larger heat. Because the battery has passed a combustion experiment, the diaphragm is organic matter. In the process of release and out of control, will produce some combustible gases, such as hydrogen, carbon monoxide, even there are some poisonous gases, toxic gases such as hydrogen sulfide, hydrogen fluoride, will cause a damage and harm to people. On the left side of the block & other; Throughout the whiteboard &; Is the state after combustion experiment, can see the relief valve has opened, present state of burn. If not be able to timely inhibition, the quantity of heat is likely to continue to produce, and lead to more diaphragm melt, thus the positive and negative contact together and have more photovoltaic voltage to form a positive feedback, resulting in a thermal runaway, in extreme cases, may cause burning of the battery. Lithium battery is closely related to life, but the explosion consequences, what is the reason, can lead to lithium battery explosion? The second is short circuit, internal short circuit may be some damage on the structure, caused by direct contact with the inside of the positive and negative, there may be some words of external short circuit including conductive wire, solar building copper wire or metal sheets, such an instantaneous high current, may cause fever and burning of the battery. So, under what circumstances, lithium battery appear safe hidden trouble? Sun said, pay attention to these three situations! When the battery internal after being opened, it is a layer of a layer of roll shape of structure, like a cone, one is positive, is a layer of cathode, and a layer is the diaphragm.