Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
a) Schematic diagram showing fabrication of the cable battery. b) Schematic illustration of the cable battery with hollow‐helix anode having multiple‐helix structure. Reproduced with permission.117 Copyright 2012, Wiley‐VCH. c) Aspects in battery layout and design. Reproduced with permission.51 Copyright 2013, Springer Nature.
