Iron-nickel (Fe-Ni) batteries, also known as Edison batteries (after their inventor Thomas Edison), are a type of rechargeable battery that have been in use for over a century. Despite being overshadowed by newer technologies like lithium-ion, they still offer several unique advantages.
Key Features:
- Robustness: Fe-Ni batteries are highly durable and can withstand overcharging, deep discharging, and mechanical stress.
- Long Lifespan: With proper maintenance, these batteries can last 20–30 years, far longer than lead-acid or lithium-ion batteries.
- Temperature Resistance: They perform well in extreme temperatures, making them suitable for harsh environments.
- Eco-Friendly: Unlike lead-acid or lithium batteries, Fe-Ni batteries contain non-toxic materials, making them easier to recycle.
Though they have lower energy density compared to modern alternatives, their reliability keeps them relevant in specific applications.
