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Preparation of a Hierarchically Porous Lead/Carbon Composite and Its Application in Lead‐Carbon Batteries
Author(s) -
Gao Yunfang,
Wan Huojun,
Xia Yunchuan,
Xu Xin,
Wu BaoLiang
Publication year - 2018
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201800515
Subject(s) - carbon fibers , pseudocapacitance , composite number , chemical engineering , materials science , lead (geology) , battery (electricity) , porosity , toluene , hydrogen , chemistry , composite material , electrochemistry , organic chemistry , electrode , supercapacitor , power (physics) , physics , geomorphology , quantum mechanics , engineering , geology
A novel and scalable lead‐modified phenolic resin‐based carbon material (Pb/PRC) has been successfully prepared by using lead‐modified phenolic resin (Pb/PR) as a precursor, toluene as a pore‐forming agent, and KOH as an activating agent. The Pb/PRC composite presents a hierarchically porous nanosphere structure, and this structure contributes to prolong its cycling life under high‐rate partial state‐of‐charge (HRPSoC) operation. Pb/PRC with nano‐lead can effectively inhibit hydrogen evolution and provide pseudocapacitance. Compared with a blank negative plate, a lead‐carbon battery with Pb/PRC displays 18 000 cycles under HRPSoC operation and exhibits a capacity of 100 mA h g −1 at 2 C discharge rate.