There are mainly the following types of batteries:
I. Chemical batteries
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Lead-acid battery:
- Advantages: Cheap price, high reliability, and recyclable. Commonly used in car starter power supplies, electric bicycles, etc.
- Disadvantages: Low energy density, large volume, heavy weight, and contains heavy metal lead, which causes certain pollution to the environment.
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Nickel-cadmium battery:
- Advantages: Good high-current discharge performance and strong resistance to overcharge and overdischarge. Used in early mobile phones, cordless phones, etc.
- Disadvantages: Cadmium is toxic and harmful to the environment. It has a memory effect.
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Nickel-metal hydride battery:
- Advantages: Environmentally friendly, no heavy metal pollution, relatively high energy density, and long cycle life. Suitable for digital cameras, power tools, etc.
- Disadvantages: Relatively high self-discharge rate.
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Lithium-ion battery:
- Advantages: High energy density, long cycle life, and low self-discharge rate. Widely used in smartphones, laptops, electric vehicles, etc.
- Classification: Different types such as lithium cobalt oxide, lithium manganese oxide, and lithium iron phosphate each have their own characteristics.
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Lithium polymer battery:
- Advantages: Can be made into various shapes, thinner and lighter, and relatively high in safety. Commonly found in high-end electronic products.
- Disadvantages: Higher cost.
II. Physical batteries
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Solar cell:
- Utilizes the photoelectric effect of semiconductor materials to convert solar energy into electrical energy. Clean and renewable, used in aerospace, field monitoring, distributed power generation, etc.
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Flywheel battery:
- Utilizes a high-speed rotating flywheel to store energy. High power density, long service life, and fast charge and discharge speed. Used in uninterruptible power supplies, hybrid electric vehicles, etc.
III. Biological batteries
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Microbial battery:
- Utilizes the metabolic action of microorganisms to convert chemical energy into electrical energy. Environmentally friendly and sustainable. Still in the research and development stage and is expected to be used in environmental monitoring, biomedicine and other fields.