Faculty Advisor

Wang, Yan

Abstract

Emerging battery applications (i.e. electric vehicles) demand increasingly higher energy density, lower cost, longer cycle life, and higher safety—all of which cannot be simultaneously met by current lithium ion battery technology. The cathode, specifically, is often identified as the limiting component for energy density and cost. LiNi0.8Mn0.1Co0.1O2 (NMC811) is a promising candidate for this space, offering an energy density over 20% higher than commercial cathode materials. However, its high nickel content also poses technical issues including cracking, low thermal stability, cation mixing, and parasitic reactions. In this project, an integrative approach including doping and coating was adopted to solve the above issues of NMC811.

Publisher

Worcester Polytechnic Institute

Date Accepted

April 2018

Major

Mechanical Engineering

Project Type

Major Qualifying Project

Accessibility

Unrestricted

Advisor Department

Mechanical Engineering

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