摘要:
A dispersion comprises at least one aqueous solvent, a lithium and titanium mixed oxide such as Li4Ti5O12 and an organic binder comprising a starch-type polysaccharide. The starch-type polysaccharide comprises amylose and amylopectin, with a ratio between the weight proportion of amylose and the weight proportion of amylopectin that is less than or equal to 25%. Such a dispersion can be used to achieve a lithium storage battery electrode.
摘要翻译:分散体包含至少一种水性溶剂,锂和钛混合氧化物如Li 4 Ti 5 O 12 12和一种有机粘合剂,其包含 淀粉型多糖。 淀粉型多糖包括直链淀粉和支链淀粉,直链淀粉的重量比例和支链淀粉的重量比例小于或等于25%。 可以使用这种分散体来实现锂蓄电池电极。
摘要:
Composition for the manufacture of composite electrodes usable in electrochemical devices and comprising at least: (i) one lithium insertion material; (ii) one electronic conducting material; (iii) one amino-functional cationic polyelectrolyte; (iv) water.
摘要:
A lithium storage cell comprises at least a first electrode comprising an active material wherein Li+ cations can be inserted, a second electrode and an electrolyte. The active material of the first electrode comprises a linear condensed compound comprising at least two tetrahedra, respectively of AO4 and A′O4 type, bonded by a common oxygen atom. A transition metal ion M2+ with a degree of oxidation of +2 selected from the group consisting of Ni2+, Co2+, Mn2+, Fe2+ and Ti2+ is inserted in the linear condensed compound, and the ratio between the number of Li+ cations able to be inserted in the active material and the number of transition metal ions M2+ is strictly greater than 1. A and A′ are selected from the group consisting of P5+, Si4+, Al3+, S6+, Ge4+, B3+.
摘要:
The invention related to a liquid electrolyte for a lithium battery comprising a lithium salt dissolved in a mixture of three non-aqueous organic solvents. This mixture consists of:33% to 49 volume % of propylene carbonate,33% to 49 volume % of diethyl carbonate, and2% to 34 volume % of ethyl acetate.The liquid electrolyte is in particular suitable for a lithium battery based on the LiFePO4/Li4Ti5O-12 pair or derivatives thereof, these materials being the respective active materials of the positive and negative electrodes. Such a lithium battery in fact has the advantage of operating in power, over a wide temperature range, while at the same time preserving a low self-discharge capacity.
摘要翻译:本发明涉及一种锂电池用液体电解质,其包含溶解在三种非水有机溶剂的混合物中的锂盐。 该混合物由33%至49体积%的碳酸丙烯酯,33%至49体积%的碳酸二乙酯和2%至34体积%的乙酸乙酯组成。 液体电解质特别适合于基于LiFePO 4 / Li 4 Ti 5 O-12对或其衍生物的锂电池,这些材料是正极和负极的各自的活性材料。 这样的锂电池实际上具有在宽的温度范围内工作的优点,同时保持低的自放电容量。