摘要:
An electrochemical energy storage device, lithium super-battery, comprising a positive electrode, a negative electrode, a porous separator disposed between the two electrodes, and a lithium-containing electrolyte in physical contact with the two electrodes, wherein the positive electrode comprises a disordered carbon material having a functional group that reversibly reacts with a lithium atom or ion. The disordered carbon material is selected from a soft carbon, hard carbon, polymeric carbon or carbonized resin, meso-phase carbon, coke, carbonized pitch, carbon black, activated carbon, or partially graphitized carbon. In a preferred embodiment, a lithium super-battery having a functionalized disordered carbon cathode and a Li4Ti5O12 anode exhibits a gravimetric energy ˜5-10 times higher than those of conventional supercapacitors and a power density ˜10-30 times higher than those of conventional lithium-ion batteries. This device has the best properties of both the lithium ion battery and the supercapacitor.
摘要翻译:一种电化学蓄电装置,锂超级电池,包括正极,负极,设置在两个电极之间的多孔隔板和与两个电极物理接触的含锂电解质,其中正极包括无序的 具有与锂原子或离子可逆地反应的官能团的碳材料。 无序碳材料选自软碳,硬碳,聚合碳或碳化树脂,中间相碳,焦炭,碳化沥青,炭黑,活性炭或部分石墨化碳。 在优选实施例中,具有官能化无序碳阴极和Li 4 Ti 5 O 12阳极的锂超级电池显示比常规超级电容器高约5-10倍的重量能量,并且功率密度比传统锂电池高10〜30倍 电池。 该器件具有锂离子电池和超级电容器的最佳性能。
摘要:
An electrochemical energy storage device, lithium super-battery, comprising a positive electrode, a negative electrode, a porous separator disposed between the two electrodes, and a lithium-containing electrolyte in physical contact with the two electrodes, wherein the positive electrode comprises a plurality of chemically functionalized nano graphene platelets (f-NGP) or exfoliated graphite having a functional group that reversibly reacts with a lithium atom or ion. In a preferred embodiment, a lithium super-battery having a f-NGP positive electrode and Li4Ti5O12 negative electrode exhibits a gravimetric energy ˜5 times higher than conventional supercapacitors and a power density ˜10 times higher than conventional lithium-ion batteries. This device has the best properties of both the lithium ion battery and the supercapacitor.
摘要翻译:一种锂电池,包括正极,负极,设置在两个电极之间的多孔隔板的锂电池,以及与两个电极物理接触的含锂电解质,其中正电极包括多个 的化学官能化纳米石墨烯片(f-NGP)或具有与锂原子或离子可逆反应的官能团的剥离石墨。 在一个优选实施例中,具有f-NGP正极和Li 4 Ti 5 O 12负极的锂超级电池表现出比传统超级电容器高约5倍的重量能量,并且功率密度比常规锂离子电池高约10倍。 该器件具有锂离子电池和超级电容器的最佳性能。
摘要:
An electrochemical energy storage device, lithium super-battery, comprising a positive electrode, a negative electrode, a porous separator disposed between the two electrodes, and a lithium-containing electrolyte in physical contact with the two electrodes, wherein the positive electrode comprises a disordered carbon material having a functional group that reversibly reacts with a lithium atom or ion. The disordered carbon material is selected from a soft carbon, hard carbon, polymeric carbon or carbonized resin, meso-phase carbon, coke, carbonized pitch, carbon black, activated carbon, or partially graphitized carbon. In a preferred embodiment, a lithium super-battery having a functionalized disordered carbon cathode and a Li4Ti5O12 anode exhibits a gravimetric energy ˜5-10 times higher than those of conventional supercapacitors and a power density ˜10-30 times higher than those of conventional lithium-ion batteries. This device has the best properties of both the lithium ion battery and the supercapacitor.
摘要翻译:一种电化学蓄电装置,锂超级电池,包括正极,负极,设置在两个电极之间的多孔隔板和与两个电极物理接触的含锂电解质,其中正极包括无序的 具有与锂原子或离子可逆地反应的官能团的碳材料。 无序碳材料选自软碳,硬碳,聚合碳或碳化树脂,中间相碳,焦炭,碳化沥青,炭黑,活性炭或部分石墨化碳。 在优选实施例中,具有官能化无序碳阴极和Li 4 Ti 5 O 12阳极的锂超级电池显示比常规超级电容器高约5-10倍的重量能量,并且功率密度比传统锂电池高10〜30倍 电池。 该器件具有锂离子电池和超级电容器的最佳性能。
摘要:
A lithium super-battery cell comprising: (a) A cathode comprising a cathode active material having a surface area to capture or store lithium thereon, wherein the cathode active material is not a functionalized material and does not bear a functional group; (b) An anode comprising an anode current collector; (c) A porous separator disposed between the two electrodes; (d) A lithium-containing electrolyte in physical contact with the two electrodes, wherein the cathode active material has a specific surface area of no less than 100 m2/g being in direct physical contact with the electrolyte to receive lithium ions therefrom or to provide lithium ions thereto; and (e) A lithium source implemented at one or both of the two electrodes prior to a first charge or a first discharge cycle of the cell. This new generation of energy storage device exhibits the best properties of both the lithium ion battery and the supercapacitor.
