Cobalt(II) hydroxide is widely utilized in research focused on:

• Batteries: It serves as a key component in rechargeable batteries, particularly lithium-ion batteries, enhancing energy density and cycle stability.
• Catalysis: This compound is used as a catalyst in various chemical reactions, including the production of biodiesel, where it helps improve reaction rates and yields.
• Pigments: In the paint and coatings industry, cobalt(II) hydroxide is valued for its vibrant blue color, providing excellent stability and durability in pigments.
• Electroplating: It is employed in electroplating processes to create corrosion-resistant coatings on metals, enhancing their longevity and performance in harsh environments.
• Research and Development: In laboratories, it is used in the synthesis of other cobalt compounds and as a reagent in various analytical techniques, supporting advancements in materials science.