can lithium battery be recharged
Not all lithium batteries can be charged.
There are two types of lithium batteries: lithium ion batteries do not contain metallic lithium and can be recharged. Lithium metal batteries are disposable batteries and cannot be charged. A non rechargeable battery is called a disposable battery. It can only convert chemical energy into electrical energy at one time, but can not restore electrical energy back to chemical energy. Such as lithium manganese dioxide primary battery and lithium thionyl chloride primary battery. Rechargeable batteries are called secondary batteries (also known as batteries). It can convert electrical energy into chemical energy for storage, and then convert chemical energy into electrical energy when in use. It is reversible, such as the common lithium-ion mobile phone battery on the market.
Lithium metal battery:
Lithium metal batteries generally use manganese dioxide as positive material, metal lithium or its alloy metal as negative material and non-aqueous electrolyte solution.
Discharge reaction: Li + MnO2 = LiMnO2
Lithium batteries were first used in cardiac pacemakers. The lithium battery has the advantages of extremely low self discharge rate and gentle discharge voltage, so that the pacemaker implanted into the human body can operate for a long time without recharging.
Lithium batteries generally have a nominal voltage higher than 3.0 volts, which is more suitable for integrated circuit power supply. Manganese dioxide batteries are widely used in calculators, digital cameras and watches.
1. Lithium primary batteries have poor safety and risk of explosion.
2. Lithium ion battery of lithium cobalt oxide can not discharge with high current, which is expensive and has poor safety.
3. Lithium ion batteries shall be protected from overcharge and discharge.
4. High production requirements and high cost.
5. The use conditions are limited, and the use of high and low temperature is dangerous.