Journal
JOURNAL OF POWER SOURCES
Volume 89, Issue 1, Pages 29-39Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0378-7753(00)00378-5
Keywords
lithium-ion; hearing aid device; nickel-metal hydride
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Rechargeable batteries have been designed for powering hearing aid devices (HAD). The cells, based on the lithium-ion chemistry, were designed in a size that is compatible with the existing HAD. The 10 mA h batteries were tested to characterize the design and the electrochemical performance from the point of view of a typical HAD application. Results are presented for constant-current tests, first-cycle conditions, charge voltage cut-off, rate performance, and cycle life. The pulse capabilities and the preliminary safety tests of the batteries will be presented in a following report. The results of the lithium-ion HAD cells developed in this project are compared with other battery chemistries: lithium-alloy and nickel-metal hydride secondary batteries and Zn-air primary batteries. (C) 2000 Elsevier Science S.A. All rights reserved.
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