Nippon Telegraph and Telephone Corporation

Basic Research Laboratories, Nippon Telegraph and Telephone Corporation, 3-9-11, Midori-cho, Musashino-shi, Tokyo 180, Japan... 

Nippon Carbon Company, Ltd., 619 Nippon Telegraph and Telephone Corporation, 515 North Dakota State University, 3 Petrarch Systems, Inc., 181 S. C. Johnson and Son, Inc., 91 Sandia National Laboratories, 227, 241, 341, 379, 459... 

Nippon Telegraph and Telephone Corporation (NTT) has developed a prototype AA-size lithium-metal anode cell [1] with an amorphous VjOj cathode. The energy of this cell is 2 Wh, which is higher than the value of 1.8 Wh for a lithium-ion cell with an LiCoO, cathode ( The estimated value for an AA-size lithium-metal cell with an LiCoOj cathode is about 3 Wh). However, this metal-anode cell has a cycle life of 150 cycles and its thermal stability is 130 °C at a high discharge rate. At a low discharge rate, it has a cycle life of 50 cycles and its thermal stability is 125 °C. 

Polymer Section, Ibaraki Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Tokai, Ibaraki,... 

Acknowledgments. The author wishes to thank Dr. A. Kishimoto of this Laboratory for his generous cooperation in the preparation of this article. His comments, especially on permeation problems, were extremely valuable. Thanks are also due Miss N. Noda and Miss E. Araki who assisted him with the numerical calculations and the typing of the manuscript. This -work was supported fully by a grant from Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Tokyo, to which grateful acknowledgement is made. 

T. Kaino, K. Jinguiji, S. Nara, K. Ishhvari, A. Ohmori, N. Tomihashi and S. Yuhara, inventors Nippon Telegraph and Telephone Public Corporation and Dalkin Kogyo Co., Ltd., assignee EP 0101048A2, 1984. 

Similar designs are also used by the Japanese companies Kyocera, Mitsubishi Materials Corporation (MMC), Nippon Telegraph and Telephone. (NTT), and Toho Gas. Fraunhofer IKTS and Bloom Energy both use conventional cross-flow... 

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