Briefly describe the classification of batteries and the application of solar energy technology -Lithium - Ion Battery Equipment
The so-called battery is an electrochemical device that stores chemical energy and releases electrical energy when necessary. It uses a lead-based grid filled with sponge lead (also called a grid) as the negative electrode, a lead-based grid filled with lead dioxide as the positive electrode, and dilute sulfuric acid with a density of 1.26--1.33g/mlg/ml as the electrolyte. When the battery is discharging, metallic lead is the negative electrode and undergoes an oxidation reaction to produce lead sulfate; lead dioxide is the positive electrode and undergoes a reduction reaction to produce lead sulfate. When the battery is charged with direct current, elemental lead and lead dioxide are produced at the two poles respectively. After the power source is removed, it returns to its pre-discharge state, forming a chemical battery. The battery can be charged and discharged repeatedly. Its cell voltage is 2V. The battery is a battery pack composed of one or more cells, referred to as a battery. The most common one is 6V. Others include 2V, 4V, 8V, and 24V batteries. For example, the battery used in a car (commonly known as a battery) is a 12V battery pack with 6 batteries connected in series. Regarding traditional dry-charge batteries (such as car dry-charge batteries, motorcycle dry-charge batteries, etc.), distilled water must be added after a period of use to keep the dilute sulfuric acid electrolyte at a density of about 1.28g/ml; regarding maintenance-free batteries, their use Do not add distilled water until end of life.
There are different ways to classify batteries. The classification methods can be roughly divided into three categories. The first category: divided according to the type of electrolyte, including: alkaline batteries, batteries whose electrolyte is mainly potassium hydroxide fire solution: such as: alkaline Zinc-manganese batteries (commonly known as alkaline-manganese batteries or alkaline batteries), cadmium-nickel batteries, nickel-metal hydride batteries, etc. Acid batteries mainly use sulfuric acid aqueous solution as the medium, such as zinc-manganese dry batteries (some consumers also call them acid batteries), seawater batteries, etc.; organic electrolyte batteries mainly use organic solutions as the medium, such as lithium-ion batteries, Lithium-ion batteries, etc. Category 2: divided by working nature and storage method, including: primary batteries, also known as primary batteries, which are batteries that cannot be recharged, such as zinc-manganese dry batteries, lithium primary batteries, etc.; secondary batteries, which are rechargeable batteries, such as nickel-metal hydride Batteries, lithium-ion batteries, cadmium-nickel batteries, etc.; batteries are usually referred to as lead-acid batteries, which are also secondary batteries; fuel power cells, that is, active materials are continuously added to the battery from the outside when the battery is working, such as hydrogen-oxygen fuel power cells etc.; reserve battery, that is, the battery is not in direct contact with the electrolyte during storage, and the electrolyte is not added until the battery is used, such as silver magnesium battery, also known as seawater battery, etc. The third category: divided according to the positive and negative electrode materials used in the battery, including: zinc series batteries, such as zinc-manganese batteries, zinc-silver batteries, etc.; nickel series batteries, such as cadmium-nickel batteries, nickel hydrogen batteries, etc.; lead series batteries, such as lead-acid batteries etc.; lithium-ion batteries, lithium-manganese batteries; manganese dioxide series batteries, such as zinc-manganese batteries, alkaline manganese batteries, etc.; air (oxygen) series batteries, such as zinc-air batteries, etc.(Lithium - Ion Battery Equipment)
1. Lead-acid battery products mainly include the following types, and their uses are distributed as follows:
Starting battery: mainly used for starting and lighting cars, motorcycles, tractors, diesel engines, etc.;
Fixed battery: mainly used in communications, power plants, and computer systems as backup power for protection and automatic control;
Traction batteries: mainly used in various battery vehicles, forklifts, forklifts and other power sources;
Railway batteries: mainly used for starting and lighting power of railway diesel locomotives, electric locomotives, and passenger cars;
Batteries for energy storage: Mainly used to store electrical energy for wind power, solar power and other power generation.
2. UPS battery
UPS is called uninterruptible power supply because when there is a power outage, it can quickly switch to the "inverter" state, so that the computer in use will not lose important files due to a sudden power outage and no time to store them. It is not used as a backup power supply. If you just want to use electricity during a power outage, just buying an inverter is enough. Maintenance-free lead-acid batteries are mostly used in general household UPS.
3. Lithium iron phosphate battery
Lithium iron phosphate battery is the safest high-energy specific battery in the lithium-ion battery family. The discharge voltage of lithium iron phosphate batteries is very stable, generally 3.2V. The voltage changes rapidly in the later stages of discharge (importantly referring to the remaining 10% capacity), and the cut-off voltage is generally 2.5V. Ambient temperature, especially low temperature, will affect the discharge capacity of lithium iron phosphate batteries: the discharge capacity at -20℃ is 45% of the normal temperature capacity, -10℃ is 65% of the normal temperature capacity, -5℃ is 80% of the normal temperature capacity, 0 ℃ is 90% of normal temperature, and the discharge capacity changes very little between 0℃ and 20℃. The low-temperature performance of lithium iron phosphate batteries is better than that of lead-acid batteries.
4. Super battery
The super battery engine starting power supply is a device that can supply starting power to the internal combustion engine through rapid energy storage when the traditional battery equipped with the internal combustion engine fails and cannot be started.
