24小时热门版块排行榜    

查看: 803  |  回复: 2

kxch123

新虫 (小有名气)

[求助] 锂离子电池正负极材料首次充放电损失的容量的去向 已有1人参与

扣电中若锂离子电池正极材料首次充放电效率是90%,那么其余充的10%的电量去哪了呢,正极材料结构的变化导致损失的电量占多少呢,副反应(如电解液的副反应消耗的电量)会占多少呢?
另外扣电中碳负极材料首次效率是90%,那么嵌入碳层间不再脱出的锂离子占多少呢,电解液与负极的副反应所消耗的电量占多少呢?
请各位大神帮忙解答,万分感谢。
回复此楼

» 猜你喜欢

» 本主题相关商家推荐: (我也要在这里推广)

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

kangxu

新虫 (小有名气)

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与,应助指数 +1
kxch123: 金币+10, ★★★很有帮助 2015-07-09 17:48:43
kxch123: 金币+10, ★★★很有帮助 2015-07-09 17:48:44
The situation is simple on anode: 10% is responsible for the irreversible reaction that consumes Li+, 90% is responsible for Li+ intercalation. Among the 10% irreversible, tiny amount is caused by Li+ stuck in graphite (such as defects or surface functionality reaction with Li etc), most were caused by reduction of solvents to form Li-salts, which is main ingredient of SEI.
On cathode it's more comlicated and depends on cathode material. In layer TM oxides the first cycle will experience some structural transformation (such as NCA NMC or LMR), and this process will produce excess amount of Li+ that cannot go back to cathode. Sometimes this irreversible cancels out the irreversible produced at anode side. The oxidation of eelctrolytes also happen, which does not directly consume Li+, but some of the products are solible and diffuse to anode to reduce. The net result of whether Li+ is consumed or produced deoends on many factors.
2楼2015-07-09 04:12:46
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

kxch123

新虫 (小有名气)

引用回帖:
2楼: Originally posted by kangxu at 2015-07-09 04:12:46
The situation is simple on anode: 10% is responsible for the irreversible reaction that consumes Li+, 90% is responsible for Li+ intercalation. Among the 10% irreversible, tiny amount is caused by Li ...

Thank you very much!

[ 发自小木虫客户端 ]
3楼2015-07-09 17:48:20
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 kxch123 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[基金申请] 售SCI一区T0P文章,我:8.O.55.1.O.54,科目齐全,可+急 +3 qTvzQBRAHjCi 2026-08-07 5/250 2026-08-08 17:02 by oEVWOejN9taj
[论文投稿] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +3 qTvzQBRAHjCi 2026-08-07 4/200 2026-08-08 16:47 by oEVWOejN9taj
[考博] 售SCI一区T0P文章,我:8O.55.1.O.54,科目全,可伽急 +3 Vi50GxzrFcSG 2026-08-07 4/200 2026-08-08 16:27 by oEVWOejN9taj
[基金申请] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +3 Vi50GxzrFcSG 2026-08-07 5/250 2026-08-08 16:27 by oEVWOejN9taj
[公派出国] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +3 Vi50GxzrFcSG 2026-08-07 5/250 2026-08-08 15:59 by oEVWOejN9taj
[基金申请] 这样的filecode谁见过 +5 布布和一二 2026-08-08 8/400 2026-08-08 14:54 by archvillain
[论文投稿] 售SCI一区T0P文章,我:8O.55.1.O.5.4,科目齐全,可+急 +3 HEQlVqMTIA7d 2026-08-07 5/250 2026-08-08 14:22 by oEVWOejN9taj
[基金申请] 售SCI-T0P文章,我:8O.5.5.1.O.54,科目齐全,可+急 +4 KXLV3nuBVBY7 2026-08-07 5/250 2026-08-08 14:07 by oEVWOejN9taj
[教师之家] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +3 KXLV3nuBVBY7 2026-08-07 5/250 2026-08-08 14:07 by oEVWOejN9taj
[论文投稿] 售SCI文章,我:8O.5.5.1O.54,科目全,可十急 +3 KXLV3nuBVBY7 2026-08-07 6/300 2026-08-08 14:01 by oEVWOejN9taj
[考博] 售SCI一区文章,我:8.O.55.1.O.54,科目齐全,可伽急 +3 HEQlVqMTIA7d 2026-08-07 3/150 2026-08-08 03:47 by 6vVgjDL4CnGu
[基金申请] 关于filecode +4 布布和一二 2026-08-07 7/350 2026-08-07 22:55 by zhanghaozhu
[基金申请] 固定端突然变了,今天 +6 archvillain 2026-08-06 10/500 2026-08-07 16:03 by 医学老男孩
[基金申请] filecode +14 等待解的谜 2026-08-06 19/950 2026-08-07 12:20 by wlwhappy
[基金申请] filecode +8 布布和一二 2026-08-06 11/550 2026-08-06 20:41 by tangpu318
[基金申请] 求各位大神看下 100+6 hpkpkpkp 2026-08-05 33/1650 2026-08-06 14:49 by zhiyanjiang
[基金申请] 好消息?这个有何含义??? +8 Tide man 2026-08-05 10/500 2026-08-05 16:14 by xmuxiaoyu
[基金申请] 纯娱乐,不喜欢勿喷 +7 Tide man 2026-08-04 10/500 2026-08-04 15:10 by loufangrui
[基金申请] 面上提前没消息,有中的吗 +14 archvillain 2026-08-02 18/900 2026-08-04 14:42 by archvillain
[基金申请] 什么时候能放榜呀? +3 Jacob678 2026-08-03 3/150 2026-08-03 16:14 by gltch
信息提示
请填处理意见