当前位置:
X-MOL 学术
›
Adv. Energy Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Open‐Structured V2O5·nH2O Nanoflakes as Highly Reversible Cathode Material for Monovalent and Multivalent Intercalation Batteries
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2017-04-21 , DOI: 10.1002/aenm.201602720
Huali Wang 1 , Xuanxuan Bi 2, 3 , Ying Bai 1 , Chuan Wu 1, 4 , Sichen Gu 1 , Shi Chen 1, 4 , Feng Wu 1, 4 , Khalil Amine 2 , Jun Lu 2
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2017-04-21 , DOI: 10.1002/aenm.201602720
Huali Wang 1 , Xuanxuan Bi 2, 3 , Ying Bai 1 , Chuan Wu 1, 4 , Sichen Gu 1 , Shi Chen 1, 4 , Feng Wu 1, 4 , Khalil Amine 2 , Jun Lu 2
Affiliation
![]() |
The high‐capacity cathode material V2O5·nH2O has attracted considerable attention for metal ion batteries due to the multielectron redox reaction during electrochemical processes. It has an expanded layer structure, which can host large ions or multivalent ions. However, structural instability and poor electronic and ionic conductivities greatly handicap its application. Here, in cell tests, self‐assembly V2O5·nH2O nanoflakes shows excellent electrochemical performance with either monovalent or multivalent cation intercalation. They are directly grown on a 3D conductive stainless steel mesh substrate via a simple and green hydrothermal method. Well‐layered nanoflakes are obtained after heat treatment at 300 °C (V2O5·0.3H2O). Nanoflakes with ultrathin flower petals deliver a stable capacity of 250 mA h g−1 in a Li‐ion cell, 110 mA h g−1 in a Na‐ion cell, and 80 mA h g−1 in an Al‐ion cell in their respective potential ranges (2.0–4.0 V for Li and Na‐ion batteries and 0.1–2.5 V for Al‐ion battery) after 100 cycles.
中文翻译:
开放结构的V2O5·nH2O纳米薄片是用于单价和多价嵌入电池的高度可逆阴极材料
由于电化学过程中的多电子氧化还原反应,大容量阴极材料V 2 O 5 · n H 2 O引起了金属离子电池的极大关注。它具有扩展层结构,可以容纳大离子或多价离子。然而,结构的不稳定性以及差的电子和离子电导率极大地阻碍了其应用。在这里,在电池测试中,自组装V 2 O 5 · n H 2O纳米片在单价或多价阳离子插入作用下均表现出出色的电化学性能。通过简单且绿色的水热法将它们直接生长在3D导电不锈钢网状基材上。经过300°C(V 2 O 5 ·0.3H 2 O)热处理后,可获得层状纳米薄片。具有超薄花瓣的纳米薄片在各自的电位下可在锂离子电池中提供250 mA hg -1的稳定容量,在钠离子电池中提供110 mA hg -1的稳定容量,在铝离子电池中提供80 mA hg -1的稳定容量100次循环后的电压范围(锂离子和钠离子电池为2.0–4.0 V,铝离子电池为0.1–2.5 V)。
更新日期:2017-04-21
中文翻译:

开放结构的V2O5·nH2O纳米薄片是用于单价和多价嵌入电池的高度可逆阴极材料
由于电化学过程中的多电子氧化还原反应,大容量阴极材料V 2 O 5 · n H 2 O引起了金属离子电池的极大关注。它具有扩展层结构,可以容纳大离子或多价离子。然而,结构的不稳定性以及差的电子和离子电导率极大地阻碍了其应用。在这里,在电池测试中,自组装V 2 O 5 · n H 2O纳米片在单价或多价阳离子插入作用下均表现出出色的电化学性能。通过简单且绿色的水热法将它们直接生长在3D导电不锈钢网状基材上。经过300°C(V 2 O 5 ·0.3H 2 O)热处理后,可获得层状纳米薄片。具有超薄花瓣的纳米薄片在各自的电位下可在锂离子电池中提供250 mA hg -1的稳定容量,在钠离子电池中提供110 mA hg -1的稳定容量,在铝离子电池中提供80 mA hg -1的稳定容量100次循环后的电压范围(锂离子和钠离子电池为2.0–4.0 V,铝离子电池为0.1–2.5 V)。