公开(公告)号：US20110008683A1

公开(公告)日：2011-01-13

申请号：US12886009

申请日：2010-09-20

Applicant: Vladimir KOLOSNITSYN ,  Elena KARASEVA

Inventor： Vladimir KOLOSNITSYN ,  Elena KARASEVA

IPC: H01M6/16 ,  H01M10/42 ,  H01M10/056

CPC classification number: H01M4/40 ,  H01M10/052 ,  H01M10/0567

Abstract: The invention discloses a method of increasing the cycle life of rechargeable battery with a negative electrode (anode) made of lithium or lithium-containing alloys and electrolyte/salt solution which comprises one or more non-aqueous organic solvents and one or more lithium salts, the method comprising adding to the electrolyte/salt solution a lithium dendrite scavenging additive in an amount sufficient that a rate of lithium dendrite formation is equal to or lower than a rate of lithium dissolution occurring due to interaction with the dendrite scavenging additive dissolved in the electrolyte.

Abstract translation: 本发明公开了一种利用含有锂或含锂合金的负极（阳极）和包含一种或多种非水有机溶剂和一种或多种锂盐的电解质/盐溶液来提高可再充电电池的循环寿命的方法， 所述方法包括向电解质/盐溶液中加入锂枝晶清除添加剂，其量足以使锂枝晶形成速率等于或低于由于与溶解在电解质中的枝晶清除添加剂的相互作用而发生的锂溶解速率 。

公开(公告)号：US20100231168A1

公开(公告)日：2010-09-16

申请号：US12787006

申请日：2010-05-25

Applicant: Vladimir KOLOSNITSYN ,  Elena Karaseva

Inventor： Vladimir KOLOSNITSYN ,  Elena Karaseva

IPC: H02J7/00

CPC classification number: H01M10/0569 ,  H01M4/133 ,  H01M4/134 ,  H01M4/136 ,  H01M4/137 ,  H01M4/58 ,  H01M4/581 ,  H01M4/5815 ,  H01M4/60 ,  H01M10/05 ,  H01M10/052 ,  H01M10/056 ,  H01M10/0568 ,  Y02E60/122

Abstract: The invention provides for a method of discharging a chemical source of electric energy in two stages. The chemical source of electric energy comprises a positive electrode (cathode) including sulphur or sulphur-based organic compounds, sulphur-based polymeric compounds or sulphur-based inorganic compounds as a depolarizer, a negative electrode (anode) made of metallic lithium or lithium-containing alloys, and an electrolyte comprising a solution of at least one salt in at least one aprotic solvent. The method comprises the steps of configuring the chemical source of electric energy to generate soluble polysulphides in the electrolyte during a first stage of a two stage discharge process, and selecting the quantity of sulphur in the depolariser and the volume of electrolyte in a way that after the first stage discharge of the cathode, the concentration of the soluble polysulphides in the electrolyte is at least seventy percent (70%) of a saturation concentration of the polysulphides in the electrolyte.

Abstract translation: 本发明提供了两级放电电能化学源的方法。 电能的化学源包括包含硫或硫基有机化合物的正电极（阴极），作为去极化剂的硫基聚合化合物或硫基无机化合物，由金属锂或锂基有机化合物制成的负极（阳极） 包含至少一种非质子传递溶剂中的至少一种盐的溶液的电解质。 该方法包括以下步骤：在两阶段放电过程的第一阶段期间配置电能的化学源以产生电解质中的可溶性多硫化物，并且以如下方式选择去极化器中的硫的量和电解质的体积 阴极的第一阶段放电，电解质中可溶性多硫化物的浓度为电解液中多硫化物饱和浓度的至少百分之七十（70％）。

公开(公告)号：US20110236766A1

公开(公告)日：2011-09-29

申请号：US13153157

申请日：2011-06-03

Applicant: Vladimir KOLOSNITSYN ,  Elena KARASEVA

Inventor： Vladimir KOLOSNITSYN ,  Elena KARASEVA

IPC: H01M10/056

CPC classification number: H01M10/3918 ,  H01M4/13 ,  H01M4/136 ,  H01M4/40 ,  H01M4/58 ,  H01M10/056 ,  H01M10/0565 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2010/4292 ,  H01M2300/0025 ,  Y02E60/122

Abstract: There are disclosed electrolytes comprising solutions of lithium salts with large anions in polar aprotic solvents with a particular concentration of background salts. The concentration of the background salts is selected to be equal or close to the concentration of a saturated solution of these salts in the aprotic solvents used. The electrolytes disclosed can be used in chemical sources of electric energy such as secondary (rechargeable) cells and batteries comprising sulphur-based positive active materials. The use of such electrolytes increases cycling efficiency and cycle life of the cells and batteries.

Abstract translation: 公开了电解质，其包含具有特定浓度的背景盐的极性非质子溶剂中的大量阴离子的锂盐溶液。 选择背景盐的浓度等于或接近所用非质子溶剂中这些盐的饱和溶液的浓度。 所公开的电解质可用于电能的化学源，例如二次（可再充电）电池和包含硫基正极活性材料的电池。 这种电解质的使用提高了电池和电池的循环效率和循环寿命。