Liquid-phase sintering enabling mixed ionic-electronic interphases and free-standing composite cathode architecture toward high energy solid-state battery

Han，Xiang1; Zhou，Weijun1; Chen，Minfeng1; Luo，Linshan2; Gu，Lanhui1; Zhang，Qiaobao4; Chen，Jizhang1; Liu，Bo3; Chen，Songyan2; Zhang，Wenqing5

2022

10.1007/s12274-022-4242-5

Nano Research   影响因子和分区

1998-0124

1998-0000

Solid-state batteries (SSBs) will potentially offer increased energy density and, more importantly, improved safety for next generation lithium-ion (Li-ion) batteries. One enabling technology is solid-state composite cathodes with high operating voltage and area capacity. Current composite cathode manufacturing technologies, however, suffer from large interfacial resistance and low active mass loading that with excessive amounts of polymer electrolytes and conductive additives. Here, we report a liquid-phase sintering technology that offers mixed ionic-electronic interphases and free-standing electrode architecture design, which eventually contribute to high area capacity. A small amount (∼ 4 wt.%) of lithium hydroxide (LiOH) and boric acid (HBO) with low melting point are utilized as sintering additives that infiltrate into single-crystal Ni-rich LiNiMnCo. (NMC811) particles at a moderately elevated temperature (∼ 350 °C) in a liquid state, which not only enable intimate physical contact but also promote the densification process. In addition, the liquid-phase additives react and transform to ionic-conductive lithium boron oxide, together with the indium tin oxide (ITO) nanoparticle coating, mixed ionic-electronic interphases of composite cathode are successfully fabricated. Furthermore, the liquid-phase sintering performed at high-temperature (∼ 800 °C) also enables the fabrication of highly dense and thick composite cathodes with a novel free-standing architecture. The promising performance characteristics of such composite cathodes, for example, delivering an area capacity above 8 mAh·cm within a wide voltage window up to 4.4 V, open new opportunities for SSBs with a high energy density of 500 Wh·kg for safer portable electronic and electrical transport. [Figure not available: see fulltext.].

freestanding architecture liquid-phase sintering mixed ionic-electronic interphases single-crystal Ni-rich LiNi0.8Mn0.1Co0.1 solid-state battery

SCI ; EI

英语

其他

Natural Science Foundation of Jiangsu Province[BK20200800] ; National Natural Science Foundation of China[51902165,12004145,52072323,52122211] ; Natural Science Foundation of Jiangxi Province["20192ACBL2004","20212BAB214032"]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000780304400002

TSINGHUA UNIV PRESS

20221411915217

Additives ; Architecture ; Boric acid ; Cathodes ; Indium compounds ; Liquids ; Lithium-ion batteries ; Polyelectrolytes ; Single crystals ; Solid electrolytes ; Solid-State Batteries ; Tin oxides

Buildings and Towers:402 ; Secondary Batteries:702.1.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Inorganic Compounds:804.2 ; Organic Polymers:815.1.1 ; Polymer Products:817.1 ; Crystalline Solids:933.1

2-s2.0-85127503916

Scopus

1.College of Materials Science and Engineering,Nanjing Forestry University,Nanjing,210037,China
2.Department of Physics,Xiamen University,Xiamen,361005,China
3.College of Mathematics and Physics,Jinggangshan University,Ji’an,343009,China
4.Department of Materials Science and Engineering,College of Materials,Xiamen,361005,China
5.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China

Han，Xiang,Zhou，Weijun,Chen，Minfeng,et al. Liquid-phase sintering enabling mixed ionic-electronic interphases and free-standing composite cathode architecture toward high energy solid-state battery[J]. Nano Research,2022,15:6156-6167.

Han，Xiang.,Zhou，Weijun.,Chen，Minfeng.,Luo，Linshan.,Gu，Lanhui.,...&Zhang，Wenqing.(2022).Liquid-phase sintering enabling mixed ionic-electronic interphases and free-standing composite cathode architecture toward high energy solid-state battery.Nano Research,15,6156-6167.

Han，Xiang,et al."Liquid-phase sintering enabling mixed ionic-electronic interphases and free-standing composite cathode architecture toward high energy solid-state battery".Nano Research 15(2022):6156-6167.