Nikkel-metal hidrit (NiMH) is a type of rechargeable battery technology that uses a nickel oxide hydroxide positive electrode and a hydrogen-absorbing alloy negative electrode. It is known for its ability to store a significant amount of energy and is commonly used in various applications, including portable electronics and electric vehicles. One of the key advantages of NiMH batteries is their higher energy density compared to traditional nickel-cadmium (NiCd) batteries, allowing for longer usage times. Additionally, they are less harmful to the environment since they do not contain toxic cadmium. However, they can be sensitive to overcharging and require proper management to ensure longevity.