動(dòng)力鋰離子電池及其關(guān)鍵材料開發(fā)與評(píng)估-汪繼強(qiáng)-免費(fèi)閱讀
【正文】 C.. 10 20 30 40 50 60 70 80△■■△△◇◇◇■■■△ ■■△△■○■○◇△ SiO2■■ S iO:g r a phit e :co a l pit c h= 3:1: 2 S iO:g r a phit e : c oa l pit c h= 3:2: 1 S iO:g r a phit e : c oa l pit c h= 3:1. 5:1. 52 t h e t a△○■g r aphiteSi CSi S iO:c oa l pit c h= 1:1Fig. TEM images of the Sibased posite with the SiO/graphite/coal. Tianjin Institute of Power Sources Anode material Fig. Charge/discharge curves of SiSiO2C at the current density of 100mA/g. 0 200 400 600 800 10000 .00 .51 .01 .52 .02 .53 .0Potential(V,vs.Li+/Li)C ap aci t y ( mAh / g )□ 1 st cy cle ○ 5 th cy cle 0 10 20 30 40 50 60 70 80 90 100 110010020030040050060070080090010001100open: L i alloy ingsol id: Lide a ll oy ingCapacity(mAh/g)C y cl e n u m b e rFig. Cycliceability of the asprepared SiSiO2graphitecarbon posites at the current density of 100mA/g. (◇ 3/0/3 △ 3/1/2 ○ 3/2/1□ 3/). Tianjin Institute of Power Sources Summary ? Active Materials Cathode: LMO, LFP, NCM。 The others: Additive, separator, safety vent… Tianjin Institute of Power Sources Technical issues and solution 2. Power and Life High power: 1) Increasing the electron and ion diffusion speed 。 Maximum power。 Interface stability (SEI) Tianjin Institute of Power Sources Technical issues and solution 3. Specific Energy New material development Cathode: Layerd Mn based material。 ECS 2022) ? Cmatrix posite influence on LiFePO4 Tianjin Institute of Power Sources LFP Mass Production Line 。 4) Electrolyte Longer life: 1) Cycle life。Tianjin Institute of Power Sources Development and Evaluation of Power Liion Battery and Key Materials 動(dòng)力
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