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Key Documents

918059

Sigma-Aldrich

1 M 9,9-dimethylfluorene in THF

a precursor solution to prepare the prelithiation reagent for Si anode

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About This Item

經驗公式(希爾表示法):
C15H14
CAS號碼:
分子量::
194.27
MDL號碼:
分類程式碼代碼:
12352401
NACRES:
NA.23

品質等級

形狀

liquid

雜質

≤1000 ppm H2O

應用

battery manufacturing

儲存溫度

2-8°C

SMILES 字串

CC1(C)C2=C(C=CC=C2)C3=C1C=CC=C3

InChI

1S/C15H14/c1-15(2)13-9-5-3-7-11(13)12-8-4-6-10-14(12)15/h3-10H,1-2H3

InChI 密鑰

ZHQNDEHZACHHTA-UHFFFAOYSA-N

應用

This product offered here allows an ambient-air-tolerant method for negative electrode prelithiation prior to assembly of Li ion batteries. The redox potential of this product makes it useful for those most reported negative electrodes including Si with high capacities and short processing time. It could not only compensate for the initial active lithium loss, but also enable the pairing with high-capacity lithium-free positive electrodes (e.g. sulfur, oxygen, V2O5 etc.) that requires the supply of Li source from the negative electrode to configure Li ion batteries with high energy densities.
Recommended instructions (this should be a separate document):Soak your electrode with the anode material coated on a copper current collector in this prelithiation reagent for a set amount of time. Discard the solution and then wash your electrode twice with THF. For a 1cm diameter electrode with 1∼3 mg acitve material per cm2, use 0.5∼1 mL of prelithiation solution will be enough. You can use an empty coin cell casing as the treatment vessel. Electrode soaking time is important and may need to be optimized for your application. A good time to try is ∼10 min. Longer prelithiation time may cause eletrode structure deformation, leading to a decreased discharge/charge capacity.

訊號詞

Danger

危險分類

Acute Tox. 4 Oral - Aquatic Chronic 2 - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

標靶器官

Central nervous system, Respiratory system

安全危害

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 3

閃點(°F)

1.4 °F

閃點(°C)

-17.0 °C


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High performance lithium-ion and lithium?sulfur batteries using prelithiated phosphorus/carbon composite anode.
Wang G, et al.
Energy Storage Materials, 24, 147-152 (2020)
High performance lithium-ion and lithium−sulfur batteries using prelithiated phosphorus/carbon composite anode..
Wang F, et al.
Energy Storage Materials, 24, 147-152 (2020)

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