Mechanical Engineering Undergraduate Research Opportunities

Sodium Superionic Conductor as Solid Electrolyte for All-Solid-State Batteries

MentorsHui Wang
Research Lab/LocationEnergy Storage Lab, Conn Center
Description of ResearchIn the past 30 years, Li-ion batteries have gained great success in small portable electronics, like cellphones and laptops. Unfortunately, such batteries are limited by their relative low energy density when applied for large-scale energy storage such as electric vehicles (EVs) or grid. All-solid-state batteries, incorporating solid electrolytes to replace flammable organics, provide high energy density and intrinsic safety. They have become one of the most promising candidates for the new generation battery technology. A battery consists of three parts: the anode, the electrolyte and the cathode. The solid electrolyte plays dual roles: (1) to separate the electrodes (anode/cathode); (2) to transport ions between the anode and the cathode, therefore solid electrolyte plays critical role to determine a high performance all-solid state battery. Compared with Li-battery, all-solid-state Na battery attracts people much attention due to abundant source of Na and low price. Therefore, Na superionic conductor are of strong interests and important. Na3SbS4, a new reported Na superionic conductor, shows excellent ionic conductivity and air stability. These advantages make this material very attractive to achieve an all-solid-state Na battery operated at low temperature. However, as a new material, there is still undeveloped knowledge for its further application. This research project will help to explore deeper understanding for this material. Through this project, the undergraduate students will gain the experience and in depth knowledge of battery including testing and characterizations; hands on experience with electrical test equipment; data plotting and analysis; report writing skills and so on.
Innovative Batteries for Sustainabile Mobility
Minimum Student Qualifications
  • Minimum GPA of 3.2
Pay StatusUnpaid
Timeline & Hours per Week

1-3 months, materials synthesis and phase purification; 4-8 months, ionic conductivity measurement and optimization; 9-12 months, symmetric battery test.

Deadline of ProjectNot Specified
If you are interestedEmail or visit his office at Sacket 212