What does Panasonic Corp., already one of the most powerful and profitable electronics companies in the world, want with Sanyo Electric Co., a company just one-fourth its size in terms of revenues?

Better power supplies.

Sanyo is the world's top producer of lithium-ion batteries, the key component in almost all electronic products needing small, durable and efficient power sources. The products being developed in this exploding market are needed to power everything from cell phones, digital cameras and notebook computers to hybrid automobiles.