| 查看: 3521 | 回复: 17 | ||||||
Parker一班木虫 (正式写手)
水牛生态学家
|
[交流]
大牛Jong Hyeok Park最新锂电池力作（Nano Letters，2015年9月28日） 已有9人参与
|
|||||
|
题目：Conformal Coating Strategy Comprising N-doped Carbon and Conventional Graphene for Achieving Ultrahigh Power and Cyclability of LiFePO4 作者：Kan Zhang†, Jeong-Taik Lee‡, Ping Li‡, Byoungwoo Kang§, Jung Hyun Kim†, Gi-Ra Yi*‡, and Jong Hyeok Park*† † Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, Republic of Korea ‡ SKKU Advanced Institute of Nanotechnology (SAINT) and School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea § Department of Materials Science and Engineering, Eng 1-123, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 790-784, Republic of Korea 摘要：Surface carbon coating to improve the inherent poor electrical conductivity of lithium iron phosphate (LiFePO4, LFP) has been considered as most efficient strategy. Here, we also report one of the conventional methods for LFP but exhibiting a specific capacity beyond the theoretical value, ultrahigh rate performance, and excellent long-term cyclability: the specific capacity is 171.9 mAh/g (70 μm-thick electrode with ～10 mg/cm2 loading mass) at 0.1 C (17 mA/g) and retains 143.7 mAh/g at 10 C (1.7 A/g) and 95.8% of initial capacity at 10 C after 1000 cycles. It was found that the interior conformal N–C coating enhances the intrinsic conductivity of LFP nanorods (LFP NR) and the exterior reduced graphene oxide coating acts as an electrically conducting secondary network to electrically connect the entire electrode. The great electron transport mutually promoted with shorten Li diffusion length on (010) facet exposed LFP NR represents the highest specific capacity value recorded to date at 10 C and ultralong-term cyclability. This conformal carbon coating approach can be a promising strategy for the commercialization of LFP cathode in lithium ion batteries. nl-2015-02604e_0007.gif  |
回复此楼» 本帖附件资源列表
-
欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com - 附件 1 : JongHyeokPark_Nano_Letters_2015.pdf
2015-09-28 02:17:47, 4.54 M
» 收录本帖的淘帖专辑推荐
 锂电资源共享 | 纳米技术与能源及模拟 | Li Battery |
» 猜你喜欢
醋酸盐体系溶胶凝胶法合成富锂锰基正极
已经有1人回复
-
牛磺酸钠
已经有1人回复
-
物理化学论文润色/翻译怎么收费?
已经有157人回复
-
Renlab@monash全奖博士机会，最后三天！
已经有0人回复
-
今年面上没有消息，想来是没了，散个金攒攒人品，为明年祈福
已经有628人回复
-
合肥工业大学854仪器技术综合专业课考研
已经有0人回复
-
27年电化学博士毕业，想找海外QS前50的高校读博后求推荐
已经有3人回复
-
27年电池/材料类博士申请
已经有1人回复
-
2027年博士申请或转博科研助理 求推荐
已经有1人回复
-
请问谁有2025最新影响因子Excel表？金币求助！
已经有19人回复
3楼2015-09-29 11:04:40
pengtao1203
至尊木虫 (知名作家)
Walker
- ECEPI: 1
- 应助: 84 (初中生)
- 贵宾: 2.1
- 金币: 38151.3
- 散金: 9004
- 红花: 112
- 沙发: 23
- 帖子: 7703
- 在线: 2166.6小时
- 虫号: 2631195
- 注册: 2013-09-03
- 性别: GG
- 专业: 电化学
12楼2015-10-01 08:49:03
wuanri
木虫 (小有名气)
- 应助: 2 (幼儿园)
- 金币: 3475.6
- 散金: 168
- 红花: 7
- 帖子: 125
- 在线: 179.2小时
- 虫号: 2564447
- 注册: 2013-07-25
- 专业: 无机非金属材料
2楼2015-09-28 06:51:15
| 感谢分享 |
4楼2015-09-29 15:33:00
pengtao1203: 屏蔽内容, 交流内容超出学术范围 2015-10-01 00:29:00
|
本帖内容被屏蔽 |
5楼2015-09-30 01:19:18
qiaoyu09206
金虫 (正式写手)
- 应助: 2 (幼儿园)
- 金币: 466.5
- 散金: 6215
- 红花: 22
- 帖子: 797
- 在线: 50.5小时
- 虫号: 2280380
- 注册: 2013-02-12
- 性别: GG
- 专业: 材料物理化学
6楼2015-09-30 02:01:42
7楼2015-09-30 23:19:15
8楼2015-10-01 00:24:49
9楼2015-10-01 00:26:05
Parker一班
木虫 (正式写手)
水牛生态学家
- 应助: 6 (幼儿园)
- 金币: 3641.7
- 散金: 27
- 红花: 57
- 帖子: 882
- 在线: 159.4小时
- 虫号: 2499414
- 注册: 2013-06-07
- 性别: MM
- 专业: 电化学
10楼2015-10-01 07:53:07
20