Electrolyte and battery
AssigneesPositec Power Tools (Suzhou) Co., Ltd., Pu Chen
InventorsYang Liu, Pu Chen, Jing Yan
Life of this patent
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Abstract
A battery comprises a cathode, an anode and an electrolyte. The cathode comprises a cathode active material which is capable of reversibly intercalating and deintercalating a plurality of first metal ions; and a conductive agent, wherein the particle size of the conductive agent graphite is less than 50 μm and the crystallinity of the conductive agent graphite is no less than 90%.
Claims14
A cathode material for a battery, comprising:
- a cathode active material which is capable of reversibly intercalating-deintercalating a plurality of first metal ions and a conductive agent graphite;
- wherein the particle size of the conductive agent graphite is less than 50 μm and the crystallinity of the conductive agent graphite is no less than 90%,
- wherein the conductive agent graphite comprises a first graphite and a second graphite, the particle size of the first graphite is 15-50 μm and the particle size of the second graphite is 5 to 15 μm.
A battery comprising a cathode, an anode and an electrolyte, wherein the cathode comprises a cathode active material which is capable of reversibly intercalating and deintercalating a plurality of first metal ions;
- and a conductive agent graphite;
- wherein the particle size of the conductive agent graphite is less than 50 μm and the crystallinity of the conductive agent graphite is no less than 90%,
- wherein the electrolyte comprises at least a solvent capable of dissolving solute, the solute being ionized to a plurality of second metal ions that can be reduced to a metallic state during a charge cycle and be oxidized from the metallic state to the second metal ions during a discharge cycle and the plurality of first metal ions that can deintercalate from the cathode active material during the charge cycle and intercalate into the cathode active material during the discharge cycle, and
- wherein the plurality of second metal ions are selected from the group consisting of manganese ions, iron ions, copper ions, zinc ions, chromium ions, nickel ions, tin ions and lead ions.
A cathode material for a battery, comprising:
- a cathode active material which is capable of reversibly intercalating-deintercalating a plurality of first metal ions and a conductive agent graphite;
- wherein the particle size of the conductive agent graphite is less than 50 μm and the crystallinity of the conductive agent graphite is no less than 90% and wherein the particle size d10 of conductive agent graphite is 6 μm.
Dependencies are inferred from the claim text.