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Non-crosslinked, amorphous, block copolymer electrolyte for batteries

Patent ·
OSTI ID:1175696
Solid battery components are provided. A block copolymeric electrolyte is non-crosslinked and non-glassy through the entire range of typical battery service temperatures, that is, through the entire range of at least from about 0.degree. C. to about 70.degree. C. The chains of which the copolymer is made each include at least one ionically-conductive block and at least one second block immiscible with the ionically-conductive block. The chains form an amorphous association and are arranged in an ordered nanostructure including a continuous matrix of amorphous ionically-conductive domains and amorphous second domains that are immiscible with the ionically-conductive domains. A compound is provided that has a formula of Li.sub.xM.sub.yN.sub.zO.sub.2. M and N are each metal atoms or a main group elements, and x, y and z are each numbers from about 0 to about 1. y and z are chosen such that a formal charge on the M.sub.yN.sub.z portion of the compound is (4-x). In certain embodiments, these compounds are used in the cathodes of rechargeable batteries. The present invention also includes methods of predicting the potential utility of metal dichalgogenide compounds for use in lithium intercalation compounds. It also provides methods for processing lithium intercalation oxides with the structure and compositional homogeneity necessary to realize the increased formation energies of said compounds. An article is made of a dimensionally-stable, interpenetrating microstructure of a first phase including a first component and a second phase, immiscible with the first phase, including a second component. The first and second phases define interphase boundaries between them, and at least one particle is positioned between a first phase and a second phase at an interphase boundary. When the first and second phases are electronically-conductive and ionically-conductive polymers, respectively, and the particles are ion host particles, the arrangement is an electrode of a battery.
Research Organization:
Massachusetts Institute of Technology, Cambridge, MA (United States)
Sponsoring Organization:
USDOE
Assignee:
Massachusetts Institute of Technology (Cambridge, MA)
Patent Number(s):
7,026,071
Application Number:
09/862,916
OSTI ID:
1175696
Country of Publication:
United States
Language:
English

References (46)

ABA triblock comb copolymers with oligo(oxyethylene) side chains as matrix for ion transport journal May 1989
Mixed (electronic and ionic) conductive solid polymer matrix, 1. Synthesis and properties of poly(2,5,8,11,14,17,20,23‐octaoxapentacosyl methacrylate)‐block‐poly(4‐vinylpyridine) journal November 1991
Synthesis of block copolymers based on oxyethylene chains and their use as polymer electrolytes journal January 1990
High ionic conductivity in poly(dimethyl siloxane-co-ethylene oxide) dissolving lithium perchlorate journal December 1984
Synthesis and characterization of styrene/isoprene/ethylene oxide block copolymers journal February 1985
New solid polymer electrolytes prepared from styrene–butadiene copolymer latices journal February 1993
Synthesis and characterization of anionic graft copolymers containing poly(ethylene oxide) grafts journal February 1995
Electronic Structure in Relation to the Reactivity of Nonstoichiometric AxMX2 Layered Compounds journal June 1991
Synthesis and colloidal behaviour of a polystyrene-b-poly(ethylene oxide) block copolymer journal January 1987
Use of crown ether in the anionic polymerization of propylene oxide—3. Preparation and micellization of diblock-copoly(oxypropylene/oxyethylene) journal January 1991
Synthesis of poly(ethylene oxide-diene-ethylene oxide) triblock copolymers. Characterization and use as solid polymer electrolytes journal January 1991
A reinvestigation of the structures of lithium-cobalt-oxides with neutron-diffraction data journal November 1993
Synthesis and characterization of polystyrene-poly(ethylene oxide) graft copolymers journal December 1977
Synthesis and characterization of ABA block copolymer-based polymer electrolytes journal October 1987
Filler effects on the compatibility and phase separation kinetics of poly(vinyl acetate)-poly(methyl methacrylate) mixtures journal January 1992
The preparation and characterisation of polystyrene/poly/ethylene oxide) AB block copolymers journal January 1984
Conductivity measurements on amorphous PEO copolymers journal September 1988
Ionic conductivity in poly (ethylene oxide)- poly (alkylmethacrylate)-block copolymer mixtures with LiI journal November 1992
Lithium intercalation in Li_Mg_Mn_O and Li_Al_Mn_O spinels journal August 1996
A new variety of LiMnO2 with a layered structure journal August 1996
Block copolymers of poly(ethylene oxide) materials for polymer electrolytes (transport properties) journal April 1993
Computer simulation of spinodal decomposition in ternary systems journal October 1994
Surface treatments of Li1+xMn2−xO4 spinels for improved elevated temperature performance journal December 1997
Dispersion Morphology Diagrams for Three-Phase, "Microemulsion" Emulsions. 2. "Disappearance" of Morphology-Transition Lines journal November 1994
Electrical Conductivities of Three-Phase Emulsions. 1. Strongly Wetting Middle Phase journal August 1994
Electrical Conductivities of Three-Phase Emulsions. 2. C6H13(OC2H4)2OH/n-Tetradecane/Water with Wetting and Nonwetting Middle Phases journal August 1994
Structure and phase behavior in four-component nonionic microemulsions journal August 1991
Structure and phase behavior in five-component microemulsions journal March 1990
Rheology of the Lower Critical Ordering Transition journal July 1995
Block copolymers near the microphase separation transition. 2. Linear dynamic mechanical properties journal December 1984
Morphology and ionic conductivity of polymer complexes formed by segmented polyether poly(urethane urea) and lithium perchlorate journal October 1985
Novel polymer electrolytes based on ABA block copolymers journal March 1988
Rheology of ordered and disordered symmetric poly(ethylenepropylene)-poly(ethylethylene) diblock copolymers journal April 1990
The order-disorder transition in binary mixtures of nearly symmetric diblock copolymers journal September 1990
Theory of Microphase Separation in Block Copolymers journal November 1980
Synthesis of layered LiMnO2 as an electrode for rechargeable lithium batteries journal June 1996
Efficient, fast response light‐emitting electrochemical cells: Electroluminescent and solid electrolyte polymers with interpenetrating network morphology journal June 1996
Microphase separation in multiblock copolymer melts journal December 1989
WAXS studies on crystalline behavior of polymethyl methacrylate-polyethylene oxide graft copolymers and their ionic complexes journal September 1991
Electronic structure and electron-phonon interactions in layered Li x NbO 2 and Na x NbO 2 journal June 1994
Lithium Intercalation into Layered LiMnO[sub 2] journal January 1997
Synthesis and Characterization of LiAl[sub 1∕4]Ni[sub 3∕4]O[sub 2] (R3m) for Lithium-Ion (Shuttlecock) Batteries journal January 1995
Orthorhombic LiMnO[sub 2] as a High Capacity Cathode for Li-Ion Cells journal January 1995
Ionic Conductivity of Dual-Phase Polymer Electrolytes Comprised of NBR/SBR Latex Films Swollen with Lithium Salt Solutions journal January 1994
In Situ Formation of Polypyrrole /  PEO  ‐ LiCF 3  SO  3 Composites by Pulsed Potentiostatic Electropolymerization journal January 1989
Synthesis, Characterization, and Electrochemical Performances of Substituted Layered Transition Metal Oxides. LiM 1-y M' y O 2 . (M=Ni and Co. M'= B and AI) journal January 1996

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