Board of Governors for Higher Education, State of Rhode Island and Providence Plantations

Basf Se Corporation

Rhode Island Board of Education, State of Rhode Island and Providence Plantations

University of Rhode Island

Rhode Island Council on Postsecondary Education

Rhode Island Board of Education, State of Rhode Island and Provide Plantations

Brett L Lucht

William B Euler

Yu Wang

Michael Schmidt

Arnd Garsuch

Julien Demeaux

Otto J Gregory

Itamar Michael Malkowsky

Frederick Francois Chesneau

Yingnan Dong

Stefano Meini

Nadia Archambault

Michael Rohde

Bo Zhang

Usha Kiran Tottempudi

Ang Xiao

Li Yang

Mengqing Xu

Dongsheng Lu

Liu Zhou

An electrolyte composition including (i) at least one aprotic organic solvent; (ii) at least one conducting salt; (iii) at least one pyridine-SOcomplex of formula (I) wherein R is selected independently at each occurrence from F, Cto Calkyl, Cto Calkenyl, and Cto Calkynyl, wherein alkyl, alkenyl, and alkynyl may be substituted by one or more substituents selected from F and CN; and n is an integer selected from 1, 2, 3, 4, and 5; and (vi) optionally one or more additives; and its use in electrochemical cells.

Pyridine sulfur trioxide complexes as electrolyte component for high voltage batteries

An electrolyte composition (A) containing at least one aprotic organic solvent and at least one compound of formula (I) wherein Ais selected from Li, Na, K, Cs, and ammonium; is a bidentate radical derived from a (hetero)aromatic 1,2-, 1,3- or 1,4-diol, from a (hetero)aromatic 1,2-, 1,3- or 1,4-dicarboxylic acid or from a (hetero)aromatic 1,2-, 1,3- or 1,4-hydroxycarboxylic acid by abstracting the two H atoms of pairs of adjacent OH groups; and Rand Rare organic substituents. 

Non-aqueous electrolytes for lithium-ion batteries comprising asymmetric borates

A non-aqueous electrolyte usable in rechargeable lithium-ion batteries including a solution of LiPF/carbonate based electrolytes with low concentrations of LiFOP such that the thermal stability is increased compared to a standard lithium battery. A method of making lithium tetrafluorophospahte (LiFCO, LiFOP) including, reacting PFwith lithium oxalate, recrystallizing DMC/dichloromethane from a 1:1 mixture of to separate LiFOP from LiPFto form a lithium salt. An electric current producing rechargeable Li-ion cell. The rechargeable lithium ion cell includes an anode, a cathode, and a non-aqueous electrolyte comprising a solution of a lithium salt in a non-aqueous organic solvent containing lithium tetrafluorooxalatophosphate (LiPF(CO), LiFOP).

Electrolyte for lithium ion batteries

A thermal indicator material which comprises a plurality of polythiophenes having a second low temperature color and a high temperature color. The polythiophenes are structured and arranged to exhibit a color change from the second low temperature color to the high temperature color when the thermal indicator material is exposed to a temperature that meets or exceeds a pre-determined temperature and to exhibit a color change from the high temperature color to a first low temperature color when the thermal indicator material is exposed to a decline in temperature from a temperature that meets or exceeds the predetermined temperature to a temperature of within the range of between about 5 to 20&#xb0; C. below the pre-determined temperature that occurs in a time period of greater than 2.0 seconds.

Thermochromic indicator materials with controlled reversibility

The invention is directed to use of polythiophenes in a method to determine the genuineness of an article which method comprises providing an article treated with a composition comprised of a polythiophene, the polythiophene having a low temperature color and a weak fluorescence and the structure of the polythiophene being designed such that when the composition is placed in a heat-exchange relationship with the article, the low temperature color will change to a high temperature color and the weak fluorescence will change to a strong fluorescence when a pre-determined temperature is met or exceeded in the article, heating the article to a temperature that meets or exceeds the pre-determined temperature and detecting the color and the fluorescence change.

Thermofluorescent pigments for security and safety applications

A thermochromic polymer-based temperature indicator composition which comprises a polythiophene and a carrier medium. The composition is characterized in that the polythiophene is present in the medium in an amount of about 0.05 to about 5.0% by weight based on the total weight of the composition. The structure of the compound is designed such that when the composition is placed in a heat-exchange relationship with an article, the composition will exhibit a color change when a design temperature or a temperature beyond the design temperature is reached in the article.

Thermochromic polymers for rapid visual assessment of temperature

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Wakefield, RI, United States of America

Brett L Lucht