DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: High capacity Li/Ni rich Ni-Ti-Mo oxide cathode for Li-ion batteries

Journal Article · · Solid State Ionics
 [1];  [1];  [1];  [2];  [1];  [3];  [3];  [3];  [3];  [1]
  1. Rice Univ., Houston, TX (United States)
  2. Rice Univ., Houston, TX (United States); Univ. of Houston, TX (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)

With the rising cost and insufficient supply of cobalt, the thrust for cobalt-free cathode materials with the high specific capacity to build Li-ion batteries has increased significantly. Using nickel as the prime electrochemical active species, we have synthesized a new-class of materials with the combination of ordered and disordered phases. To obtain high capacity and electrical charge neutrality, stoichiometry of cations designed in a way that it forms Li/Ni rich Ni-Ti-Mo oxide materials. In addition to conventional capacity from redox activity of transition metals, partially reversible oxygen redox reaction also contributes to electrochemical activity and thus results in unusual high capacity. The resultant cathode materials of LiNi0.5Ti0.5O2-(Li4MoO5)0.8 and LiNiO2 mixture phases reach the specific capacity of 240 mAh/g. Detailed soft X-ray absorption spectroscopy and electron microscopy are used to reveal the crystal phases in this system and trace changes in the Ni2+/Ni4+ redox couple during charge-discharge processes. Finally, such comprehensive analysis of ordered-disordered oxides suggesting potentiality to develop high-capacity cobalt-free cathodes.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1608945
Journal Information:
Solid State Ionics, Journal Name: Solid State Ionics Journal Issue: C Vol. 345; ISSN 0167-2738
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (34)

Anionic Redox in Rechargeable Lithium Batteries journal June 2017
A High-Capacity O2-Type Li-Rich Cathode Material with a Single-Layer Li 2 MnO 3 Superstructure journal March 2018
Synthesis and Surface Modification of LiCo1/3Ni1/3Mn1/3O2 for Lithium Battery Applications journal January 2014
Chemometrics applied to unravel multicomponent processes and mixtures journal December 2003
A disordered rock-salt Li-excess cathode material with high capacity and substantial oxygen redox activity: Li 1.25 Nb 0.25 Mn 0.5 O 2 journal November 2015
Synthesis and electrochemistry of cubic rocksalt Li–Ni–Ti–O compounds in the phase diagram of LiNiO2–LiTiO2–Li[Li1/3Ti2/3]O2 journal October 2008
Attainable high capacity in Li-excess Li-Ni-Ru-O rock-salt cathode for lithium ion battery journal August 2017
The Li 3 Ru y Nb 1– y O 4 (0 ≤ y ≤ 1) System: Structural Diversity and Li Insertion and Extraction Capabilities journal May 2017
Decoupling Cationic–Anionic Redox Processes in a Model Li-Rich Cathode via Operando X-ray Absorption Spectroscopy journal November 2017
Direct Experimental Probe of the Ni(II)/Ni(III)/Ni(IV) Redox Evolution in LiNi 0.5 Mn 1.5 O 4 Electrodes journal November 2015
X-ray Photoemission Spectroscopy Study of Cationic and Anionic Redox Processes in High-Capacity Li-Ion Battery Layered-Oxide Electrodes journal January 2016
V IV Disproportionation Upon Sodium Extraction From Na 3 V 2 (PO 4 ) 2 F 3 Observed by Operando X-ray Absorption Spectroscopy and Solid-State NMR journal February 2017
Operando EPR for Simultaneous Monitoring of Anionic and Cationic Redox Processes in Li-Rich Metal Oxide Cathodes journal August 2017
Molecular Orbital Principles of Oxygen-Redox Battery Electrodes journal October 2017
Reversible Three-Electron Redox Reaction of Mo 3+ /Mo 6+ for Rechargeable Lithium Batteries journal March 2017
Facile Synthesis of The Li-Rich Layered Oxide Li 1.23 Ni 0.09 Co 0.12 Mn 0.56 O 2 with Superior Lithium Storage Performance and New Insights into Structural Transformation of the Layered Oxide Material during Charge–Discharge Cycle: In Situ XRD Characterization journal April 2014
Understanding the Roles of Anionic Redox and Oxygen Release during Electrochemical Cycling of Lithium-Rich Layered Li 4 FeSbO 6 journal April 2015
Anion Redox Chemistry in the Cobalt Free 3d Transition Metal Oxide Intercalation Electrode Li[Li 0.2 Ni 0.2 Mn 0.6 ]O 2 journal August 2016
Charge-compensation in 3d-transition-metal-oxide intercalation cathodes through the generation of localized electron holes on oxygen journal March 2016
The structural and chemical origin of the oxygen redox activity in layered and cation-disordered Li-excess cathode materials journal May 2016
Origin of stabilization and destabilization in solid-state redox reaction of oxide ions for lithium-ion batteries journal December 2016
Origin of voltage decay in high-capacity layered oxide electrodes journal December 2014
Mitigating oxygen loss to improve the cycling performance of high capacity cation-disordered cathode materials journal October 2017
Approaching the limits of cationic and anionic electrochemical activity with the Li-rich layered rocksalt Li3IrO4 journal December 2017
Spectroscopic characterization of the interaction of lithium with thin films of the ionic liquid 1-octyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide journal January 2014
A new class of high capacity cation-disordered oxides for rechargeable lithium batteries: Li–Ni–Ti–Mo oxides journal January 2015
The intriguing question of anionic redox in high-energy density cathodes for Li-ion batteries journal January 2016
Understanding the lithiation/delithiation mechanism of Si 1−x Ge x alloys journal January 2017
Probing the electrode/electrolyte interface in the lithium excess layered oxide Li1.2Ni0.2Mn0.6O2 journal January 2013
Li deinsertion mechanism and Jahn–Teller distortion in LiFe 0.75 Mn 0.25 PO 4 : an operando x-ray absorption spectroscopy investigation journal March 2017
Characterization of NiO by XPS journal July 1994
Characterization of LiNiO 2 by XPS journal July 1994
Unlocking the Potential of Cation-Disordered Oxides for Rechargeable Lithium Batteries journal January 2014
Optimized LiFePO[sub 4] for Lithium Battery Cathodes journal January 2001