Patent ID: 7993771

Claim:
An accumulator, wherein the accumulator comprises at least one galvanic cell and a receiving device for holding the at least one galvanic cell, which receiving device comprises at least one protecting wall for absorbing energy by at least one of elastic and ductile deformation, wherein the at least one protecting wall (i) surrounds the at least one galvanic cell which is held by the receiving device at least partially, (ii) has a thickness which is at least partially less than about 1/10 of a characteristic edge length of the at least one galvanic cell, and (iii) comprises at least one first material that is electrically non-conducting at a voltage which is similar to the nominal voltage of the accumulator and at least one filler material that is able to at least partially join with the cured first material by material engagement, the cured first material at least partially surrounding the at least one filler material, and wherein the cured first material with the filler material shows at least one of a larger Young's modulus and a larger tensile strength than the cured first material without the filler material.