POLYMER ION CASE FOR SUPPRESSING OR MINIMIZING TRANSITION METAL IONS AND DENDRITING OR GROWTH IN LITHIUM ION BATTERIES

摘要

Electrochemical cells that cyclize lithium ions and methods of suppressing or minimizing dendrite formation are envisioned. The electrochemical cells include a positive electrode, a negative electrode, and a separator disposed therebetween. At least one transition metal ion capture unit, including one or more polymers functionalized with one or more capture groups, can be incorporated within the electrochemical cell as a coating, pore filler, replacement side group, or binder. The one or more capture groups may be selected from the group consisting of: crown ethers, siderophores, bactins, ortho-phenanthroline, iminodiacetic acid dilithium salt, oxalates malonates, fumarates, succinates, itaconates, phosphonates, and combinations thereof, and may bind to metal ions which are found in the electrochemical cell to minimize or suppress the formation of dendrite protrusions on the negative electrode.