摘要:
An electrochemical energy storage device, lithium super-battery, comprising a positive electrode, a negative electrode, a porous separator disposed between the two electrodes, and a lithium-containing electrolyte in physical contact with the two electrodes, wherein the positive electrode comprises a plurality of chemically functionalized nano graphene platelets (f-NGP) or exfoliated graphite having a functional group that reversibly reacts with a lithium atom or ion. In a preferred embodiment, a lithium super-battery having a f-NGP positive electrode and Li4Ti5O12 negative electrode exhibits a gravimetric energy ˜5 times higher than conventional supercapacitors and a power density ˜10 times higher than conventional lithium-ion batteries. This device has the best properties of both the lithium ion battery and the supercapacitor.
摘要翻译:一种锂电池,包括正极,负极,设置在两个电极之间的多孔隔板的锂电池,以及与两个电极物理接触的含锂电解质,其中正电极包括多个 的化学官能化纳米石墨烯片(f-NGP)或具有与锂原子或离子可逆反应的官能团的剥离石墨。 在一个优选实施例中,具有f-NGP正极和Li 4 Ti 5 O 12负极的锂超级电池表现出比传统超级电容器高约5倍的重量能量,并且功率密度比常规锂离子电池高约10倍。 该器件具有锂离子电池和超级电容器的最佳性能。
摘要:
A surface-controlled, lithium ion-exchanging battery device comprising: (a) A positive electrode (cathode) comprising a first functional material having a first lithium-capturing or lithium-storing surface; (b) A negative electrode (anode) comprising a second functional material having a second lithium-capturing or lithium-storing surface; (c) A porous separator disposed between the two electrodes, and (d) A lithium-containing electrolyte (preferably liquid or gel electrolyte) in physical contact with the two electrodes; wherein at least one of the two electrodes contains therein a lithium source (e.g., lithium foil, lithium powder, stabilized lithium particles, etc) prior to the first charge or the first discharge cycle of the battery device. This new generation of energy storage device exhibits the best properties of both the lithium ion battery and the supercapacitor.
摘要:
A surface-mediated, lithium ion-exchanging energy storage device comprising: (a) A positive electrode (cathode) comprising a cathode active material that is not a functional material (bearing no functional group reactive with lithium), but having a surface area to capture or store lithium thereon; (b) A negative electrode (anode) comprising an anode active material having a surface area to capture or store lithium thereon; (c) A porous separator disposed between the two electrodes; and (d) A lithium-containing electrolyte in physical contact with the two electrodes, wherein the anode active material and/or the cathode active material has a specific surface area of no less than 100 m2/g in direct physical contact with the electrolyte to receive lithium ions therefrom or to provide lithium ions thereto; wherein at least one of the two electrodes contains therein a lithium source prior to a first charge or a first discharge cycle of the energy storage device. This new generation of energy storage device exhibits the best properties of both the lithium ion battery and the supercapacitor.
摘要:
A surface-enabled, metal ion-exchanging battery device comprising a cathode, an anode, a porous separator, and a metal ion-containing electrolyte, wherein the metal ion is selected from (A) non-Li alkali metals; (B) alkaline-earth metals; (C) transition metals; (D) other metals such as aluminum (Al); or (E) a combination thereof; and wherein at least one of the electrodes contains therein a metal ion source prior to the first charge or discharge cycle of the device and at least the cathode comprises a functional material or nano-structured material having a metal ion-capturing functional group or metal ion-storing surface in direct contact with said electrolyte, and wherein the operation of the battery device does not involve the introduction of oxygen from outside the device and does not involve the formation of a metal oxide, metal sulfide, metal selenide, metal telluride, metal hydroxide, or metal-halogen compound. This energy storage device has a power density significantly higher than that of a lithium-ion battery and an energy density dramatically higher than that of a supercapacitor.
摘要:
A surface-enabled, metal ion-exchanging battery device comprising a cathode, an anode, a porous separator, and a metal ion-containing electrolyte, wherein the metal ion is selected from (A) non-Li alkali metals; (B) alkaline-earth metals; (C) transition metals; (D) other metals such as aluminum (Al); or (E) a combination thereof; and wherein at least one of the electrodes contains therein a metal ion source prior to the first charge or discharge cycle of the device and at least the cathode comprises a functional material or nano-structured material having a metal ion-capturing functional group or metal ion-storing surface in direct contact with said electrolyte, and wherein the operation of the battery device does not involve the introduction of oxygen from outside the device and does not involve the formation of a metal oxide, metal sulfide, metal selenide, metal telluride, metal hydroxide, or metal-halogen compound. This energy storage device has a power density significantly higher than that of a lithium-ion battery and an energy density dramatically higher than that of a supercapacitor.
摘要:
A surface-controlled, lithium ion-exchanging battery device comprising: (a) A positive electrode (cathode) comprising a first functional material having a first lithium-capturing or lithium-storing surface; (b) A negative electrode (anode) comprising a second functional material having a second lithium-capturing or lithium-storing surface; (c) A porous separator disposed between the two electrodes, and (d) A lithium-containing electrolyte (preferably liquid or gel electrolyte) in physical contact with the two electrodes; wherein at least one of the two electrodes contains therein a lithium source (e.g., lithium foil, lithium powder, stabilized lithium particles, etc) prior to the first charge or the first discharge cycle of the battery device. This new generation of energy storage device exhibits the best properties of both the lithium ion battery and the supercapacitor.