本发明涉及一种还原氧化石墨烯/碳包覆/磷酸铁锂复合材料的制备方法，包括以下步骤：将膨胀石墨通过Hummers法制备氧化石墨烯分散液；在氧化石墨烯分散液中依次加入抗坏血酸、碳酸锂和磷酸铁，充分混合研磨，喷雾干燥，得到混合粉体；将混合干粉在通有惰性气体的管式气氛炉中进行阶段升温烧结，得到还原氧化石墨烯/碳包覆/磷酸铁锂复合材料；本发明方法简单，烧结料可直接作为正极材料应用于锂离子电池，在烧结过程中高温直接将氧化石墨烯热还原成还原氧化石墨烯，无需添加还原剂；本发明方法制备的还原氧化石墨烯/碳包覆/磷酸铁锂复合材料具有较高的电导率、锂离子扩散速率以及优异的倍率性能(3C放电比容量达到151 mAh g‑1)。
[8]Trying to access array offset on value of type null[/websites/wwwroot/www.china-mcc.com/runtime/temp/d969c9ac11613d3901d9652da6568a9b.php:214]
[8]Trying to access array offset on value of type null[/websites/wwwroot/www.china-mcc.com/runtime/temp/d969c9ac11613d3901d9652da6568a9b.php:218]
[8]Trying to access array offset on value of type null[/websites/wwwroot/www.china-mcc.com/runtime/temp/d969c9ac11613d3901d9652da6568a9b.php:237]
[8]Array to string conversion[/websites/wwwroot/www.china-mcc.com/thinkphp/library/think/Url.php:128]
[8]Array to string conversion[/websites/wwwroot/www.china-mcc.com/thinkphp/library/think/Url.php:147]
[8]Array to string conversion[/websites/wwwroot/www.china-mcc.com/thinkphp/library/think/Url.php:147]
[8]Array to string conversion[/websites/wwwroot/www.china-mcc.com/thinkphp/library/think/Url.php:128]
[8]Array to string conversion[/websites/wwwroot/www.china-mcc.com/thinkphp/library/think/Url.php:147]
[8]Array to string conversion[/websites/wwwroot/www.china-mcc.com/thinkphp/library/think/Url.php:147]
[8]Array to string conversion[/websites/wwwroot/www.china-mcc.com/thinkphp/library/think/Url.php:128]
[ DB ] CONNECT:[ UseTime:0.001505s ] mysql:host=pc-m5epcw1px949b110u.rwlb.rds.aliyuncs.com;port=3306;dbname=yousedb;charset=utf8
[ SQL ] SHOW COLUMNS FROM `tb_para` [ RunTime:0.002014s ]
[ SQL ] SELECT * FROM `tb_para` WHERE `id` = 1 LIMIT 1 [ RunTime:0.001208s ]
[ SQL ] SHOW COLUMNS FROM `tb_tech` [ RunTime:0.001284s ]
[ SQL ] UPDATE `tb_tech` SET `hit`=`hit`+1 WHERE `id` = 459079 [ RunTime:0.001128s ]
[ SQL ] SELECT * FROM `tb_tech` WHERE `id` = 459079 LIMIT 1 [ RunTime:0.000995s ]
[ SQL ] SHOW COLUMNS FROM `tb_admin` [ RunTime:0.001300s ]
[ SQL ] SELECT `realname` FROM `tb_admin` WHERE `id` = 1 LIMIT 1 [ RunTime:0.000817s ]
[ SQL ] SHOW COLUMNS FROM `tb_category` [ RunTime:0.001040s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `id` = 141 LIMIT 1 [ RunTime:0.000821s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `id` = 28 LIMIT 1 [ RunTime:0.000927s ]
[ SQL ] SHOW COLUMNS FROM `tb_anchor` [ RunTime:0.001031s ]
[ SQL ] SELECT * FROM `tb_anchor` ORDER BY `id` ASC [ RunTime:0.003099s ]
[ SQL ] SELECT `id`,`title` FROM `tb_tech` WHERE `id` > 459079 AND `check_status` = 1 AND `category_id` = 141 ORDER BY `submit_date` ASC LIMIT 1 [ RunTime:0.004717s ]
[ SQL ] SELECT `id`,`title` FROM `tb_tech` WHERE `id` < 459079 AND `check_status` = 1 AND `category_id` = 141 ORDER BY `submit_date` DESC LIMIT 1 [ RunTime:0.132268s ]
[ SQL ] select id,title,tag,submit_date from tb_tech where check_status=1 and id<>459079 order by submit_date desc limit 10 [ RunTime:0.003747s ]
[ SQL ] SHOW COLUMNS FROM `tb_mcc` [ RunTime:0.001092s ]
[ SQL ] SELECT * FROM `tb_mcc` WHERE `classify` = 1 [ RunTime:0.000917s ]
[ SQL ] SELECT * FROM `tb_mcc` WHERE `classify` = 2 [ RunTime:0.000844s ]
[ DB ] CONNECT:[ UseTime:0.001118s ] mysql:host=mccbfzy.mysql.polardb.rds.aliyuncs.com;port=3306;dbname=ysscdb;charset=utf8
[ SQL ] SHOW COLUMNS FROM `tb_industry_report` [ RunTime:0.001211s ]
[ SQL ] SELECT `id`,`cate_aid`,`cate_bid`,`title`,`pic`,`tag`,`price`,`hit`,`mode` FROM `tb_industry_report` [ RunTime:0.000968s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 36 ORDER BY `sortid` ASC [ RunTime:0.001091s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 37 ORDER BY `sortid` ASC [ RunTime:0.000948s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 38 ORDER BY `sortid` ASC [ RunTime:0.000999s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 39 ORDER BY `sortid` ASC [ RunTime:0.000958s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 40 ORDER BY `sortid` ASC [ RunTime:0.000930s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 41 ORDER BY `sortid` ASC [ RunTime:0.000933s ]
[ SQL ] SHOW COLUMNS FROM `tb_advert` [ RunTime:0.002834s ]
[ SQL ] SELECT * FROM `tb_advert` WHERE `id` = 62 LIMIT 1 [ RunTime:0.001133s ]
[ SQL ] SELECT * FROM `tb_advert` WHERE `id` = 63 LIMIT 1 [ RunTime:0.000901s ]
[ SQL ] SELECT * FROM `tb_advert` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000850s ]
[ SQL ] SELECT * FROM `tb_advert` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000875s ]
1227
编辑：管理员
来源：北方有色网
咨询细节
2026年08月06日 ~ 08日 
