Galvanostatic discharge curves

Figure 1. Galvanostatic discharge curve (three-electrode cell), at 2 mA, for a PPy/CNTspellet electrode m= 9.6 mg.

Figure 3. Galvanostatic discharge curves (three-electrode cell) at 2 mA ofaPPy/CNTs pellet electrode (m=6.7 mg) before (2) and after (1) galvanostatic cycling in a symmetric capacitor (two electrode cell) at U=0.8 V. After the discharge (1), the electrode was charged up to 0.2 V (curve 3) and then discharged (curve 4).

Figure 6. The galvanostatic discharge curves and self-charge curve for Zn-Air coin battery with PANI/TEG gas-diffusion electrode.

Fig. 6. Galvanostatic discharge curves of button-type cells Li/1 M L1CIO4 + EC PC DME/LT—CFV, HT—CF, at 40 mAg 1. LT—CFV fluorine-graphite intercalation compound prepared at a low temperature, HT—CFV graphite fluoride prepared at a high temperature (reproduced with permission from J. Power Sources, 68 (1994) 708 [34]).

Fig. 22. Galvanostatic discharge curves of Li/Li+-MEP-7/C6oFv and C7UF, cells at 10 fiA/cm2 (reproduced by permission of the Electrochemical Society from J. Electrochem. Soc., 143 (1996) 2270 [70]).

Figure 18. Galvanostatic discharge curves at room temperature and at 0.1 mA cm for layered cobalt and nickel oxides, and spinel manganese oxide in ethylene carbonate-diethyl carbonate-LiN(CF3S02)2 [134] (by permission of Elsevier Seience S.A. S. Megahed, B. Scrosati, J. Power...

Fig. 37.4. Galvanostatic discharge curves of the Zn/Na3P04. HjO/HUP/PbOj-HUP battery.

Figure 2 shows that in the case of galvanostatic discharge of a PANI electrode with relatively low currents, a region of stable potential value (E 0.1 V) appears (curve 1 in Figure 2). This region actually corresponds to the electroreduction of oxygen at the PANI electrode.

Figure 5. Galvanostatic charge/discharge curves of the coin cell mockups of Zn-Air battery...

Figure 1. Initial Galvanostatic Charge/Discharge Curves of Three Types of Active Carbonaceous Materials at C/20 rate.

Figure 6. Galvanostatic charge/discharge curves of natural SLA 1015 at C/20, C/l 0, C/3, C/2 and C rates. Electrolyte EC-DMC (1 1) LiPF6 (1M).

The electrochemical galvanostatic charge-discharge curves at different rates are presented by Figure 6. The data is also summarized in Table 6. In our testing, the irreversible capacity loss of SLC1015 was seen to... 

The conducting polymers show a significant non-faradaic component of the electrochemical mechanism. The essential differences of faradaic and non-faradaic systems in equilibrium behavior, trends of galvanostatic charge - discharge curves and cyclic voltammograms have been shown, and criteria for the identification of these mechanisms are proposed [8],... 

The observed small and interconnected pores are expected to perform as electrodes of supercapacitors. Cyclic voltammetry (CV) and galvanostatic charge/discharge curves were used to characterize the capacitive properties the resulting data in simple acid (1 mol L 1 II2S0/() are shown in Fig. 7.11. 

Fig. 7.11 Electrochemical performance of different carbons using a three-electrode cell in 1 mol L 1 H2S04 (a) cyclic voltammograms at a scan rate of 1 mV s 1, (b) galvanostatic charge/discharge curves at a current density of 0.2 Ag 1, (c) relationship of the specific capacitance with respect to the charge/discharge specific currents, and (d) Ragone plots.

Fig. 11.3 Electrochemical performance of CNFs CNTs. (a) Galvanostatic discharge/charge (Li inser-tion/extraction, voltage decrease/increase) curves of CNFs CNTs at a cycling rate of C/5 in 1M LiPF6 in 1 1 (v/v) ethylene carbonate (EC)/dimethyl carbonate (DMC) (b) comparison of the electrochemical performance of pristine CNTs and CNFs CNTs in 1M LiPF6 in EC/DMC solution (reprinted with permission from [25]).

Fig. 11.8 (a) Galvanostatic charge-discharge curve of the supercapacitor using G/CNTs (10 1) as the active material at constant current densities of 100, 250, 500, and 1000 mAg-1 using 30wt% KOH electrolyte, (b) Specific capacitance of 3D hybrid G/CNTs (10 1) measured at different current densities. Reprinted with permission from [88]. 

---