Cylindrical cells discharge characteristics

Fig. 4.12 Discharge characteristics of a spiral wound cylindrical cell (17 mm diameter X 33.5 mm height) based on the Li-(CFT)(I couple, at 20 pA over a wide range of temperatures. (By permission of National/Panasonic.)...

Fig. 6.12 Comparison of discharge characteristics for Ni-Cd and Ni-MH cylindrical cells at 20°C. Cell height = 42 mm, cell diameter = 16.5 mm, Charge = 1 C. discharge = 0.2 C. (By permission of National/Panasonic.)...

Fig. 6 (a) Discharge characteristics of high-capacity Li/SOCl2 cylindrical D-size bobbin cell at -1-25 °C. 

Figure 5.4 Typical discharge curves at various charging rates of a cylindrical 3 Ah cell. ( electrical characteristics of a 3 Ah cell using cylindrical configuration.)...

FIGURE 14.49 Pulse discharge characteristics of li/MnOj cylindrical bobbin cell (850-mAh size) at 20 XI . Test conditions continuous load—1 Mil 2.9 /xA pulse load—... 

FIGURE 14.53 Discharge characteristics of cylindrical (spirally wound electrode) Li/MnO cells (CR123A-size) under constant-power mode at 20°C. 

FIGURE 14.54 Summary of discharge characteristics of cylindrical (spirally wound) li/MnOj battery (CR123A size) capacity vs. discharge load to 2.0 V per cell, (a) Constant-resistance loads, (b) Constant-current loads. 

The discharge characteristics and specific energy of experimental primary alkaline button cells, with zinc anodes and Fe(VI) compounds cathodes, were measured and compared to those with Mn02 cathodes. These data are plotted in Figure 25.30 and Ulustrate the higher energy output of the cells fabricated with the Fe(VI) cathodes. Similar results were obtained with cells fabricated in the conventional cylindrical construction. 

Batteries have been build in a spirally wound cylindrical D size. Table 34.15 lists the design parameters. This D-cell battery employed an alloy anode of 85% Li-15% Al. Figure 34.20a shows the discharge characteristics of the battery at several discharge rates and Fig. 34.20(> shows the cycle life characteristics. The declining capacity of the cell with cycling is attributed to increasing impedance of the cathode. ... 

In Europe BASF, in cooperation with Varta Batteries AG, Kelkheim, has successfully produced commercial PPy, and the production of batteries with capacities of 90 A h kg is to be expected in the near future [89,94]. The prototype cells of the type PPy (positive electrode)/LiC104-PC/Li (negative electrode) exhibit excellent charge/discharge characteristics, having undergone some 500 cycles with minimal effect on performance. The construction of the battery is of cylindrical sandwich type. 

Discharge characteristics of Duracell cylindrical and low-rate button lithium-manganese dioxide cells are shown, respectively, in Figures 56.11 and 56.12. 

Figure 56.11 Discharge characteristics of a Duracell DL jN, 3V, leOmAh cylindrical lithium-manganese dioxide cell. Current at 2.7 V (Courtesy of Duracell)...

Figure 56.16 Discharge characteristics of Varta type R 1/2 AA, 3 V, 900mAh cylindrical lithium chromate cell (Courtesy of Varta)...

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