Analysis of the advantages and disadvantages of different types of batteries

1. Important advantages of energy storage lead-acid batteries: 1. Easy to obtain raw materials and relatively low price; 2. Good high-rate discharge performance; 3. Good temperature performance, and can work in an environment of -40~+60°C; 4. Suitable It is used for floating charging, with long service life and no memory effect; 5. The used batteries are easy to recycle, which is beneficial to protect the environment. Major shortcomings: 1. Low specific energy, generally 30~40Wh/kg; 2. The service life is not as good as Cd/Ni batteries; 3. The manufacturing process is easy to pollute the environment, and it is necessary to equip with three wastes solving equipment. 2. Important advantages of lithium battery: 1. High specific energy; 2. High voltage platform; 3. Good cycle performance; 4. No memory effect; 5. Environmental protection and pollution-free; It is currently the best potential electric vehicle power lithium ion battery one. 3. Lithium-sulfur battery (lithium-sulfur battery is a kind of high-capacity energy storage system with great development prospects) advantages: 1. High energy density, theoretical energy density can reach 2600Wh/kg; 2. Low raw material cost; 3. Energy consumption Less; 4. Low toxicity. Fourth, the important advantages of super capacitors: 1. High power density; 2. Short charging time. Major shortcomings: low energy density, only 1-10Wh/kg, supercapacitors have a short cruising range, and cannot be used as the mainstream power supply for electric vehicles. V. Important advantages of Ni-MH batteries: 1. Compared with lead-acid batteries, the energy density is greatly improved, the weight energy density is 65Wh/kg, and the volume energy density is increased by 200Wh/L; 2. The power density is high, and the current can be large. Charge and discharge; 3. Good low-temperature discharge characteristics; 4. Cycle life (increased to 1000 times); 5. Environmentally friendly and pollution-free; 6. Technology is more mature than lithium batteries. Major shortcomings: 1. The normal working temperature range is -15~40℃, and the high temperature performance is poor; 2. The working voltage is low, and the working voltage range is 1.0~1.4V; 3. The price is more expensive than lead-acid batteries and nickel-hydrogen batteries, but the performance is better. Poor lithium battery. Sixth, the key advantages of fuel power batteries: 1. High specific energy, long vehicle mileage; 2. High power density, high current charge and discharge; 3. Environmental protection, no pollution. Major shortcomings: 1. Complex system and poor technology maturity; 2. The construction of hydrogen supply system is lagging behind; 3. There are high requirements for sulfur dioxide in the air. Due to serious domestic air pollution, fuel-powered battery vehicles in the country have a short lifespan. 7. Advantages of sodium-sulfur battery: 1. High specific energy (theoretical 760wh/kg; actual 390wh/kg); 2. High power (discharge current density can reach 200~300mA/cm2); 3. Fast charging speed (overflowing 30min) 4. Long life (15 years; or 2500~4500 times); 5. No pollution, recyclable (Na, S recovery rate is nearly 100%); 6. No self-discharge phenomenon, high energy conversion rate; Insufficiency: 1. The working temperature is high, and its working temperature is between 300 and 350 degrees. When the battery is working, it must be heated to a certain extent, and the start-up is slow; 2. The price is expensive, 10,000 yuan per degree; 3. The safety is poor. 8. Advantages of flow battery (vanadium battery): 1. Safety and deep discharge; 2. Large scale, unlimited storage tank size; 3. Large charge and discharge rate; 4. Long life and high reliability; 5. , No emissions, low noise; 6. Fast charge and discharge switching, only 0.02 seconds; 7. Site selection is not restricted by region. Disadvantages: 1. The positive and negative electrolytes are intertwined and polluted; 2. Some use expensive ion exchange membranes; 3. The two solutions are large in volume and low in specific energy; 4. The energy conversion efficiency is not high. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.