Citation:
WANG Shu-Jun. Study on the Carbonized Poly(p-phenylene) Resin Electrode Material of Lithium Ion Battery (Ⅱ)The Electrochemical Behavior of the Lithium Ion Bettery[J]. Chinese Journal of Applied Chemistry,
;2002, 19(1): 30-33.
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The electrochemical behavior of the lithium ion battery using poly(p-phenylene) resin carbon materials as electrodes have been studied. The results indicated that the irreversibility of the charge-discharge capacity decreased with increase in the carbonization temperature. Compared with those for sample treated at 620℃, the irreversibilities of the samples treated at 1 000℃ and 1 300℃ dropped to about 84% and 80%, respectively. And the irreversibilities of samples treated at over 1 000℃ dropped to 50%. At temperature ranged in 550℃ to 1 300℃, the charge-discharge capacity of resin carbon electrodes was firstly increased and then dropped with increase in carbonization temperature. The results still indicated that the specific surface of the resin carbon was an important factor affecting the charge-discharge capacities of battery. The larger the specific surface of the carbon, the higher the capacity of the battery. And the charge-discharge capacity of carbon electrodes varied inversely with charge-discharge velocity. The stable charge-discharge capacity of carbon electrodes derived from poly(p-phenylene) resin could reach 580 mA·h/g when the charge-discharge current density was 1.0A/m2.
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