Nickel -hydride batteries do not contain toxic substances. The main ingredients are nickel and rare earth. The recovery value is high (with residual value). The difficulty of recycling is less difficult. Basically, it can be recovered and reused.

　　Compared with lead -acid batteries, nickel -hydride batteries have a large energy density ratio, which means that the use of nickel -metal hydride batteries can effectively extend the vehicle driving time without adding additional weight to new energy vehicles. Secondly, the discharge characteristics of nickel -metal hydride batteries are stable, the discharge curve is very smooth, and the heat is small. This is the advantage of nickel -metal hydride batteries. It is also the basis for new energy vehicles to use its battery. His disadvantage is that the energy density is relatively low, that is, the same power weight is slightly heavier, but this is acceptable in hybrid vehicles.

　　At present, the battery technology is still the core bottleneck of pure electric vehicles. The stability of the lithium battery is insufficient. Many batteries have dropped rapidly after a period of use. The battery needs to be replaced, and the price of the battery itself is very high. At the same time, the safety of batteries is also very concerned about consumers. The fire and explosion of pure electric vehicle batteries have repeatedly occurred, which has greatly reduced consumers' safety.

　　Although nickel -hydride batteries are heavier than lithium -ion batteries in weight, some pure battery power vehicles still use hydrogen inlaid batteries, such as:

　　GM Honda Civic Hybrid, Honda Evplus in Honda, and Ford Ranger EV's Ford Ranger EV on the life of the nickel -metalized battery pack used by hybrid vehicles is the most difficult to answer among many questions. Below we use a large number of users to use it, and use time to prove the most convincing. The US "Consumer Report" followed the survey of more than 36,000 Prius owners. The conclusion that the feedback was that it was very reliable and the cost of use was very low. The "Consumer Report" uses the first generation Prius, which has traveled 330,000 kilometers for 10 years and the first generation Prius new car driving 3,200 kilometers ago for the same standard test comparison. Among them, the fuel consumption test uses the Consumer Report itself to formulate itself The test cycle, the performance testing link comprehensively tests accelerated performance in various cases. The test results show that the use of old cars and new cars that have been driving 330,000 kilometers in 10 years remain at the same level in both fuel consumption performance and power performance, indicating that the nickel -metalized battery pack and hybrid system are still working normally. It is worth mentioning that even if the first generation of Prius with 10 years of 330,000 kilometers, the nickel -hydride battery pack has never been replaced. People questioned that the electricity volume attenuation will significantly affect fuel consumption and power performance.

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