High-performance LiNi0.5Mn1.5O4 spinel controlled by Mn3+ concentration and site disorder.
basic_science · Level V
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- Record sourced from PubMed, PMID 22431364.
- Also identified by DOI 10.1002/adma.201104767.
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Abstract
The complex correlation between Mn(3+) ions and the disordered phase in the lattice structure of high voltage spinel, and its effect on the charge transport properties, are revealed through a combination of experimental study and computer simulations. Superior cycling stability is achieved in LiNi(0.45)Cr(0.05)Mn(1.5)O(4) with carefully controlled Mn(3+) concentration. At 250th cycle, capacity retention is 99.6% along with excellent rate capabilities.
Medical subject headings
- Electric Power Supplies
- Manganese Compounds
- Nickel