What is a power lithium battery? What is the difference between it and ordinary batteries?

What is a power lithium battery ? What is the difference between it and ordinary batteries? Today, the power battery manufacturer will take you to understand.

The power source of new energy vehicles is generally dominated by power lithium batteries . The power lithium battery is actually a power source that provides a power source for transportation vehicles. The main difference between it and ordinary batteries is:

1. Different in nature

Power lithium battery manufacturers: Power batteries refer to batteries that provide power for transportation, generally compared to small batteries that provide energy for portable electronic devices; general batteries use lithium metal or lithium alloy as the negative electrode material. Primary batteries using non-aqueous electrolyte solutions are different from rechargeable lithium-ion batteries and lithium-ion polymer batteries.

Second, the lithium battery capacity is different

If it is a new battery, use a discharger to test the battery capacity. The capacity of general power batteries is around 1000-1500mAh; while the capacity of general batteries is above 2000mAh, and some can reach 3400mAh.

Three, the discharge power is different

A 4200mAh power battery can discharge the power in just a few minutes, but the general battery can't do it at all, so the discharge capacity of the general battery is completely unmatched by the power battery. The biggest difference between the power battery and the general battery is that its discharge power is large and its specific energy is high. Since the power battery is mainly used for vehicle power supply, it has higher discharge power than ordinary batteries.

Fourth, use different

The batteries that provide driving power for electric vehicles are called power batteries, including traditional lead-acid batteries, nickel-metal hydride batteries and emerging lithium-ion power lithium batteries , which are divided into power-type power batteries (hybrid electric vehicles) and energy-type power batteries. (pure electric vehicle); lithium batteries used in consumer electronic products such as mobile phones and notebook computers are generally referred to as lithium batteries, which are different from power batteries used in electric vehicles.

Main varieties of existing power batteries:

At present, the mainstream technologies on the market are still dominated by lead-acid battery technology, nickel-metal hydride battery technology, fuel cell technology and lithium battery technology.

In contrast to general chemical batteries, fuel cells can make up for fuel, usually hydrogen. Some fuel cells can use methane and gasoline as fuel, but their use is generally limited to industrial areas such as power plants and forklifts. The basic principle of hydrogen fuel cells is the reverse reaction of electrolysis of water. Hydrogen and oxygen are supplied to the anode and cathode, respectively. After the hydrogen diffuses outward through the anode and reacts with the electrolyte, the electrons are released to the cathode through the external load.

The working principle of a hydrogen fuel cell is that hydrogen gas is sent to the anode plate (negative electrode) of the fuel cell. Through the action of the catalyst (platinum), one electron in the hydrogen atom is separated, and the hydrogen ion (proton) that has lost the electron passes through the proton. The AC membrane reaches the cathode plate (positive electrode) of the fuel cell and electrons cannot pass through the proton AC membrane. The electrons can only reach the cathode plate of the fuel cell through the external circuit, thereby producing an electric current in the external circuit.

The above is the relevant elaboration brought by the power battery manufacturer, I hope it will be helpful to everyone.