1. Different compositions
1. Solar Battery: This is the application of “battery” in solar photovoltaic power generation. Currently, maintenance-free lead-acid batteries are ordinary lead-acid batteries. Batteries and gel batteries are used. There are four types of nickel-cadmium alkaline batteries. Widely used solar batteries are mainly maintenance-free lead-acid batteries and gel batteries.
2. Lead-acid battery: The electrode is composed of lead and lead oxide, and the electrolyte is an aqueous solution of sulfuric acid.
2. Different advantages and disadvantages
1. Solar battery: It has the characteristics of “free” maintenance and less pollution to the environment.
2. Lead-acid batteries: The main advantages are stable voltage and low price; disadvantages are low specific energy (i.e.the amount of electricity stored per kilogram of battery), short life and frequent use. Daily maintenance. Ordinary old-fashioned batteries generally have a lifespan of about 2 years, and the electrolyte level should be checked regularly and distilled water added.
3. Different applications
1. Solar Battery: Used for reliable solar power systems, especially unattended workstations.
2. Lead Acid Batteries: Used in tractors, tricycles, car starters, etc. Maintenance-free lead-acid batteries have a wider range of applications, including uninterruptible power supplies, electric vehicle power supply, electric bicycles. batteries, etc. Lead-acid batteries are divided into constant current discharge (such as uninterrupted power supply) and instantaneous discharge (such as car starting batteryure) depending on the needs of the application.
Baidu Encyclopedia - Lead Acid Battery
Baidu Encyclopedia - Solar Battery
What type of battery does a solar street light need ? What is the energy storage effect?
The solar battery is a device that converts solar energy into electrical energy and stores it. It is an indispensable part of the solar power generation system. However, there are many types of solar batteries on the market. How to choose the right solar battery?
Consider the energy storage capacity
The energy storage capacity is an important parameter of solar batteries, which determines the energy storage capacity of the system solar energy production. Generally speaking, the larger the energy storage capacity, the more electricity can be stored, but the price will also increase accordingly. Therefore, when selectingFor solar batteries, the energy storage capacity must be determined based on actual needs and budget.
Consider the charging and discharging efficiency
Charging and discharging efficiency is another important parameter of solar batteries, which determines the energy loss of the solar energy production system. Generally speaking, the higher the charging and discharging efficiency, the lower the energy loss and the higher the power generation efficiency of the solar power generation system. Therefore, when choosing a solar battery, you should choose a product with higher charging and discharging efficiency.
Consider the lifespan
The lifespan of solar batteries is an important consideration. Generally speaking, the longer the lifespan of a solar battery, the lower the maintenance costs. Therefore, when choosing solar batteriesires, you should choose products with a longer lifespan.
Consider environmental adaptability
Solar batteries must be used outdoors, so environmental adaptability is also an important consideration. Generally speaking, solar batteries should be waterproof, dustproof and corrosion-proof to adapt to different environmental conditions. Therefore, when choosing solar batteries, you should choose products with good environmental adaptability.
Operation steps
1. Determine the actual needs and budget of the solar power generation system
2. Select the appropriate solar battery according to actual needs; and the budget;
3. When selecting solar batteries, factors such as energy storage capacity, charging and discharging efficiency, service life and environmental adaptability;
4. Install according to the selected solar battery and debugging.
Solar street lights typically use lithium batteries as energy storage devices. Lithium battery is a kind of battery with high energy density, long life and environmentally friendly. It is suitable for applications such as solar street lights that need to store energy for a long time.
The energy storage effect of lithium batteries is very good. Solar street lights convert solar energy into electrical energy via solar panels and then store the electrical energy in lithium batteries. Solar panels convert solar energy into electricity during the day and store excess electricity in lithium batteries. When night comes and the solar panels can no longer produce electricity, the lithium battery releases the electricitystored for use by solar street lights. This way, solar street lights can work normally at night without the need for external power.
The energy storage effect of lithium batteries is mainly reflected in the following aspects:
1. High energy density: Lithium batteries have high energy density and can store a large amount of electrical energy. . This allows solar street lights to continue working at night and provide sufficient power supply even in rainy weather for several consecutive days.
2. Long lifespan: Lithium batteries have a long lifespan and can generally be used for more than 3-5 years. This means that the energy storage equipment of solar street lights can be used for a long time, reducing the frequency and cost of battery replacement.
3. Environmental protection: The lithium battery is an environmentally friendly battery and does not contain harmful substances such as heavy metals. Compared with traditional lead-acid batteries, lithium batteries are more environmentally friendly and will not pollute the environment.
4. High charging and discharging efficiency: Lithium batteries have high charging and discharging efficiency, which can convert solar energy into electrical energy more efficiently and release stored electrical energy when needed. This allows solar street lights to use solar energy resources more efficiently.
In short, lithium batteries used in solar street lights are used as energy storage devices, and have the advantages of high energy density, long life, environmental protection and charging efficiencyand high discharge. These features enable solar street lights to work normally at night and provide sufficient power supply in continuous rainy weather for several days.