A novel electrode current collector design that can improve performance and extend cycle life for rechargeable batteries based on metal electrodeposition is disclosed. The novel electrode current collector has a reduced effective surface area that can help to balance efficiencies between battery electrodes and to ensure non-uniform electrodeposition of metal onto the anode current collector during charge. One result is mitigation of internal short circuits that can cause a battery to fail prematurely.
STATEMENT OF GOVERNMENT SUPPORT
 The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy National Energy Technology Laboratory under Contract No. DE-EE0004224 and by the New York State Energy Research and Development Authority under Contract No. 18786. The Government has certain rights in this invention.