摘要:
Plasma processing apparatus (10) includes a cathode/target assembly (16) connected to a first terminal of an external power supply (54) and an anode/ion source (12) connected to a second terminal of the external power supply (54). The anode/ion source (12) includes an electrode member (38) having a central aperture (40) therein that defines an active surface (42) on the electrode member (38). A magnet member (48) positioned adjacent the electrode member (38) produces an electron-confining magnetic tunnel (B) adjacent the active surface (42) of the electrode member (38). The electron-confining magnetic tunnel (B) traps electrons adjacent the active surface (42), some of which ionize process gas (21). A shield member (44) having a central aperture (46) therein surrounds the electrode member (38) so that the central aperture (46) of the shield member (44) is generally aligned with the central aperture (40) in the electrode member (38).
摘要:
A circuit (10) for reversing polarity of a first (14) and a second (16) electrode may comprise a first inductor (26) connected between the first electrode (14) and a negative (-) terminal of an external power supply (12). The positive terminal (+) of the power supply (12) is connected to the second electrode (16). A diode (34) and a first capacitor (30) are connected in series across the first (14) and second (16) electrodes so that the cathode (48) of the diode (34) is connected in series across the first (14) electrode. A second capacitor (32) and switching device (36) are also connected in series across the first (14) and second (16) electrodes. A second inductor (28) is connected between the switching device (36) and the anode (50) of the diode (34).
摘要:
High surface energy vapor grown carbon fibers and methods of making such fibers. The high surface energy vapor grown carbon fibers of the present invention have a surface energy greater than about 75 mJ/m2 without post-manufacture treatment.
摘要:
A lithium ion battery comprising a negative electrode, a non-aqueous solvent and a positive electrode having LiV2O5 admixed with a conductive material. The conductive material is preferably carbon in an amount ranging from about 2 percent to 20 percent by weight of the positive electrode. Ten percent by weight is preferred. The LiV2O5 is formed by discharging an admixture of V2O5 and the conductive material in an electrochemical reactor with a lithium metal negative electrode and having an electrolyte salt in a non-aqueous solvent to reduce by one Faraday per mole of V2O5 the admixture to convert all of the V2O5. The cell is preferably discharged to about 2.8 volts to form the LiV2O5 positive electrode which is then removed and formed into a predetermined electrode configuration for use as a positive electrode in a cell without lithium metal present.
摘要翻译:一种锂离子电池,包括负极,非水溶剂和具有与导电材料混合的LiV 2 O 5的正极。 导电材料优选碳的量为正极重量的约2%至20%。 十重量%是优选的。 LiV2O5是通过在电化学反应器中用V 2 O 5和导电材料的混合物排放锂金属负极并在非水溶剂中具有电解质盐以每摩尔V 2 O 5减少一法拉第该混合物而形成的, V2O5。 优选将电池放电至约2.8伏以形成LiV2O5正电极,然后将LiV2O5正电极移除并形成预定的电极配置,以在没有锂金属存在的电池中用作正电极。
摘要:
On a mis au point un nouveau procédé de conservation de fruits, de légumes et d'oeufs frais, consistant à appliquer sur la peau ou la coque extérieure de ces derniers, une couche de polymère perméable à la vapeur d'eau mais imperméable à l'oxygène. On applique un revêtement durcissable à cette couche polymère perméable à la vapeur d'eau, afin de produire un revêtement insoluble dans l'eau, imperméable à la vapeur d'eau mais perméable à l'oxygène, ainsi qu'au dioxide de carbone, à l'éthylène et à l'azote, lequel est ensuite durcit.
摘要:
A method of modifying the surface of carbon materials such as vapor grown carbon nanofibers is provided in which silicon is deposited on vapor grown carbon nanofibers using a chemical vapor deposition process. The resulting silicon-carbon alloy may be used as an anode in a rechargeable lithium ion battery.
摘要:
A process for forming carbon nanofibers by means of pyrolyzation with plasma in a reactor is disclosed. The process includes the steps of: providing, in a reactor, a first catalyst in the form of solid catalytic particles; applying a vacuum to the reactor to create a reduced pressure in the reactor; feeding a first mixture of gases including a carbon-based gas into the reactor; forming, from the carbon-based gas, a plasma containing carbon free-radical species; and forming, in the presence of the catalytic particles, carbon nanofibers.
摘要:
A process for fabricating a carbon composite structure that is lightweight, structurally sound, and characterized by high heat capacity. A carbon structure is devised with cavities therein receiving a phase change medium. The phase change medium demonstrates both high energy absorption capacity and high thermal conductivity and is formed from a carbon fiber to establish a high porosity medium having a large volume fraction. The surface energy of the carbon fibers is enhanced in various ways as by deposition of a carbide former, a metallurgical coating or a precursor liquid or by electroplating or etching the surfaces of the carbon fibers. The enhanced surface energy allows for the retention of phase change material.