TOKYO -- Panasonic unveiled a more advanced prototype battery that has five times the storage capacity of current ones, with the company's battery chief saying it will help deepen business ties with U.S. electric-car maker Tesla.
TOKYO -- Panasonic unveiled a more advanced prototype battery that has five times the storage capacity of current ones, with the company's battery chief saying it will help deepen business ties with U.S. electric-car maker Tesla.
First-quarter net income slipped 6.6 percent to $2.8 billion, while revenue rose 2.3 percent to $44 billion.