Abstract: Controlled height carbon nanotube arrays including catalysts and synthesis methods relating thereto are disclosed. Such nanotube arrays can be prepared from catalyst particles having an Fe:Co:Ni molar ratio impregnated in an exfoliated layered mineral to grow carbon nanotube arrays where the Fe:Co:Ni molar ratio of the catalyst is used to control the height of the array.

Abstract: The invention relates to the technical field of lithium battery slurry materials, in particular to a conductive carbon material dispersing agent which comprises one of modified polyvinyl alcohol, alkyl ammonium salt copolymer, olefin block maleic anhydride copolymer and pyrrolidone copolymer, or mixtures thereof, and can effectively disperse carbon nanotube, graphene and other conductive carbon materials in a solvent to obtain uniform conductive slurry; further disclosed is a high-conductivity slurry for the lithium battery, which comprises 0.5-15.0% by weight of a conductive carbon material and 0.1-3.0% by weight of a dispersing agent, and can remarkably reduce the bulk resistivity of a positive electrode system of the lithium battery and improve the conductivity of a pole piece.

Abstract: Controlled height carbon nanotube arrays including catalysts and synthesis methods relating thereto are disclosed. Such nanotube arrays can be prepared from catalyst particles having an Fe:Co:Ni molar ratio impregnated in an exfoliated layered mineral to grow carbon nanotube arrays where the Fe:Co:Ni molar ratio of the catalyst is used to control the height of the array.

Abstract: The invention relates to the technical field of lithium battery slurry materials, in particular to a conductive carbon material dispersing agent which comprises one of modified polyvinyl alcohol, alkyl ammonium salt copolymer, olefin block maleic anhydride copolymer and pyrrolidone copolymer, or mixtures thereof, and can effectively disperse carbon nanotube, graphene and other conductive carbon materials in a solvent to obtain uniform conductive slurry; further disclosed is a high-conductivity slurry for the lithium battery, which comprises 0.5-15.0% by weight of a conductive carbon material and 0.1-3.0% by weight of a dispersing agent, and can remarkably reduce the bulk resistivity of a positive electrode system of the lithium battery and improve the conductivity of a pole piece.

Abstract: Positive electrodes for secondary batteries formed with a plurality of substantially aligned flakes within a coating. The flakes can be formed from metal oxide materials and have a number average longest dimension of greater than 60 ?m. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting of LiCoO2, LiMn2O4, Li(M1x1M2x2Co1-x1-x2)O2 where M1 and M2 are selected from among Li, Ni, Mn, Cr, Ti, Mg, or Al, 0?x1?0.5 and 0?x2?0.5, or alternatively, LiM1(1-x)MnxO2 where 0<x<0.8 and M1 represents one or more metal elements. Methods for making positive electrode materials are also provided involving the formation of structures with a desired longest dimension, preferably polycrystalline flakes. A cathode coating containing polycrystalline flakes may be deposited onto a conductive substrate and pressed to a desired final electrode thickness.

Abstract: Positive electrodes for secondary batteries formed with a plurality of substantially aligned flakes within a coating. The flakes can be formed from metal oxide materials and have a number average longest dimension of greater than 60 ?m. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting of LiCoO2, LiMn2O4, Li(M1x1M2x2Co1-x1-x2)O2 where M1 and M2 are selected from among Li, Ni, Mn, Cr, Ti, Mg, or Al, 0?x1?0.5 and 0?x2?0.5, or alternatively, LiM1(1-x)MnxO2 where 0<x<0.8 and M1 represents one or more metal elements. Methods for making positive electrode materials are also provided involving the formation of structures with a desired longest dimension, preferably polycrystalline flakes. A cathode coating containing polycrystalline flakes may be deposited onto a conductive substrate and pressed to a desired final electrode thickness.

Abstract: A thermally conductive structure and a heat dissipation device are provided. The thermally conductive structure comprises a first thermally conductive layer and a second thermally conductive layer. The first thermally conductive layer comprises a graphene material and first carbon nanotubes, and the first carbon nanotubes are dispersed in the graphene material. The second thermally conductive layer is stacked on the first thermally conductive layer, and comprises a porous material and second carbon nanotubes, and the second carbon nanotubes are dispersed in the porous material. The heat dissipation device comprises the thermally conductive structure and a heat dissipation structure. The thermally conductive structure is in contact with a heat source, and the heat dissipation structure is connected to the thermally conductive structure.

Abstract: A system includes housing having a positive terminal and a negative terminal and one or more energy storage devices disposed therein. One system includes a first energy storage device that operates at a first state of charge level and a second energy storage device that operates at a second state of charge level. The second state of charge level is greater than the first state of charge level.

