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Why lithium batteries became a time bomb "
According to the United States known science writer Marshall Brain series of articles about lithium batteries, the vast majority of lithium explosion caused a short circuit, and the specific reasons, including stress Load / use over current age.
The lithium battery has been widely used as a phone battery, d IGITAL Battery chamber c amcorder battery , the manufacturing process, as the manufacturing process itself imperfect, it is easy to isolate between the two poles, leaving a metal powder, copper, pieces of aluminum foil. The angle is given in battery as fever (more common in long-term use or load), such as boiling water in a grain of rice, as in the electrolyte so that the random thermal motion. If you ever have the battery positive and negative particles or residues near the middle of the diaphragm, could create a split shot perforating micro-short circuits. As flammable organic electrolyte batteries micro-short circuit caused an explosion in May, burns and other accidents, usually the following three cases:
1. The sparks ignited the electrolyte, and thus lead to a catastrophe to come into contact with the body in plastic and inflammable and cause a fire;
2. Experienced a temperature rise caused by the battery, the battery in the space is small, perhaps due to increased pressure to explode;
3. Batteries slower growth temperature, the battery case to melt gradually, so that the leak corrosive electrolyte.
Battery Safety Issues Lithium I can not stop now, because then the advanced manufacturing technology, will inevitably lead to the planting of seeds in the electrolyte "missile." Note that the formal production of lithium batteries and sales of high levels of lithium batteries of acceptable quality, number and size of the waste has been monitored in a small risk, very low perforation of the cell membrane outside the Shell also used flame resistant material, are not prone to fires.
The explosion-proof lithium battery of measures
Security Issues lithium batteries, the battery manufacturer, very conscious then what were explosion-proof action? Li-ion batteries for laptops, for example, its operating principle is as follows: Lithium batteries near full charge and discharge almost empty when the voltage drop, the control circuit detects this situation, notify the circuit cutting power protection to avoid overcharging or excessive discharge, in order to avoid shortening the battery life.
Lithium batteries have a portable power broader multi-level protection mechanism, even in the magazine, the unusual circumstances laptops, laptop battery also may become the state of the automatic protection is generally not an explosion. But once the control circuit protection circuit and the ability to work under hours, the battery on the point of "dangerous" files. Mobile phones and other electronic products, lithium battery and protection mechanisms against shock, similar to that.
You do not need "at arm's length"
In recent years, explosions ion Lithium often electronic newspapers, has caused panic among consumers so some people for their own mobile phone, MP3 prices often "to "arm, also because of fear, while long-term reserve laptop battery, lead scrap. However, the results of the survey, the majority of outbreaks of lithium batteries are the result of the attention of the user pays for safety tips such as unauthorized modification, the use of non-correspondence charger, battery placed in extreme environments such as the decisions.
Note that the lithium battery technology as a species after 30 years of study, has successfully marketed the technology matures, its security is guaranteed. Regular brands of lithium batteries in the factory have been numerous procedures test road after being sold and the feedback mechanism to remove the product over time.
United States Safety Administration (TSA) has implemented the recommendations of the safe use of lithiumbatteries:
1. Using the original charger: battery Li-ion charging time is the period of heavy bombardment. This battery charger is compatible with the original battery charger to ensure better security.
2. Like a reliable stack: try to buy original batteries, not to save money to buy "second hand goods", these batteries can be maintained and more reliable battery source.
3. Do not place the battery in extreme conditions: high temperatures, collisions, etc. are all important causes of the explosion battery, as far as possible, so that the battery is in a stable environment, away from areas at high temperatures.
4. No change: Many young people like their phones to "cosmetic" but was "bold but prudent" to transform mobile phones themselves. However, can easily lead to accidents inappropriate alteration. The phone is a sophisticated communications equipment in the design, manufacturers will have on safety, strictly textual research. After modification, the battery can not consider the environment before or increased security risks.
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