The difference between lead -acid batteries and lithium ion batteries.solar power battery storage

　　When it comes to lead -acid batteries, the first thing people think of are electric bicycles. In fact, according to its structure and usage, the occupation divides the lead -acid battery into four categories: 1. Movement 2. Power 3. Fixed valve control sealing 4. Small valve control sealing 4. This method is important to classify from the structural aspect, but it must also be considered. For non -battery practitioners, this is still difficult to understand. It is simple to understand the classification from the perspective of pure shopping malls.

　　1. Main power, including: communication equipment, industrial instruments, industrial control machine tools and portable equipment;

　　2. Spare power, including emergency equipment, communication base stations, electronic switching systems and solar systems. There are many intersections in the use of classification and lithium -ion batteries, which is important to reflect the capacity of power lithium batteries such as electric bicycles and small passenger cars. In the field of power lithium batteries, it is important to match the two skills, so it is very representative to compare lead -acid batteries with lithium ion batteries. Otherwise, the reference is uncertain, and it is infinite.

　　Everything between the two is based on the characteristics of the material. The positive and negative materials of lead -acid batteries are lead, lead and concentrated sulfuric acid. There are four components of lithium -ion batteries: positive (lithium oxide cobalt/lithium lithium manganate/lithium iron/three yuan), negative graphite, diaphragm and electrolyte.

　　1. Different energy density: 30WH/KG lead -acid battery, 110Wh/kg lithium ion battery;

　　2. The cycle life is different, 300-500 times of ordinary lead-acid batteries, 1,000 times lithium-ion battery, two dry flow skills of electric bicycle lithium, lithium-ion battery ternary lithium and iron phosphate lithium ion batteries are also different. Lithium -ion battery three yuan discharge 1,000 times, lithium iron phosphate ion battery life can reach 2000 times;

　　3. Charging method: The voltage constraint and current constraint method of lithium -ion batteries, that is, to give limited threshold current and voltage, and there are many methods for charging lead -acid batteries, such as the constant current charging method, constant voltage charging method, phase current current, phase current current The charging method and the upskin charging cannot be described in detail.

　　1. Safety: Large -current discharge of lead -acid batteries, because it has high sealing, even if there is a incident (such as leakage), yang, yin, and lead -acid electrolyte are not flammable. The operating principle of a lithium -ion battery is to embed lithium ions through a thin film between positive and negative, and to present a dendritic through large current. Both elements are caused by incineration and blasting of lithium ion batteries.

　　2. Capital: Lead -acid batteries use lower materials and operating requirements. In the case of electric bicycles, lithium car batteries may be the value of the entire electric car and the assembly of lead -acid batteries

　　Lead -acid batteries and lithium ion batteries have comparative advantages on electric bicycles and small household cars: lithium -ion batteries have the advantages of electrical function and convenience, while lead -acid batteries have the advantages of safety and capital. The same is true of other applications.

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