Abstract: Positive electrodes for secondary batteries formed with a plurality of substantially aligned flakes within a coating. The flakes can be formed from metal oxide materials and have a number average longest dimension of greater than 60 ?m. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting of LiCoO2, LiMn2O4, Li(M1x1M2x2Co1-x1-x2)O2 where M1 and M2 are selected from among Li, Ni, Mn, Cr, Ti, Mg, or Al, 0?x1?0.5 and 0?x2?0.5, or alternatively, LiM1(1-x)MnxO2 where 0<x<0.8 and M1 represents one or more metal elements. Methods for making positive electrode materials are also provided involving the formation of structures with a desired longest dimension, preferably polycrystalline flakes. A cathode coating containing polycrystalline flakes may be deposited onto a conductive substrate and pressed to a desired final electrode thickness.

Abstract: Positive electrodes for secondary batteries formed with a plurality of substantially aligned flakes within a coating. The flakes can be formed from metal oxide materials and have a number average longest dimension of greater than 60 ?m. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting of LiCoO2, LiMn2O4, Li(M1x1M2x2Co1-x1-x2)O2 where M1 and M2 are selected from among Li, Ni, Mn, Cr, Ti, Mg, or Al, 0?x1?0.5 and 0?x2?0.5, or alternatively, LiM1(1-x)MnxO2 where 0<x<0.8 and M1 represents one or more metal elements. Methods for making positive electrode materials are also provided involving the formation of structures with a desired longest dimension, preferably polycrystalline flakes. A cathode coating containing polycrystalline flakes may be deposited onto a conductive substrate and pressed to a desired final electrode thickness.

Abstract: Carbon nanotube-based compositions and methods of making an electrode for a battery are disclosed. It is an objective of the instant invention to disclose a composition for an electrode of a battery incorporating three dimensional networks of carbonaceous materials comprising a bi-modal diameter distribution of carbon nanotubes, CNT(A) and CNT(B), graphene, carbon black and, optionally, other forms of carbon-based pastes.

Abstract: Methods for forming a cathode active material comprise sintering flakes formed from a nickel, manganese, cobalt and lithium-containing slurry to form the cathode material having the formula Li2Ni1?x?yMnxCoyO2, wherein ‘x’ is a number between about 0 and 1, ‘y’ is a number between about 0 and 1, and ‘z’ is a number greater than or equal to about 0.8 and less than 1. Lithium-ion batteries having cathode active materials formed according to methods of embodiments of the invention are provided.

Abstract: A method of making a cathode for a lithium primary battery includes lithiated manganese dioxide and a carbon fluoride. The cathode can provide high capacity and voltage with low gassing.

Abstract: A battery includes a separator with a trapping layer that traps dissolved metal ions.

Abstract: A system includes housing having a positive terminal and a negative terminal and one or more energy storage devices disposed therein. One system includes a first energy storage device that operates at a first state of charge level and a second energy storage device that operates at a second state of charge level. The second state of charge level is greater than the first state of charge level.

Abstract: Systems and methods for configuring tabs on a rechargeable battery may include a current collector comprising one or more collector foil and one or more tabs connected to the collector foil for conveying generated current from the current collector. The tabs may be configured to extract greater capacity from the battery electrodes so that the resulting battery may exhibit higher performance. The tabs may be configured so that the length of the tab is greater than the height of the collector foil so the tab may cover the height of the collector foil and may protrude from the foil.

Abstract: A battery includes a separator with a trapping layer that traps dissolved metal ions.

Abstract: Positive electrodes for secondary batteries formed with a plurality of substantially aligned flakes within a coating. The flakes can be formed from metal oxide materials and have a number average longest dimension of greater than 100 ?m. A variety of metal oxide or metal phosphate materials may be selected such as a group consisting Of LiCoO2, LiMn2O4, Li(M1x1M2x2M3x3CO1-X1-X2)O2 where M1, M2 and M3 are selected from among Li, Ni, Mn, Cr, Ti, Mg, or Al, 0?x1<0.9, 0<x2<0.5 and 0<x3<0.5, or alternatively, LiM1(1-X)MnxO2 where 0<x<0.8 and M1 represents one or more metal elements. Methods for making positive electrode materials are also provided involving the formation of structures with a desired longest dimension, preferably polycrystalline flakes. A cathode coating containing polycrystalline flakes may be deposited onto a conductive substrate and pressed to a desired final electrode thickness.

Abstract: A battery includes a separator with a trapping layer that traps dissolved metal ions.

Abstract: A battery includes a separator with a trapping layer that traps dissolved metal ions.