| 摘要 |
A portable power tool comprises an electric motor, actuator, or light-emitting hardware and a rechargeable power source connected to the electric motor, actuator, or light-emitting hardware, wherein the power source contains at least a surface-mediated cell (SMC). The power tools include, but are not limited to, impact driver, air compressor, alligator shear, angle grinder, band saw, belt sander, biscuit joiner, ceramic tile cutter tile saw, chainsaw, circular saw, concrete saw, cold saw, crusher, diamond blade, diamond tools, disc sander, drill, floor sander, grinding machine, heat gun, impact wrench, jackhammer, jointer, jigsaw, lathe, miter saw, nail gun, needle scaler, torque wrench, powder-actuated tools, power wrench, radial arm saw, random orbital sander, reciprocating saw, rotary reciprocating saw, rotary tool, sabre saw, sander, scroll saw, steel cut off saw, table saw, thickness planer, trimmer, wall chaser, wood router, or flashlight. |
| 主权项 |
1. A portable power tool electrically powered by a surface-mediated cell-based power source, said portable power tool comprising an electric motor, actuator, or light-emitting hardware and a rechargeable power source electrically connected to said electric motor, actuator, or light-emitting hardware and providing electric power thereto, wherein said power source contains at least a surface-mediated cell (SMC), which is a rechargeable cell that operates by reversibly storing lithium ions on surfaces of a cathode active material, wherein said surface-mediated cell comprises: (a) a positive electrode or cathode comprising a porous cathode current collector and/or a cathode active material having a surface area to capture or store lithium thereon; (b) a negative electrode or anode comprising an anode current collector only or comprising an anode current collector and an anode active material having a surface area to capture or store lithium thereon; (c) a porous separator disposed between the cathode and the anode and soaked with a lithium-containing electrolyte; and (d) a lithium source disposed in the anode or the cathode, wherein the anode active material and/or the cathode active material has a specific surface area of no less than 100 m2/g which is in direct physical contact with the electrolyte to receive lithium ions therefrom or to provide lithium ions thereto. |
