Premium
Dual‐Function Air Cathode for Metal–Air Batteries with Pulse‐Power Capability
Author(s) -
Long Jeffrey W.,
Chervin Christopher N.,
Kucko Nathan W.,
Nelson Eric S.,
Rolison Debra R.
Publication year - 2013
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201200921
Subject(s) - pseudocapacitance , materials science , cathode , oxide , power (physics) , electrode , computer science , electrical engineering , nanotechnology , capacitance , supercapacitor , metallurgy , engineering , chemistry , physics , quantum mechanics
Air‐breathing electrodes comprising carbon nanofoam papers coated with nanoscale manganese oxide (MnO x ) exhibit two distinct functionalities – electrocatalysed oxygen reduction plus faradaic pseudocapacitance. Pseudocapacitance provides seconds‐long discharge pulses at current densities that exceed oxygen reduction alone, even providing pulse power for one anaerobic cycle. The MnO x spontaneously recharges between pulses via reaction with oxygen while operating as an air cathode.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom