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What is the difference between an electric car lithium battery and a black gold battery?

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What is the difference between an electric car lithium battery and a black gold battery?

What is the difference between an electric car lithium battery and a black gold battery?


The difference between an electric vehicle lithium battery and a black gold battery is as follows:


1. Safety comparison: The power lithium battery (lithium manganate, lithium iron phosphate) materials have different safety differences. The black gold battery technology is quite mature and the safety is higher than that of lithium batteries.


2, environmental comparison: lithium batteries are not polluted (most, but there are also poor manufacturers), and black gold batteries have heavy metal lead pollution. Therefore, electric vehicles using lead-acid batteries will still pollute the environment.


3. Price comparison: The price of lithium batteries of the same capacity on the market is more than double that of black gold batteries. This is why electric vehicles that use lithium batteries are more expensive.


4. Energy comparison: The mass ratio, volume ratio and energy ratio of lithium batteries are about 40% higher than those of black gold batteries.


5, self-discharge rate comparison: lithium battery monthly self-discharge is less than 3%, while black gold battery 15~30%, the difference is large.


6. Comparison of service life: At present, the general-purpose lithium iron phosphate is charged 1500 times, without memory effect. After charging 1500 times, about 85% of the storage capacity, while the black gold battery is about 500 times, the storage capacity will be greatly reduced, and the memory effect is very obvious. Therefore, electric vehicle batteries using lithium batteries will last longer.


7, voltage platform comparison: lithium battery voltage platform is greater than 3V, black gold battery is 2V.


8. Comparison of discharge characteristics: Simply say that the same capacity of the battery, in the case of large current discharge, the lithium battery is about 30% more electricity than the black gold battery.


[Overcharged battery damage] The electric scooter charger charges the battery packs connected in series at the same time. The battery with higher voltage will be fully charged first, and the battery with lower voltage will be filled or even charged. Since the charger is set to charge or stop charging at the overall voltage, the fully charged battery will be in an "overcharged" state. The "pressure difference" hour has little effect on the battery. When the "pressure difference" is large, the battery pool that often "overcharges" will cause the thermal reaction of the electrolyte to increase, until the battery is filled.


[Defective battery damage] The "debt" of the old electric scooter is a phenomenon that destroys the coating of the storage battery plate caused by the excessive discharge of the battery when the battery is low. It should be known that the working voltage of any vehicle-mounted electrical appliance has a standard range. If the electrical appliance exceeds this range, the electrical appliance is easy to be short-circuited or even burned. Below this range, the electrical appliance cannot be started or works normally, and even affects the service life. The vehicle-mounted electrical appliance and the storage battery are the same.


Is the lithium battery on the battery car?


Yes, lithium battery is a kind of battery that uses lithium metal or lithium alloy as negative electrode material and uses non-aqueous electrolyte solution, which was invented by Edison.


The reaction equation for battery operation is: Li + MnO2 = LiMnO2 The reaction is a redox reaction and discharge.


2. In the past, because the chemical properties of lithium metal were very active, the requirements for processing, storage, and use were very high, so lithium batteries have not been used for a long time.


With the development of modern science, lithium batteries have now become mainstream.


On February 22, 2016, ICAO announced the ban on lithium battery baggage [1].


Lithium batteries are generally divided into two categories: lithium metal batteries and lithium ion batteries.


3. Lithium-ion batteries do not contain metallic lithium and are rechargeable.


The fifth-generation lithium-metal battery of rechargeable batteries was born in 1996, and its safety, specific capacity, self-discharge rate and performance price ratio are better than lithium-ion batteries.

Pub Time : 2019-11-25 10:31:45 >> News list
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