ロールtoロールでレーザー高速微細穴加工受託・レーザー加工機制作
ロールtoロールで高速レーザー微細穴あけ
加工受託・レーザー加工機製作
The electrodes produced by forming an LFP layer and an AC layer on each side of the Al current collector foil and then drilling through holes with a laser have a higher discharge capacity at higher current densities than conventional electrodes without holes. It was clarified that the decrease was small and the discharge capacity retention rate was high. Wired Co., Ltd.
A process for fabricating porous graphite electrodes having an average pore diameter of 21 μm and an open area of 1% was developed with a system constructed from a pico-second pulse laser and a polygon mirror. The fabricated porous graphite electrodes were used to evaluate the porous design on the graphite electrodes for exhibiting a higher Li+ pre-doping reaction (pre-lithiation) rate with cells in which graphite electrodes were laminated with separators and the laminated graphite electrodes opposite to a Li metal foil through a separator. The results in this study indicate that lithiation proceeds stepwise from the first electrode close to the Li foil to more distant electrodes. The transfer of Li+ ions controlled the lithiation because lithiation did not occur in areas of the electrodes that did not contain pores. In addition, the porous electrodes exhibited a much higher rate of lithiation when compared with electrodes that were prepared by coating a graphite layer on porous current collectors. WIRED Co., Ltd.