Scale-Up of Lithium Iron Phosphate Cathodes with High Active Materials Contents for Lithium Ion Cells

被引：4

作者：

Apachitei, Geanina ^{[1
]}

Heymer, Rob ^{[1
]}

Lain, Michael ^{[1
]}

Dogaru, Daniela ^{[1
]}

Hidalgo, Marc ^{[1
]}

Marco, James ^{[1
]}

Copley, Mark ^{[1
]}

机构：

[1] Univ Warwick, Warwick Mfg Grp, Coventry CV4 7AL, England

来源：

BATTERIES-BASEL | 2023年 / 9卷 / 10期

关键词：

lithium iron phosphate; LFP; lithium ion; scale-up; ELECTROCHEMICAL PERFORMANCES; BATTERY ELECTRODES; OPTIMIZATION; DEGRADATION; EVAPORATION; SURFACE;

D O I：

10.3390/batteries9100518

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The size of a lithium iron phosphate (LFP) cathode mix was increased by a factor of thirty, and the capacity of the cells produced with it by a factor of three-hundred. As well as rate and cycling tests, the coatings were also characterised for adhesion and resistivity. The adhesion and total through-plane resistance were both dependent on the drying conditions during coating. The discharge capacities at high rates and the pulse resistances showed much less influence from the drying temperature. The mix formulation contained 97 wt% LFP, and was based on an earlier design of experiments (DoE) study, using relatively high active material contents. Overall, the mix exceeded the performance predicted by the modelling study.

引用

页数：15

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