Generally, the temperature limit of mobile phone lithium batteries is 40 degrees Celsius, 40-60 degrees Celsius. If the time is not too long, there will be no problem. Lithium batteries can also be specially customized to withstand high temperatures, and their high temperature performance will be much better.
The temperature limit set for cell phone lithium batteries is generally 40 to 60 degrees. Batteries are generally marked with explosion-proof valves, and high temperature resistant lithium batteries can withstand temperatures of up to 800 degrees. Generally, lithium batteries are tested to withstand high temperatures of 200 degrees, 500 degrees and 800 degrees, but they are generally not exposed to such high temperatures in daily life.
For lithium batteries, there is nocurrently no clear theory in the industry to support the inevitable relationship between internal resistance, discharge platform, life, capacity, etc. under various temperature performance. Calculation formulas and relevant mathematical models. are still under study. Generally speaking, lithium batteries are not sensitive to temperatures between 0 and 40°C. However, once the temperature exceeds this range, the lifespan and capacity will be compromised.
In order to ensure the lifespan, safety and reliability of lithium batteries, advanced protection management systems are used in high temperature resistant lithium battery packs to prevent overcharging , overdischarge, high temperature operation and low temperature. temperature charging or short circuit be damaged or even cause safety problems.
Detailed information:
Be sure to pay attention to the following points when purchasing.
1. Is the capacity clearly marked? Batteries without clearly marked capacity (such as 1000 mAh or 1000 mAh) are most likely using lower quality batteries or recycled batteries. Many inexpensive batteries on the market are made from recycled batteries. Although they are cheap, their lifespan is short and their unstable quality can damage the phone.
2. Is there guaranteed standby time? Standby time is the duration of continuous use from the time the battery is installed in the phone until the next charge. Generally, batteries sold in the market cannot guarantee standby time to customers. This is because the quality of the batteryis unstable. Many cheap batteries use poor quality battery cores, so the standby time is very short.
3. Whether to install a safety protection circuit board. Without a protective circuit board, the lithium battery may deform, leak and explode. Faced with fierce competition for lower prices, each company searches for cheaper protective circuit boards or even omits this device, leaving the market flooded with lithium batteries that are at risk of exploding. Consumers cannot determine whether there is a protective circuit board from its appearance, so it is better to choose a reputable trader to purchase it.
Proper use temperature and storage temperature of lithium polymer battery
This battery will explode at this temperature.
According to the iAsk Life Knowledge Network, the temperature range oflithium batteries is toleratedBetween -20°C and 50°C, if the temperature exceeds this value, lithium batteries catch fire very easily. Whether ordinary batteries or irregular batteries, they may explode.
In normal use, the maximum temperature should generally not exceed 60 degrees Celsius to avoid explosion. Lithium polymer batteries will produce gas after prolonged use, so they need to expand in severe cases. Be sealed. Liquid will leak everywhere. It is recommended to store lithium batteries in a cool place to avoid exposure to sunlight.
The suitable operating temperature of lithium polymer batteries is normal temperature (25 degrees Celsius ± 5), and the theoretical operating temperature is -40 to 70 degrees Celsius. The storage temperature complies with the theoretical use temperature (-40 to 70 degrees Celsius).
Beat themPolymer lithium teries use file alloy as the positive electrode of the battery, polymer conductive materials, polyacetylene, polyaniline or polyparaphenol as the negative electrode of the battery, and the electrolyte uses organic solvents. The temperature limit of lithium polymer batteries is that because the electrolyte is made of colloidal material, no gas will be generated from inside the battery under high temperature conditions, thereby improving the safety of the battery .
Detailed informationLithium polymer batteries have the following characteristics and advantages:
1. Lithium polymer batteries have extremely high plasticity and can be made into thin batteries (the minimum thickness can be as thin as possible). such as 0.5mm), can also be made into batteries of different shapes, greatly improving the portability of the uilizer.
2. The storage capacity of lithium polymer batteries has been significantly improved compared to previous lithium batteries. Theoretical data obtained from the production process shows that the storage capacity of lithium polymer batteries is 10% higher than that of lithium polymer batteries. ordinary lithium-ion batteries.
Baidu Encyclopedia-Lithium Polymer Battery