2,6-Bis(diethoxyphosphinothioyl)-2,6-dimethylheptanedinitrile

• 分子结构分类: 有机化合物 - 有机磷化合物 - 有机硫代磷化合物
• 英文名称: 2,6-Bis(diethoxyphosphinothioyl)-2,6-dimethylheptanedinitrile
• 化学式: C₁₇H₃₂N₂O₄P₂S₂
• 分子量: 454.5
• InChiKey: IECXQQYRCODHJV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.7
• 重原子数：
  27
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  149
• 氢给体数：
  0
• 氢受体数：
  8

文献信息

• ELECTROLYTE AND BATTERY
  申请人：Contemporary Amperex Technology Co., Limited

  公开号：EP3629411A1

  公开（公告）日：2020-04-01

  The present application relates to the field of energy storage materials, and particularly, to an electrolytic solution and a battery using the electrolytic solution. The electrolytic solution of the present application contains an additive, the additive including a multi-cyano compound represented by formula (I). The multi-cyano compound of the present application has a stronger complexation with a transition metal on the surface of a positive electrode material, and therefore a protective film can be formed on the surface of the positive electrode material, and the dissolution of the transition metal is effectively suppressed; the surface activity of the positive electrode material is reduced, thereby suppressing side reactions, such as the decomposition of the electrolytic solution on the surface of the positive electrode material; and the cycle performance and storage performance of a battery under wide range of working voltage and wide range of operating temperature conditions are thus improved.

  本申请涉及储能材料领域，特别是涉及一种电解溶液和一种使用该电解溶液的电池。本申请的电解溶液含有一种添加剂，该添加剂包括一种由式（I）表示的多氰基化合物。本申请的多元氰基化合物与正极材料表面的过渡金属具有更强的络合作用，因此可在正极材料表面形成保护膜，有效抑制过渡金属的溶解；降低正极材料的表面活性，从而抑制副反应，如正极材料表面的电解溶液分解；从而提高电池在宽工作电压范围和宽工作温度范围条件下的循环性能和储存性能。