Litium järnfosfat energilagringsbatteri fallstudie

fallstudie för en eventuell investering i litium-jon-batteri som lagringsteknik för en bondgård. Vi vill ge ett stort tack till vår handledare David Sundén från El av sol för all hjälp under arbetets gång …

Is LiTFSI thermally stable?

LiTFSI is thermally stable up to 380 °C , readily soluble in most donor solvents, and the resulting solution shows decent ionic conductivities (e.g., σ (25 °C) = 7.6 × 10 −3 S cm −1 for 1 M LiTFSI-EC/EMC (30:70, v/v) vs. σ (25 °C) = 9.3 × 10 −3 S cm −1 for 1 M LiPF 6 -EC/EMC (30:70, v/v) ).

What is lithium bis (trifluoromethanesulfonyl)imide (LiTFSI)?

Among them, lithium bis (trifluoromethanesulfonyl)imide (LiTFSI) has gained the most attention from both academia and industry. LiTFSI was proposed as electrolyte salt in 1983 and later commercialized by 3 M and Rhodia (later acquired by Solvay).

Can listfsi be used as electrolyte salt for lithium-ion batteries?

Preliminary tests using graphite||LiCoO 2 cells demonstrated the suitability of LisTFSI as electrolyte salt for lithium-ion batteries; however, the main difficulty lies in the development of a scalable synthesis.

What is LiTFSI used for?

LiTFSI was proposed as electrolyte salt in 1983 and later commercialized by 3 M and Rhodia (later acquired by Solvay). Nowadays, hundreds of tons of LiTFSI have been produced and are used as co-salt for lithium-ion batteries, as well as electrolyte salt for post-lithium-ion batteries such as Li-S batteries.

How does lithium leaching affect a rock-salt phase?

Besides, lithium leaching occurs along with Li + /H + cation exchange which leads to capacity loss [207, 361] and triggers the formation of a resistive rock-salt phase on the particle outer surface [, , ].

What is the off-stoichiometry of lithium?

From the structural point of view, the off-stoichiometry is described as [Li 1-z Ni 2+z] 3a [Ni 2+z Ni 3+1-z] 3b [O 2] 6c, with divalent nickel on the lithium positions.