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Title: Monovalent manganese based anodes and co-solvent electrolyte for stable low-cost high-rate sodium-ion batteries

Journal Article · · Nature Communications
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  1. Alveo Energy, Palo Alto, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  3. New York Univ., New York, NY (United States). Dept. of Physics

The demand of sustainable power supply requires high-performance cost-effective energy storage technologies. Here in this paperwe report a high-rate long-life low-cost sodium-ion battery full-cell system by innovating both the anode and the electrolyte. The redox couple of manganese(I/II) in Prussian blue analogs enables a high-rate and stable anode. Soft X-ray absorption spectroscopy and resonant inelastic X-ray scattering provide direct evidence suggesting the existence of monovalent manganese in the charged anode. There is a strong hybridization between cyano ligands and manganese-3d states, which benefits the electronic property for improving rate performance. Additionally, we employ an organic-aqueous cosolvent electrolyte to solve the long-standing solubility issue of Prussian blue analogs. A full-cell sodium-ion battery with low-cost Prussian blue analogs in both electrodes and co-solvent electrolyte retains 95% of its initial discharge capacity after 1000 cycles at 1C and 9 5% depth of discharge. The revealed manganese(I/II) redox couple inspires conceptual innovations of batteries based on atypical oxidation states.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC02-05CH11231; AR00000300; DMR-1420073
OSTI ID:
1433131
Journal Information:
Nature Communications, Vol. 9, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 77 works
Citation information provided by
Web of Science

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Cited By (11)

Prussian White Hierarchical Nanotubes with Surface‐Controlled Charge Storage for Sodium‐Ion Batteries journal February 2019
Few‐Layer Bismuthene with Anisotropic Expansion for High‐Areal‐Capacity Sodium‐Ion Batteries journal January 2019
Electrolytes and Electrolyte/Electrode Interfaces in Sodium‐Ion Batteries: From Scientific Research to Practical Application journal March 2019
Understanding Challenges of Cathode Materials for Sodium‐Ion Batteries using Synchrotron‐Based X‐Ray Absorption Spectroscopy journal July 2019
Recent research progresses in ether‐ and ester‐based electrolytes for sodium‐ion batteries journal July 2019
Ball-milling synthesis of ultrafine NayFexMn1-x[Fe(CN)6] as high-performance cathode in sodium-ion batteries journal December 2019
Ni 1.5 CoSe 5 nanocubes embedded in 3D dual N-doped carbon network as advanced anode material in sodium-ion full cells with superior low-temperature and high-power properties journal January 2018
A room temperature multivalent rechargeable iron ion battery with an ether based electrolyte: a new type of post-lithium ion battery journal January 2019
X-ray spectroscopy with variable line spacing based on reflection zone plate optics journal January 2018
Fingerprint Oxygen Redox Reactions in Batteries through High-Efficiency Mapping of Resonant Inelastic X-ray Scattering journal January 2019
X-ray spectroscopy with variable line spacing based on reflection zone plate optics text January 2018