Basf Se Corporation

Zhenji Han

Martin Schulz-Dobrick

Thomas Letzelter

Christoph Erk

Jinbum Kim

Eri Sawada

Jumpei Nakayama

Takeo Fukuzumi

Daisuke Morita

Junji Kashiwagi

Suhao Wei

Hitoshi Fukumitsu

Frank Rauscher

Masatoshi Matsumoto

Described herein is a process for manufacturing a coated cathode active material including the steps of

Process for making a coated electrode active material

Process for making a partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula LiTMO, wherein TM is Ni and, optionally, at least one of Co and Mn, and, optionally, at least one element selected from Al, Mg, Ba and B, transition metals other than Ni, Co, and Mn, and x is in the range of from zero to 0.2, wherein at least 50 mole-% of the transition metal of TM is Ni, (b) treating said electrode active material with an aqueous medium, (c) partially removing water by solid-liquid separation method, (d) treating the residue with a compound of Me, Me being selected from at least one of aluminum, boron, phosphorus, antimony, magnesium, vanadium, and tellurium, and (e) treating the residue thermally.

Process for making an at least partially coated electrode active material wherein said process comprises the following steps: (a) Providing an electrode active material according to general formula LiTMO, wherein TM is Ni and, optionally, at least one of Co and Mn, and, optionally, at least one element selected from Al, Mg, Ba and B, transition metals other than Ni, Co, and Mn, and x is in the range of from zero to 0.2, wherein at least 50 mole-% of the transition metal of TM is Ni, (b) treating said electrode active material with an aqueous formulation containing a compound of Me wherein Me is selected from Sb, Mg, Zn, Sn, and Te, (c) separating off the water, (d) treating the residue thermally.

Process for making an at least partially coated electrode active material

Heterocyclic sulfonyl fluoride additives for electrolyte composition for lithium batteries An electrolyte composition containing &#x2022;(i) at least one aprotic organic solvent; &#x2022;(ii) at least one conducting salt; &#x2022;(iii) at least one compound of formula (I) wherein R, R, and Rare each independently H or a C-Chydrocarbon group which may be unsubstituted or substituted by one or more substituents selected from F, CN, OS(O)F, and S(O)F and which may contain one or more groups selected from &#x2014;O&#x2014;, &#x2014;S&#x2014;, &#x2014;C(O)O&#x2014;, &#x2014;OC(O)&#x2014;, and &#x2014;OS(O)&#x2014;; wherein at least one of R, R, and Ris substituted by one or more S(O)F groups; and &#x2022;(iv) optionally one or more additives. 

Heterocyclic sulfonyl fluoride additives for electrolyte composition for lithium batteries

An electrolyte composition containing at least one aprotic organic solvent; at least one conducting salt; at least one compound of formula (I) and (vi) optionally one or more additives. 

Growing community of inventors

Amagasaki, Japan

Zhenji Han