A negative electrode for lithium secondary battery characterized in that the electrode is obtained by sintering a mixture of an active material alloy and a binder disposed on a current collector, or a mixture of an active material alloy, conductive metal powder and a binder disposed on a current collector, and the active material alloy after sintered is substantially amorphous. The compounds are inhibitors of PI3K and are thus useful for treating proliferative, inflammatory, or cardiovascular disorders. The second storage device stores a second public key corresponding to the second private key. Additionally, the collision avoidance system has an operator interface. The vent hood is laterally adjustable between extended and retracted positions, and is height adjustable between raised and lowered positions.