Nickel-Zinc Batteries for Automotive Applications: FDK Advances Lead-Acid Alternative

FDK Corporation is advancing nickel-zinc batteries for automotive applications as part of its strategy to address the growing limitations of conventional lead-acid systems. As industries seek lighter, more flexible, and environmentally responsible energy storage solutions, the company is positioning Ni-Zn technology as a viable alternative across multiple mobility and industrial segments.

Shift Away from Lead-Acid Batteries

Lead-acid batteries continue to face operational and environmental challenges that restrict their suitability in modern applications. Their heavy weight, rigid installation requirements, and reliance on sulfuric acid increase handling risks and limit deployment flexibility. Repeated charge and discharge cycles also accelerate degradation, driving up replacement frequency and long-term operating costs. Nickel-zinc batteries for automotive applications address these drawbacks by offering a safer chemistry and improved durability. By eliminating sulfuric acid, the batteries significantly reduce corrosion risks and leakage concerns, enabling installation in a wider range of environments without extensive protective measures.

Technology Foundation Behind Ni-Zn Batteries

Combination of Proven Battery Technologies

Ni-Zn batteries are classified as alkaline secondary batteries that integrate multiple mature technologies. FDK applies cathode and structural expertise developed through nickel metal hydride batteries, while leveraging zinc anode technology refined in alkaline dry batteries. This combination allows stable performance while maintaining manufacturing reliability. A key characteristic of this battery chemistry is the absence of harmful heavy metals. The use of water-based electrolytes further enhances safety and aligns with tightening environmental regulations across automotive and industrial sectors.

Target Applications and Cost Advantages

FDK anticipates demand for nickel-zinc batteries for automotive applications extending beyond vehicles into industrial mobility and infrastructure. Expected use cases include:

• Automated guided vehicles operating in logistics centers

• Delivery robots supporting warehouse automation

• Emergency power systems in factories and distribution facilities

Compared with lead-acid battery alternatives, Ni-Zn batteries offer longer service life under repeated cycling conditions. This durability reduces replacement intervals, which directly lowers total ownership costs and minimizes operational disruptions for industrial users relying on continuous power availability. As electrification and automation accelerate, nickel-zinc batteries for automotive applications are positioned as a practical solution that balances safety, performance, and lifecycle efficiency without introducing complex installation constraints.