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Merck

Energy Materials

Metal elements in a periodic table

With the search for new solutions to energy efficiency and renewable energy problems, our materials are designed for development and manufacture. Whether you work on alternative fuels, solar energy, energy storage, or fuel cells, we offer products to support your advanced technologies that neither deplete natural resources nor harm the environment.



Six small piles of high-purity salts, each with a distinct color, neatly arranged in a row against a white background. From left to right, the salts and their corresponding chemical formulas are: 1) Magnesium Chloride (MgCl2): White salt, 2) Calcium Chloride (CaCl2): Pink salt, 3) Manganese(II) Chloride (MnCl2): Off-white salt, 4) Iron(III) Chloride (FeCl3): Orange-brown salt, 5) Nickel(II) Chloride (NiCl2): Green salt, 6) Copper(II) Chloride (CuCl2): Blue salt. Each chemical formula is written in black text below its corresponding pile of salt.

High-Purity Salts

We provide a broad spectrum of high-purity salts, both anhydrous and hydrated, ranging from 99.9% to 99.999% purity as measured by inductively coupled plasma mass spectrometry (ICP-MS) or inductively coupled plasma optical emission spectrometry (ICP-OES).

Battery Materials

With unrivaled purity and consistency, our battery materials provide excellent, reliable performance to help our customers achieve reproducible data, even during long cycling experiments. Our diverse selection of battery materials supports all your research needs, from bench-scale to pilot-scale and even manufacturing.

A collection of characteristic Sigma-Aldrich bottles inside the cutaway of a battery.

Explore More Categories

Vials of quantum dots ranging from blue to green to yellow and red to show the color emitted is size-dependent.
Quantum Dots

Light up your research with our comprehensive portfolio of core-type, core-shell, and alloyed quantum dots in various compositions, sizes, functionalizations, and kits. 

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High-Purity Metals & Alloys
High-Purity Metals & Alloys

We offer an extensive range of high-purity metals and alloys in diverse compositions and particles size, even customized for your research and production applications.  

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Oxides & Ceramics
Oxides & Ceramics

We offer an extensive range of high purity oxides and ceramics with specialized synthesis and purification techniques, and distinct particle sizes.

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Image of 2-dimensional chalcogenide glass held upright by gloved hand to display the coating.
Chalcogenides

Our 2D chalcogenide and dichalcogenide materials exhibit superior electronic, optical, and semiconducting properties for use in medical diagnostics, fiber optics and photovoltaic applications.

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Fuel Cell Membranes & Materials
Fuel Cell Membranes & Materials

We offer a wide selection of premium fuel cell materials for enhanced power density and...

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Solution deposition and vapor deposition are two synthesis routes used for formation of advanced, precision thin films and coatings.
Solution & Vapor Deposition Precursors

Our high-quality solution deposition and vapor deposition precursors are optimal for...

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A thin, blue solar cell is held up by hand to sunlight.
Solar Energy Materials

We offer powerful and stable solar energy materials, perovskites, quantum dots, and lead-free alternatives to increase the power conversion efficiency of your renewable energy applications. 

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