During the charging and discharging process of a battery, iron impurities act like hidden "time bombs," severely impacting the performance of lithium-ion batteries. When the battery is charged or discharged, iron undergoes complex chemical reactions with the electrolyte. The electrolyte is a crucial medium for ion transport in lithium-ion batteries, typically composed of lithium salts and organic solvents. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC Removing iron prevents it from reacting with components in the electrolyte, which could lead to its decomposition.
Iron ions may undergo redox reactions with certain functional groups in organic solvents, producing a series of products. These products can be solid precipitates or gases. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC After iron removal, preventing the formation of solid precipitates ensures they do not adhere to the electrode surface, hindering ion transport and thus affecting the battery's conductivity.
Iron impurities can cause a decrease in conductivity, meaning the internal resistance of the battery increases, much like how a road becomes narrower, making it harder for current to pass through. PTMS LITHIUM COBALT ACID MATERIAL MAGNETIC removing iron effectively reduces the increase in internal resistance, significantly improving the charging and discharging efficiency of the battery. A battery that could previously be quickly charged or efficiently discharged will have its charging time extended due to the influence of iron impurities, and the power output during discharge will also decrease, severely impacting the battery's performance.
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