Other

Ronen Cohen

Emanuel Peled

Diana Golodnitsky

Mordechai Brand

Chen Menachem

Josef Kimel

Esther Elster

Avraham Melman

Yizchak Lavi

A composite solid electrolyte having a transference number above 0.5 for use in primary or secondary electrochemical cells. The solid electrolyte includes non-conductive oxide particles, of less than 5 microns in size, an alkali metal salt coating or in contact with these particles, an insulating elastomer forming a complex with the salt, and a solvent. Batteries and multi-cell batteries contain such solid electrolyte, and such batteries can be assembled with the cathod in the discharged state.

Solid electrolyte and batteries

A system for the supply of electrical energy by means of one or more high-power electrochemical cells. The system comprises a housing, such cell or cells being located at least partially in said housing and a fan or fans actuated during heavy discharge of the cell or cells to prevent the temperature rise of the cell or cells above a certain value. The system is of importance for high power cells, such as the various types of lithium cells, calcium, lithium alloy and calcium alloy cells. Temperature sensing means and a switch can be provided adapted to actuate the fan or fans when the temperature exceeds a certain value so as to provide cooling forced air circulation.

Power source

The invention relates to a multi-cell battery of electro-chemical cells of the type which is likely to be severely damaged and which is apt to release a substantial quantity of heat when short-circuited. According to the invention, the multi-cell unit is provided with a certain filler in the space between the constituent electrochemical cells, which is either a solid with a melting point in a predetermined range of temperature, or a liquid. The filler ought to be electrically non-conducting, and its quantity ought to have an adequate heat capacity and it ought also to be capable to transfer heat to adjacent cells.

Multi-cell battery

Growing community of inventors

Ramat Ishai, Israel

Ronen Cohen