Battery technology it is also making continuous progress. As two mainstream battery technologies, Ni-MH battery and lithium battery are widely used in mobile phones, notebook computers, electric vehicles and other equipment. This article will discuss the characteristics, advantages and disadvantages of Ni-MH battery and lithium battery, and how to choose the battery type suitable for your own equipment.

1. NI-MH battery

• advantages:
  • Environmental protection: Ni-MH battery does not contain toxic heavy metals and is environmentally friendly.
  • High Safety: compared with lithium batteries, Ni-MH batteries have higher safety and are not prone to explosion accidents.
  • Long cycle life: Ni-MH batteries usually have longer cycle life than lithium batteries and better durability.
• Disadvantage:
  • Low energy density: under the same capacity, Ni-MH battery has lower energy density and larger volume.
  • High self-discharge rate: compared with lithium batteries, the high self-discharge rate of Ni-MH batteries will lead to the shortening of battery life.

2. Lithium battery

• advantages:
  • High energy density: lithium battery has high energy density and small volume, which is suitable for the demand of light and thin equipment.
  • High charge and discharge efficiency: lithium battery has high charge and discharge efficiency, which can provide more stable power output.
  • Low self-discharge rate: compared with Ni-MH battery, lithium battery has lower self-discharge rate and longer battery life.
• Disadvantage:
  • Poor safety: lithium batteries have potential safety hazards such as short circuit, overcharge and overdischarge, which are prone to explosion accidents.
  • Environmental problems: lithium batteries contain toxic substances, and there are environmental problems in handling and recycling.

3. How to Choose

• device type: for thin and light devices such as mobile phones and tablets, you can chooseLithium battery selection can provide lighter design and longer battery life; For electric vehicles, household appliances and other equipment with higher requirements on safety and cycle life, Ni-MH battery can be selected.
• Usage requirements: lithium battery is a better choice if you focus on battery life and charging efficiency; Nickel-hydrogen battery is more suitable if you focus on cycle life and environmental protection.
• Cost considerations: the production cost of lithium battery is relatively high, but the performance is better, while the cost of Ni-MH battery is lower and the durability is better.

4. Summary
   NI-MH battery and lithium battery have their own advantages and disadvantages. Choosing the battery type suitable for your own equipment should be considered comprehensively according to actual needs and usage scenarios. When selecting a battery, it is recommended to conduct a comprehensive evaluation according to the equipment type, usage requirements and cost considerations, and select the most suitable battery type to obtain a better use experience.