A method for improve that capacity of 1.55 V nanometer lithium titanate battery

A technology of lithium titanate and battery capacity, which is applied in the field of increasing the capacity of 1.55V nano-lithium titanate single battery, can solve the problems of loss of battery performance, reduction of battery cycle times, and shortened battery life, and achieve the goal of breaking the bottleneck of use Effect
CN109216801AActive Publication Date: 2019-01-15SHANDONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV OF SCI & TECH
Publication Date
2019-01-15

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Abstract

The invention discloses a method for improving nanometer 1.55 V lithium titanate battery, Butyl titanate is dissolve by adding wat and polyvinyl alcohol PVA into butyl titanate, The precursor was prepared by homogeneous hydrothermal reaction with aqueous solution of lithium hydroxide and terbium nitrate Tb (NO_3) _ 3. The precursor was calcined to obtain Li_ (0.99) Tb_ (0.01) Li_ (1 / 3) Ti_ (5 / 3) O_ (4) powders. The capacity of the 1.55 V battery of the lithium titanate synthesized by the present invention was 253 mAh / g.
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Description

technical field

[0001] The invention relates to a lithium titanate battery, and in particular provides a method for increasing the capacity of a 1.55V nanometerized lithium titanate single battery. Background technique

[0002] In the 1990s, lithium titanate Li 4 Ti 5 o 12 Appearing as the anode material of a new type of lithium battery, it has been valued due to its high safety, high stability, long life and green environmental protection. As far as the currently used lithium titanate battery is concerned, lithium titanate is used as the negative electrode material instead of graphite, and it can be combined with lithium manganate, ternary materials or lithium iron phosphate and other positive electrode materials to form a 2.4V or 1.9V lithium ion secondary battery. Lithium titanate battery has obvious advantages, but its shortcomings are also obvious, such as relatively low energy density and weak battery life, which is largely determined by the voltage of the single ba...

Claims

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