In the application of solar photovoltaic power generation, there are currently four types of lead-acid maintenance-free batteries, ordinary lead-acid batteries, gel batteries and alkaline nickel-cadmium batteries. The most widely used solar batteries in China are: lead-acid maintenance-free batteries and gel batteries. These two types of batteries, because of their inherent maintenance-free characteristics and less pollution to the environment, are very suitable for use in reliable solar power supplies. systems, especially unattended workstations.
Ordinary lead-acid batteries require frequent maintenance and cause large environmental pollution, so they are mainly suitable for use in maintenance-capable or low-end situations.
Although alkaline nickel-cadmium batteries have better low-temperature, overcharge, and over-discharge performance, due to their high price, they are only suitable for special occasions.
With the widespread use of solar photovoltaic power generation systems, batteries as supporting batteries are attracting more and more attention.
There are different ways to classify batteries. The classification methods can be roughly divided into three categories. The first category: divided according to the type of electrolyte, including: alkaline batteries, batteries whose electrolyte is mainly potassium hydroxide fire solution: such as: alkaline Zinc-manganese batteries (commonly known as alkaline-manganese batteries or alkaline batteries), cadmium-nickel batteries, nickel-metal hydride batteries, etc. Acid batteries mainly use sulfuric acid aqueous solution as the medium, such as zinc-manganese dry batteries (some consumers also call them acid batteries), seawater batteries, etc.; organic electrolyte batteries mainly use organic solutions as the medium, such as lithium-ion batteries, Lithium-ion batteries, etc. Category 2: divided by working nature and storage method, including: primary batteries, also known as primary batteries, which are batteries that cannot be recharged, such as zinc-manganese dry batteries, lithium primary batteries, etc.; secondary batteries, which are rechargeable batteries, such as nickel-metal hydride Batteries, lithium-ion batteries, cadmium-nickel batteries, etc.; batteries are usually referred to as lead-acid batteries, which are also secondary batteries; fuel power cells, that is, active materials are continuously added to the battery from the outside when the battery is working, such as hydrogen-oxygen fuel power cells etc.; reserve battery, that is, the battery is not in direct contact with the electrolyte during storage, and the electrolyte is not added until the battery is used, such as silver magnesium battery, also known as seawater battery, etc. The third category: divided according to the positive and negative electrode materials used in the battery, including: zinc series batteries, such as zinc-manganese batteries, zinc-silver batteries, etc.; nickel series batteries, such as cadmium-nickel batteries, nickel hydrogen batteries, etc.; lead series batteries, such as lead-acid batteries etc.; lithium-ion batteries, lithium-manganese batteries; manganese dioxide series batteries, such as zinc-manganese batteries, alkaline manganese batteries, etc.; air (oxygen) series batteries, such as zinc-air batteries, etc.(Lithium - Ion Battery Equipment)
1. Lead-acid battery products mainly include the following types, and their uses are distributed as follows:
Starting battery: mainly used for starting and lighting cars, motorcycles, tractors, diesel engines, etc.;
Fixed battery: mainly used in communications, power plants, and computer systems as backup power for protection and automatic control;
Traction batteries: mainly used in various battery vehicles, forklifts, forklifts and other power sources;
Railway batteries: mainly used for starting and lighting power of railway diesel locomotives, electric locomotives, and passenger cars;
Batteries for energy storage: Mainly used to store electrical energy for wind power, solar power and other power generation.
2. UPS battery
UPS is called uninterruptible power supply because when there is a power outage, it can quickly switch to the "inverter" state, so that the computer in use will not lose important files due to a sudden power outage and no time to store them. It is not used as a backup power supply. If you just want to use electricity during a power outage, just buying an inverter is enough. Maintenance-free lead-acid batteries are mostly used in general household UPS.
3. Lithium iron phosphate battery
Lithium iron phosphate battery is the safest high-energy specific battery in the lithium-ion battery family. The discharge voltage of lithium iron phosphate batteries is very stable, generally 3.2V. The voltage changes rapidly in the later stages of discharge (importantly referring to the remaining 10% capacity), and the cut-off voltage is generally 2.5V. Ambient temperature, especially low temperature, will affect the discharge capacity of lithium iron phosphate batteries: the discharge capacity at -20℃ is 45% of the normal temperature capacity, -10℃ is 65% of the normal temperature capacity, -5℃ is 80% of the normal temperature capacity, 0 ℃ is 90% of normal temperature, and the discharge capacity changes very little between 0℃ and 20℃. The low-temperature performance of lithium iron phosphate batteries is better than that of lead-acid batteries.
4. Super battery
The super battery engine starting power supply is a device that can supply starting power to the internal combustion engine through rapid energy storage when the traditional battery equipped with the internal combustion engine fails and cannot be started.
In the application of solar photovoltaic power generation, there are currently four types of lead-acid maintenance-free batteries, ordinary lead-acid batteries, gel batteries and alkaline nickel-cadmium batteries. The most widely used solar batteries in China are: lead-acid maintenance-free batteries and gel batteries. These two types of batteries, because of their inherent maintenance-free characteristics and less pollution to the environment, are very suitable for use in reliable solar power supplies. systems, especially unattended workstations.
Ordinary lead-acid batteries require frequent maintenance and cause large environmental pollution, so they are mainly suitable for use in maintenance-capable or low-end situations.
Although alkaline nickel-cadmium batteries have better low-temperature, overcharge, and over-discharge performance, due to their high price, they are only suitable for special occasions.
With the widespread use of solar photovoltaic power generation systems, batteries as supporting batteries are attracting more and more attention.
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