Abstract:
A method for preparing an amorphous carbon material for use as an electrode, such as the anode of an electrochemical cell. The amorphous carbon is fabricated in a one heating step process from multi-functional organic monomers. Electrodes so fabricated may be incorporated into electrochemical cells (10) as the anode (20) thereof.
Abstract:
A method for preparing a carbon material for use as an electrode, such as the anode (30) of an electrochemical cell (10). The carbon is fabricated in a heating process from a plurality of multifunctional organic monomers selected from first and second groups of monomers. Electrodes so fabricated may be incorporated into electrochemical cells (10) as the anode (20) thereof.
Abstract:
An electrochemical charge storage device (10) includes first and second electrodes (16, 22) with first and second current collectors (18, 24) respectively attached, an electrolyte (20) disposed between the electrodes and first and second metal foils (14, 26) to separate the electrodes (16, 22) from a packaging material. The packaging material consists of multilayered first and second polymeric packaging films (12, 28) which enclose the other components of the device (10), and are sealed to each other.
Abstract:
A thin film multi-layered electrolyte (56) for a rechargeable electrochemical cell (50), and a rechargeable cell including the electrolyte. The multi-layered electrolyte (56) consists of a primary electrolyte (58) having at least one secondary electrolyte material (60a) disposed on one surface thereof. The secondary electrolyte material (60a) should be selected so as to have a potential stability window sufficient to prevent decomposition of the primary electrolyte, while preventing chemical reactions leading to the formation of ionically non-conducting materials on the surface of the electrodes of the electrochemical cell. A rechargeable electrochemical cell is made by disposing the multi-layered material between a positive (54) and negative (52) electrode.
Abstract:
A method for preparing a carbon material for use as an electrode, such as the anode (30) of an electrochemical cell (10). The carbon is fabricated in a heating process from a plurality of multifunctional organic monomers selected from first and second groups of monomers. Electrodes so fabricated may be incorporated into electrochemical cells (10) as the anode (20) thereof.
Abstract:
A method for preparing an amorphous carbon material for use as an electrode, such as the anode of an electrochemical cell. The amorphous carbon is fabricated in a one heating step process from multi-functional organic monomers. The material is then reheated in the presence of a lithium salt such as LiNO3, Li3PO4 or LiOH. Electrodes so fabricated may be incorporated into electrochemical cells (10) as the anode (20) thereof.
Abstract translation:一种制备用作电极的无定形碳材料的方法,例如电化学电池的阳极。 在多功能有机单体的一个加热步骤中制造无定形碳。 然后在锂盐如LiNO 3,Li 3 PO 4或LiOH的存在下再加热该材料。 如此制造的电极可以作为其阳极(20)并入电化学电池(10)中。
Abstract:
A rechargeable battery (208) is charged using a charger (202). The charge current provided by charger (202) is a stepped-down pulse where the battery charge current rate change is determined by the rise time of the battery voltage. The charge pulse sequence is repeated after the polarization recovery period is completed. The polarization recovery time of the previous period will determine if the stepped-down pulse has to be modified.
Abstract:
An electrochemical cell (10) includes first and second electrodes (12) and (14) with an electrolyte system (26) disposed therebetween. The electrolyte system includes at least a first and second layer (28) and (30), the second layer (30) being gelled and used to absorb an electrolyte active species.
Abstract:
An electrochemical charge storage device (10) includes first and second electrodes (16, 22) with first and second current collectors (18, 24) respectively attached, an electrolyte (20) disposed between the electrodes and first and second metal foils (14, 26) to separate the electrodes (16, 22) from a packaging material. The packaging material consists of multilayered first and second polymeric packaging films (12, 28) which enclose the other components of the device (10), and are sealed to each other.
Abstract:
Briefly, according to the invention, there is provided an energy storage device (5) with three electrodes. A first electrolyte (15) is situated between the first (10) and second (20) electrodes so that it is in contact with each of the electrodes, forming a battery cell (80). A second electrolyte (25) is placed between the second (20) and third (30) electrodes so that it is also in contact with each electrode, forming an electrochemical capacitor (70). The battery and capacitor each share a common electrode (20). After charging, the energy storage device can be linked to an electrical device to power it by discharging the battery portion to provide a substantially constant voltage, and discharging the capacitor portion to provide a substantially constant current when the device requires higher levels of current than the battery portion is capable of providing.