Advantages: 1. Long lifespan, 2. Low price, 3. Can discharge with high current Disadvantages: 1. Lead pollution, 2. Low energy density, which is the advantage and disadvantage of lithium-ion batteries and lead-acid batteries for bulky electric vehicles. 1. The cycle life of ultra long life lead-acid batteries is about 200 times, with a maximum of 300 times.
And the cycle life of lithium-ion batteries can reach over 300 times, with standard charging (5-hour rate) usage, up to 500 times, or even more than 1000 times.
Lead acid batteries can last up to 1-1.5 years, while lithium-ion batteries can last up to 3 years under the same conditions.
2、 Safe to use and with good performance, lithium-ion batteries completely solve the safety hazards of lead-acid batteries.
Lead acid batteries can explode under strong collisions, posing a threat to consumer safety.
And lithium-ion batteries do not produce explosions after strict safety testing.
2、 The memory effect is a phenomenon in which a non memory effect charging pool operates under conditions where it is often fully charged but not fully discharged, and its capacity quickly drops below the rated capacity value.
However, lithium-ion batteries do not have this phenomenon. Regardless of the state of the battery, it can be charged and used at any time without the need to discharge it before charging.
4、 Small in size, light in weight, and long-lasting, lithium-ion batteries with the same specifications and capacity have a volume of 2/3 of lead-acid batteries and a weight of 1/3 of lead-acid batteries. Fifth, electric vehicles with expensive lithium-ion batteries are twice as expensive as those with lead-acid batteries.
6、 In electric vehicles with green and environmentally friendly lead-acid batteries, lead-acid batteries contain a large amount of lead, which, if not properly disposed of after disposal, will pollute the environment. Lithium materials, which have no toxic or harmful substances, are considered green and environmentally friendly batteries by the world. This battery is pollution-free in both production and use, and has become a hot research topic.
In addition to lithium batteries, lead-acid batteries are also a very important battery system in commonly used rechargeable batteries.
The advantage of lead-acid batteries is that their electromotive force is relatively stable during discharge, but the disadvantage is that their specific energy (stored energy per unit weight) is small and they are highly corrosive to the environment.
Lead acid batteries have a stable working voltage, a wide range of operating temperatures and currents, the ability to charge and discharge hundreds of cycles, good storage performance (especially suitable for dry charge storage), and low cost, making them widely used.
Lead acid battery: Its volume and weight have not been effectively improved, so it is currently most commonly used in car and motorcycle engines.
The biggest improvement of lead-acid batteries is the recent use of high-efficiency oxygen recombination technology to complete water regeneration, achieving the goal of complete sealing without the need for water. The “water free battery” made from it can have a lifespan of up to 4 years (single electrode voltage 2V).
Lead acid batteries have a history of over 150 years since their invention by Plant in 1859, and their technology is very mature, making them the most widely used chemical power source in the world.
Although new types of batteries such as nickel cadmium batteries, nickel hydrogen batteries, and lithium-ion batteries have emerged and been applied in recent years, lead-acid batteries still have a series of advantages, such as strong high current discharge performance, stable voltage characteristics, wide temperature applicability, large single battery capacity, high safety, abundant and renewable raw materials, and low prices, in the vast majority of traditional and emerging application fields, Occupying a firm position.
（1） Classification and application fields of power batteries: Power batteries refer to the power sources that provide power for transportation vehicles, generally referring to batteries that provide power for electric two wheeled vehicles, electric three wheeled vehicles, micro electric vehicles, and new energy vehicles. According to the different raw materials, power batteries are mainly divided into traditional lead-acid batteries, lithium-ion batteries, and fuel cells in the application market. (1) Lead acid power batteries are currently the most widely used power batteries, mainly used in the fields of electric two wheeled vehicles, electric three wheeled vehicles, and micro electric vehicles. According to statistics, over 98% of electric two wheeled vehicles that have already been produced use lead-acid batteries. This is mainly due to its many advantages: long development history, mature technology, high specific power, and low cost. From the proportion of various uses of lead-acid power batteries, lead-acid power batteries are mainly used in the fields of electric two wheeled vehicles, electric three wheeled vehicles, and electric vehicles. (2) Lithium ion power batteries are mainly used in the field of new energy vehicles, with the main varieties being the early and mature lithium iron phosphate and emerging ternary lithium batteries. Safety issues have become one of the reasons restricting their development. (4) Fuel cell is a power generation device that directly converts chemical energy from fuel and oxidants into electrical energy. Fuel cells have a wide range of applications, including regional power supply for aerospace, space stations, power stations, on-site ready to use energy systems, electric vehicles, and mobile power sources. Hope to adopt it
Based on the current usage situation, lead-acid power batteries are less commonly used in national standard electric vehicles and more commonly used in ordinary electric vehicles and non-standard micro electric vehicles, which means that the requirements for battery power output characteristics are not very high, and the equipment is cost-effective.
