A Rational Design for a High-Safety Lithium-Ion Battery Assembled with a Heatproof-Fireproof Bifunctional Separator

Peng Longqing; Kong Xiangbang; Li Hang; Wang Xin; Shi Chuan; Hu Texiong; Liu Yizhen; Zhang Peng; Zhao Jinbao

首页> 外文期刊>Advanced Functional Materials >A Rational Design for a High-Safety Lithium-Ion Battery Assembled with a Heatproof-Fireproof Bifunctional Separator

【24h】

A Rational Design for a High-Safety Lithium-Ion Battery Assembled with a Heatproof-Fireproof Bifunctional Separator

机译：采用耐热防火双功能分离器组装的高安全锂离子电池的合理设计

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

High-Ni-content LiNixCoyMn1-x-yO2 is regarded as a feasible cathode material to meet the urgent requirement for high energy density batteries. However, such cathode has a poor safety performance because of reactive oxygen releasing at elevated temperatures. In pursuit of high-safety lithium-ion batteries, a heatproof-fireproof bifunctional separator is designed in this study by coating ammonium polyphosphate (APP) particles on a ceramic-coated separator modified with phenol-formaldehyde resin (CCS@PFR). The CCS@PFR separator acts as a thermal-supporting layer to inhibit the shrinkage of the separator at elevated temperatures, whereas the APP-coated layer functions as a fireproof layer, forming a dense polyphosphoric acid (PPA) layer above 300 degrees C. The PPA layer not only isolates the combustibles from the highly reactive oxygen released from the cathodes but also converts violent combustion reactions into mild stepwise exothermic reactions by carbonizing the combustibles in the batteries. Enabled with such a heatproof-fireproof bifunctional separator, LiNi0.8Co0.1Mn0.1O2|SiOx-Gr full cells are constructed and these exhibit an excellent safety performance by not catching fire during a 30 s combustion test and surviving the 10 min high-temperature test above 300 degrees C. Additionally, an adiabatic rate calorimeter and nail penetration test are conducted with 3 Ah LiNi0.8Co0.1Mn0.1O2|SiOx-Gr pouch cells to further verify the safety performance.

机译：高NI含量LINIXCOYMN1-X-X-X-X-YO2被认为是可行的阴极材料，以满足高能量密度电池的迫切要求。然而，由于在高温下释放的反应性氧气，这种阴极具有差的安全性能差。在追求高安全性锂离子电池时，通过在用酚醛 - 甲醛树脂（CCS @ PFR）改性的陶瓷涂覆的隔离物上涂覆多磷酸铵（APP）颗粒，在该研究中设计了一种耐热防火双功能分离器。 CCS @ PFR分离器用作热支撑层，以抑制隔膜在升高的温度下的收缩，而应用涂层层用作防火层，形成高于300℃的致密多磷酸（PPA）层。该PPA层不仅将可燃物与从阴极释放的高反应性氧别分离，而且通过碳化电池中的可燃物来将剧烈的燃烧反应转化为温和的逐步放热反应。通过这种耐热防火双功能隔膜，LINI0.8CO0.1MN0.1O2 | SIOX-GR全部细胞构造，并且这些通过在30秒的燃烧试验期间没有捕获火灾并在10分钟的高温下捕获出优异的安全性能。测试以上300℃。另外，绝热速率量热计和指甲渗透试验用3AHLINI0.8CO0.1MN0.1O2 | SIOX-GR袋细胞进行进一步验证安全性能。

著录项

来源
《Advanced Functional Materials》 |2021年第10期|2008537.1-2008537.12|共12页
作者
Peng Longqing; Kong Xiangbang; Li Hang; Wang Xin; Shi Chuan; Hu Texiong; Liu Yizhen; Zhang Peng; Zhao Jinbao;
展开▼
作者单位

Xiamen Univ State Prov Joint Engn Lab Power Source Coll Chem & Chem Engn Minist Educ Engn Res Ctr Electrochem Technol Xiamen 361005 Peoples R China;

Xiamen Univ State Prov Joint Engn Lab Power Source Coll Chem & Chem Engn Minist Educ Engn Res Ctr Electrochem Technol Xiamen 361005 Peoples R China;

Xiamen Univ State Prov Joint Engn Lab Power Source Coll Chem & Chem Engn Minist Educ Engn Res Ctr Electrochem Technol Xiamen 361005 Peoples R China;

Xiamen Univ State Prov Joint Engn Lab Power Source Coll Chem & Chem Engn Minist Educ Engn Res Ctr Electrochem Technol Xiamen 361005 Peoples R China;

Qingdao Univ Coll Phys Qingdao 266071 Peoples R China;

Xiamen Univ Coll Energy Res Xiamen 361102 Peoples R China|Xiamen Univ Sch Energy Res Xiamen 361102 Peoples R China;

Xiamen Univ Coll Energy Res Xiamen 361102 Peoples R China|Xiamen Univ Sch Energy Res Xiamen 361102 Peoples R China;

Xiamen Univ Coll Energy Res Xiamen 361102 Peoples R China|Xiamen Univ Sch Energy Res Xiamen 361102 Peoples R China;

Xiamen Univ State Prov Joint Engn Lab Power Source Coll Chem & Chem Engn Minist Educ Engn Res Ctr Electrochem Technol Xiamen 361005 Peoples R China|Xiamen Univ Coll Energy Res Xiamen 361102 Peoples R China|Xiamen Univ Sch Energy Res Xiamen 361102 Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
ceramic#8208; coated separator; high energy density; high safety; inflaming retarding; lithium#8208; ion battery;

机译：陶瓷涂层分离器;高能量密度;安全性高;膨胀延迟;锂离子电池;

A Rational Design for a High-Safety Lithium-Ion Battery Assembled with a Heatproof-Fireproof Bifunctional Separator

摘要

著录项

相关主题

期刊订阅